FORMAT ALL TEH THINGS

.formatter.exs

@@ -0,0 +1,5 @@
+[
+  inputs: [
+    "mix.exs", "{config,lib,test}/**/*.{ex,exs}"
+  ]
+]

circle.yml

@@ -55,6 +55,7 @@ dependencies:
 
 test:
   pre:
+    - mix format --check-formatted
     - mix credo
     - mix sobelow --config
     - mix dialyzer --halt-exit-status

config/config.exs

@@ -6,8 +6,7 @@
 use Mix.Config
 
 # General application configuration
-config :explorer,
-  ecto_repos: [Explorer.Repo]
+config :explorer, ecto_repos: [Explorer.Repo]
 
 # Configures gettext
 config :explorer, ExplorerWeb.Gettext, locales: ~w(en), default_locale: "en"
@@ -18,21 +17,18 @@ config :explorer, ExplorerWeb.Endpoint,
   render_errors: [view: ExplorerWeb.ErrorView, accepts: ~w(html json)],
   pubsub: [name: Explorer.PubSub, adapter: Phoenix.PubSub.PG2]
 
-config :explorer, Explorer.Integrations.EctoLogger,
-  query_time_ms_threshold: 2_000
+config :explorer, Explorer.Integrations.EctoLogger, query_time_ms_threshold: 2_000
 
 # Configures Elixir's Logger
 config :logger, :console,
   format: "$time $metadata[$level] $message\n",
   metadata: [:request_id]
 
-config :ethereumex,
-  url: "http://localhost:8545"
+config :ethereumex, url: "http://localhost:8545"
 
-config :new_relixir,
-  active: false
+config :new_relixir, active: false
 
- config :ex_cldr,
+config :ex_cldr,
   default_locale: "en",
   locales: ["en"],
   gettext: ExplorerWeb.Gettext
@@ -47,9 +43,8 @@ config :exq,
   max_retries: 10,
   queues: [{"default", 1}, {"blocks", 1}, {"transactions", 1}, {"receipts", 1}]
 
-config :exq_ui,
-  server: false
+config :exq_ui, server: false
 
 # Import environment specific config. This must remain at the bottom
 # of this file so it overrides the configuration defined above.
-import_config "#{Mix.env}.exs"
+import_config "#{Mix.env()}.exs"

config/dev.exs

@@ -11,8 +11,14 @@ config :explorer, ExplorerWeb.Endpoint,
   debug_errors: true,
   code_reloader: true,
   check_origin: false,
-  watchers: [node: ["node_modules/brunch/bin/brunch", "watch", "--stdin",
-                    cd: Path.expand("../assets", __DIR__)]]
+  watchers: [
+    node: [
+      "node_modules/brunch/bin/brunch",
+      "watch",
+      "--stdin",
+      cd: Path.expand("../assets", __DIR__)
+    ]
+  ]
 
 # ## SSL Support
 #
@@ -58,10 +64,22 @@ config :explorer, Explorer.Repo,
 # Configure Quantum
 config :explorer, Explorer.Scheduler,
   jobs: [
-    [schedule: {:extended, "*/15 * * * * *"}, task: {Explorer.Workers.RefreshBalance, :perform_later, []}],
-    [schedule: {:extended, "*/5 * * * * *"}, task: {Explorer.Workers.ImportBlock, :perform_later, ["latest"]}],
-    [schedule: {:extended, "*/5 * * * * *"}, task: {Explorer.Workers.ImportBlock, :perform_later, ["pending"]}],
-    [schedule: {:extended, "*/15 * * * * *"}, task: {Explorer.Workers.ImportSkippedBlocks, :perform_later, [1]}],
+    [
+      schedule: {:extended, "*/15 * * * * *"},
+      task: {Explorer.Workers.RefreshBalance, :perform_later, []}
+    ],
+    [
+      schedule: {:extended, "*/5 * * * * *"},
+      task: {Explorer.Workers.ImportBlock, :perform_later, ["latest"]}
+    ],
+    [
+      schedule: {:extended, "*/5 * * * * *"},
+      task: {Explorer.Workers.ImportBlock, :perform_later, ["pending"]}
+    ],
+    [
+      schedule: {:extended, "*/15 * * * * *"},
+      task: {Explorer.Workers.ImportSkippedBlocks, :perform_later, [1]}
+    ]
   ]
 
 import_config "dev.secret.exs"

config/prod.exs

@@ -18,9 +18,17 @@ config :explorer, ExplorerWeb.Endpoint,
   force_ssl: [rewrite_on: [:x_forwarded_proto]],
   instrumenters: [NewRelixir.Instrumenters.Phoenix],
   load_from_system_env: true,
-  pubsub: [adapter: Phoenix.PubSub.Redis, url: System.get_env("REDIS_URL"), node_name: System.get_env("DYNO")],
+  pubsub: [
+    adapter: Phoenix.PubSub.Redis,
+    url: System.get_env("REDIS_URL"),
+    node_name: System.get_env("DYNO")
+  ],
   secret_key_base: System.get_env("SECRET_KEY_BASE"),
-  url: [scheme: "https", host: Map.fetch!(System.get_env(), "HEROKU_APP_NAME") <> ".herokuapp.com", port: 443]
+  url: [
+    scheme: "https",
+    host: Map.fetch!(System.get_env(), "HEROKU_APP_NAME") <> ".herokuapp.com",
+    port: 443
+  ]
 
 # Do not print debug messages in production
 config :logger, level: :info
@@ -42,16 +50,29 @@ config :new_relixir,
   active: true
 
 # Configure Web3
-config :ethereumex,
-  url: System.get_env("ETHEREUM_URL")
+config :ethereumex, url: System.get_env("ETHEREUM_URL")
 
 # Configure Quantum
 config :explorer, Explorer.Scheduler,
   jobs: [
-    [schedule: {:extended, System.get_env("EXQ_BALANCE_SCHEDULE") || "0 * * * * *"}, task: {Explorer.Workers.RefreshBalance, :perform_later, []}],
-    [schedule: {:extended, System.get_env("EXQ_LATEST_BLOCK_SCHEDULE") || "* * * * * *"}, task: {Explorer.Workers.ImportBlock, :perform_later, ["latest"]}],
-    [schedule: {:extended, System.get_env("EXQ_PENDING_BLOCK_SCHEDULE") || "* * * * * *"}, task: {Explorer.Workers.ImportBlock, :perform_later, ["pending"]}],
-    [schedule: {:extended, System.get_env("EXQ_BACKFILL_SCHEDULE") || "* * * * * *"}, task: {Explorer.Workers.ImportSkippedBlocks, :perform_later, [String.to_integer(System.get_env("EXQ_BACKFILL_BATCH_SIZE") || "1")]}],
+    [
+      schedule: {:extended, System.get_env("EXQ_BALANCE_SCHEDULE") || "0 * * * * *"},
+      task: {Explorer.Workers.RefreshBalance, :perform_later, []}
+    ],
+    [
+      schedule: {:extended, System.get_env("EXQ_LATEST_BLOCK_SCHEDULE") || "* * * * * *"},
+      task: {Explorer.Workers.ImportBlock, :perform_later, ["latest"]}
+    ],
+    [
+      schedule: {:extended, System.get_env("EXQ_PENDING_BLOCK_SCHEDULE") || "* * * * * *"},
+      task: {Explorer.Workers.ImportBlock, :perform_later, ["pending"]}
+    ],
+    [
+      schedule: {:extended, System.get_env("EXQ_BACKFILL_SCHEDULE") || "* * * * * *"},
+      task:
+        {Explorer.Workers.ImportSkippedBlocks, :perform_later,
+         [String.to_integer(System.get_env("EXQ_BACKFILL_BATCH_SIZE") || "1")]}
+    ]
   ]
 
 # Configure Exq

config/test.exs

@@ -21,9 +21,7 @@ config :explorer, Explorer.Repo,
   ownership_timeout: 60_000
 
 # Configure wallaby
-config :wallaby,
-  screenshot_on_failure: true
+config :wallaby, screenshot_on_failure: true
 
 # Configure ethereumex
-config :ethereumex,
-  url: "https://sokol-trace.poa.network"
+config :ethereumex, url: "https://sokol-trace.poa.network"

lib/explorer/address.ex

@@ -13,13 +13,15 @@ defmodule Explorer.Address do
   alias Explorer.Debit
   alias Explorer.Repo.NewRelic, as: Repo
 
-  @timestamps_opts [type: Timex.Ecto.DateTime,
-                    autogenerate: {Timex.Ecto.DateTime, :autogenerate, []}]
+  @timestamps_opts [
+    type: Timex.Ecto.DateTime,
+    autogenerate: {Timex.Ecto.DateTime, :autogenerate, []}
+  ]
 
   schema "addresses" do
-    has_one :credit, Credit
-    has_one :debit, Debit
-    field :hash, :string
+    has_one(:credit, Credit)
+    has_one(:debit, Debit)
+    field(:hash, :string)
     timestamps()
   end
 
@@ -27,9 +29,13 @@ defmodule Explorer.Address do
   @optional_attrs ~w()a
 
   def find_or_create_by_hash(hash) do
-    query = from a in Address,
+    query =
+      from(
+        a in Address,
         where: fragment("lower(?)", a.hash) == ^String.downcase(hash),
         limit: 1
+      )
+
     case query |> Repo.one() do
       nil -> Repo.insert!(Address.changeset(%Address{}, %{hash: hash}))
       address -> address

lib/explorer/application.ex

@@ -11,7 +11,7 @@ defmodule Explorer.Application do
     # See https://hexdocs.pm/elixir/Supervisor.html
     # for other strategies and supported options
     opts = [strategy: :one_for_one, name: Explorer.Supervisor]
-    Supervisor.start_link(children(Mix.env), opts)
+    Supervisor.start_link(children(Mix.env()), opts)
   end
 
   # Tell Phoenix to update the endpoint configuration
@@ -23,10 +23,13 @@ defmodule Explorer.Application do
   end
 
   defp children(:test), do: children()
+
   defp children(_) do
     import Supervisor.Spec
     exq_options = [] |> Keyword.put(:mode, :enqueuer)
-    children() ++ [
+
+    children() ++
+      [
         supervisor(Exq, [exq_options]),
         worker(Explorer.Servers.ChainStatistics, [])
       ]
@@ -34,9 +37,10 @@ defmodule Explorer.Application do
 
   defp children do
     import Supervisor.Spec
+
     [
       supervisor(Explorer.Repo, []),
-      supervisor(ExplorerWeb.Endpoint, []),
+      supervisor(ExplorerWeb.Endpoint, [])
     ]
   end
 end

lib/explorer/block.ex

@@ -12,24 +12,26 @@ defmodule Explorer.Block do
   alias Explorer.BlockTransaction
   alias Explorer.Transaction
 
-  @timestamps_opts [type: Timex.Ecto.DateTime,
-                    autogenerate: {Timex.Ecto.DateTime, :autogenerate, []}]
+  @timestamps_opts [
+    type: Timex.Ecto.DateTime,
+    autogenerate: {Timex.Ecto.DateTime, :autogenerate, []}
+  ]
 
   schema "blocks" do
-    has_many :block_transactions, BlockTransaction
-    many_to_many :transactions, Transaction, join_through: "block_transactions"
-
-    field :number, :integer
-    field :hash, :string
-    field :parent_hash, :string
-    field :nonce, :string
-    field :miner, :string
-    field :difficulty, :decimal
-    field :total_difficulty, :decimal
-    field :size, :integer
-    field :gas_limit, :integer
-    field :gas_used, :integer
-    field :timestamp, Timex.Ecto.DateTime
+    has_many(:block_transactions, BlockTransaction)
+    many_to_many(:transactions, Transaction, join_through: "block_transactions")
+
+    field(:number, :integer)
+    field(:hash, :string)
+    field(:parent_hash, :string)
+    field(:nonce, :string)
+    field(:miner, :string)
+    field(:difficulty, :decimal)
+    field(:total_difficulty, :decimal)
+    field(:size, :integer)
+    field(:gas_limit, :integer)
+    field(:gas_used, :integer)
+    field(:timestamp, Timex.Ecto.DateTime)
     timestamps()
   end
 

lib/explorer/block_transaction.ex

@@ -4,13 +4,15 @@ defmodule Explorer.BlockTransaction do
   import Ecto.Changeset
   use Ecto.Schema
 
-  @timestamps_opts [type: Timex.Ecto.DateTime,
-                    autogenerate: {Timex.Ecto.DateTime, :autogenerate, []}]
+  @timestamps_opts [
+    type: Timex.Ecto.DateTime,
+    autogenerate: {Timex.Ecto.DateTime, :autogenerate, []}
+  ]
 
   @primary_key false
   schema "block_transactions" do
-    belongs_to :block, Explorer.Block
-    belongs_to :transaction, Explorer.Transaction, primary_key: true
+    belongs_to(:block, Explorer.Block)
+    belongs_to(:transaction, Explorer.Transaction, primary_key: true)
     timestamps()
   end
 
@@ -22,7 +24,6 @@ defmodule Explorer.BlockTransaction do
     |> validate_required(@required_attrs)
     |> cast_assoc(:block)
     |> cast_assoc(:transaction)
-    |> unique_constraint(:transaction_id,
-      name: :block_transactions_transaction_id_index)
+    |> unique_constraint(:transaction_id, name: :block_transactions_transaction_id_index)
   end
 end

lib/explorer/chain.ex

@@ -11,8 +11,7 @@ defmodule Explorer.Chain do
   alias Explorer.Repo, as: Repo
   alias Timex.Duration
 
-  defstruct [
-    number: -1,
+  defstruct number: -1,
             timestamp: :calendar.universal_time(),
             average_time: %Duration{seconds: 0, megaseconds: 0, microseconds: 0},
             lag: %Duration{seconds: 0, megaseconds: 0, microseconds: 0},
@@ -22,7 +21,6 @@ defmodule Explorer.Chain do
             transaction_velocity: 0,
             blocks: [],
             transactions: []
-  ]
 
   @average_time_query """
     SELECT coalesce(avg(difference), interval '0 seconds')
@@ -71,19 +69,26 @@ defmodule Explorer.Chain do
   """
 
   def fetch do
-    blocks = from block in Block,
+    blocks =
+      from(
+        block in Block,
         order_by: [desc: block.number],
         preload: :transactions,
         limit: 5
+      )
 
-    transactions = from transaction in Transaction,
+    transactions =
+      from(
+        transaction in Transaction,
         join: block in assoc(transaction, :block),
         order_by: [desc: block.number],
         preload: [block: block],
         limit: 5
+      )
 
     last_block = Block |> Block.latest() |> limit(1) |> Repo.one()
-    latest_block = last_block || Block.null
+    latest_block = last_block || Block.null()
+
     %Explorer.Chain{
       number: latest_block.number,
       timestamp: latest_block.timestamp,
@@ -105,10 +110,13 @@ defmodule Explorer.Chain do
 
   defp query_duration(query) do
     results = SQL.query!(Repo, query, [])
-    {:ok, value} = results.rows
+
+    {:ok, value} =
+      results.rows
       |> List.first()
       |> List.first()
       |> Timex.Ecto.Time.load()
+
     value
   end
 end

lib/explorer/credit.ex

@@ -9,19 +9,22 @@ defmodule Explorer.Credit do
   alias Explorer.Address
   alias Explorer.Repo
 
-  @timestamps_opts [type: Timex.Ecto.DateTime,
-                    autogenerate: {Timex.Ecto.DateTime, :autogenerate, []}]
+  @timestamps_opts [
+    type: Timex.Ecto.DateTime,
+    autogenerate: {Timex.Ecto.DateTime, :autogenerate, []}
+  ]
 
   @primary_key false
   schema "credits" do
-    belongs_to :address, Address, primary_key: true
-    field :value, :decimal
-    field :count, :integer
+    belongs_to(:address, Address, primary_key: true)
+    field(:value, :decimal)
+    field(:count, :integer)
     timestamps()
   end
 
   def refresh do
     SQL.query!(Repo, "REFRESH MATERIALIZED VIEW CONCURRENTLY credits;", [], timeout: 120_000)
   end
+
   def null, do: %__MODULE__{value: Decimal.new(0), count: 0}
 end

lib/explorer/debit.ex

@@ -9,19 +9,22 @@ defmodule Explorer.Debit do
   alias Explorer.Address
   alias Explorer.Repo
 
-  @timestamps_opts [type: Timex.Ecto.DateTime,
-                    autogenerate: {Timex.Ecto.DateTime, :autogenerate, []}]
+  @timestamps_opts [
+    type: Timex.Ecto.DateTime,
+    autogenerate: {Timex.Ecto.DateTime, :autogenerate, []}
+  ]
 
   @primary_key false
   schema "debits" do
-    belongs_to :address, Address, primary_key: true
-    field :value, :decimal
-    field :count, :integer
+    belongs_to(:address, Address, primary_key: true)
+    field(:value, :decimal)
+    field(:count, :integer)
     timestamps()
   end
 
   def refresh do
     SQL.query!(Repo, "REFRESH MATERIALIZED VIEW CONCURRENTLY debits;", [], timeout: 120_000)
   end
+
   def null, do: %__MODULE__{value: Decimal.new(0), count: 0}
 end

lib/explorer/forms/address_form.ex

@@ -5,8 +5,8 @@ defmodule Explorer.AddressForm do
   alias Explorer.Debit
 
   def build(address) do
-    credit = address.credit || Credit.null
-    debit = address.debit || Debit.null
+    credit = address.credit || Credit.null()
+    debit = address.debit || Debit.null()
     balance = Decimal.sub(credit.value, debit.value)
     Map.put(address, :balance, balance)
   end

lib/explorer/forms/block_form.ex

@@ -6,24 +6,29 @@ defmodule Explorer.BlockForm do
   import Ecto.Query
 
   def build(block) do
-    block |> Map.merge(%{
+    block
+    |> Map.merge(%{
       transactions_count: block |> get_transactions_count,
       age: block |> calculate_age,
-      formatted_timestamp: block |> format_timestamp,
+      formatted_timestamp: block |> format_timestamp
     })
   end
 
   def get_transactions_count(block) do
-    query = from block_transaction in BlockTransaction,
+    query =
+      from(
+        block_transaction in BlockTransaction,
         join: block in Block,
         where: block.id == block_transaction.block_id,
         where: block.id == ^block.id,
         select: count(block_transaction.block_id)
+      )
+
     Repo.one(query)
   end
 
   def calculate_age(block) do
-    block.timestamp |> Timex.from_now
+    block.timestamp |> Timex.from_now()
   end
 
   def format_timestamp(block) do

lib/explorer/forms/pending_transaction_form.ex

@@ -15,18 +15,18 @@ defmodule Explorer.PendingTransactionForm do
   end
 
   def to_address_hash(transaction) do
-    transaction.to_address && transaction.to_address.hash || nil
+    (transaction.to_address && transaction.to_address.hash) || nil
   end
 
   def from_address_hash(transaction) do
-    transaction.to_address && transaction.from_address.hash || nil
+    (transaction.to_address && transaction.from_address.hash) || nil
   end
 
   def first_seen(transaction) do
-    transaction.inserted_at |> Timex.from_now
+    transaction.inserted_at |> Timex.from_now()
   end
 
   def last_seen(transaction) do
-    transaction.updated_at |> Timex.from_now
+    transaction.updated_at |> Timex.from_now()
   end
 end

lib/explorer/forms/transaction_form.ex

@@ -10,9 +10,9 @@ defmodule Explorer.TransactionForm do
   alias Explorer.Repo
 
   def build(transaction) do
-    block = Ecto.assoc_loaded?(transaction.block) && transaction.block || nil
+    block = (Ecto.assoc_loaded?(transaction.block) && transaction.block) || nil
     receipt = Ecto.assoc_loaded?(transaction.receipt) && transaction.receipt
-    status = status(transaction, receipt || Receipt.null)
+    status = status(transaction, receipt || Receipt.null())
 
     %{
       block_number: block |> block_number,
@@ -26,7 +26,7 @@ defmodule Explorer.TransactionForm do
       status: status,
       formatted_status: status |> format_status,
       first_seen: transaction |> first_seen,
-      last_seen: transaction |> last_seen,
+      last_seen: transaction |> last_seen
     }
   end
 
@@ -35,36 +35,37 @@ defmodule Explorer.TransactionForm do
   end
 
   def block_number(block) do
-    block && block.number || ""
+    (block && block.number) || ""
   end
 
   def block_age(block) do
-    block && block.timestamp |> Timex.from_now || gettext("Pending")
+    (block && block.timestamp |> Timex.from_now()) || gettext("Pending")
   end
 
   def format_age(block) do
-    block && "#{block_age(block)} (#{format_timestamp(block)})" || gettext("Pending")
+    (block && "#{block_age(block)} (#{format_timestamp(block)})") || gettext("Pending")
   end
 
   def format_timestamp(block) do
-    block && block.timestamp |> Timex.format!("%b-%d-%Y %H:%M:%S %p %Z", :strftime) || gettext("Pending")
+    (block && block.timestamp |> Timex.format!("%b-%d-%Y %H:%M:%S %p %Z", :strftime)) ||
+      gettext("Pending")
   end
 
   def cumulative_gas_used(block) do
-    block && block.gas_used |> Number.to_string! || gettext("Pending")
+    (block && block.gas_used |> Number.to_string!()) || gettext("Pending")
   end
 
   def to_address_hash(transaction) do
-    transaction.to_address && transaction.to_address.hash || nil
+    (transaction.to_address && transaction.to_address.hash) || nil
   end
 
   def from_address_hash(transaction) do
-    transaction.to_address && transaction.from_address.hash || nil
+    (transaction.to_address && transaction.from_address.hash) || nil
   end
 
   def confirmations(block) do
-    query = from block in Block, select: max(block.number)
-    block && Repo.one(query) - block.number || 0
+    query = from(block in Block, select: max(block.number))
+    (block && Repo.one(query) - block.number) || 0
   end
 
   def status(transaction, receipt) do
@@ -81,15 +82,16 @@ defmodule Explorer.TransactionForm do
       out_of_gas: gettext("Out of Gas"),
       failed: gettext("Failed"),
       success: gettext("Success"),
-      pending: gettext("Pending"),
-    } |> Map.fetch!(status)
+      pending: gettext("Pending")
+    }
+    |> Map.fetch!(status)
   end
 
   def first_seen(transaction) do
-    transaction.inserted_at |> Timex.from_now
+    transaction.inserted_at |> Timex.from_now()
   end
 
   def last_seen(transaction) do
-    transaction.updated_at |> Timex.from_now
+    transaction.updated_at |> Timex.from_now()
   end
 end

lib/explorer/from_address.ex

@@ -4,20 +4,21 @@ defmodule Explorer.FromAddress do
   import Ecto.Changeset
   use Ecto.Schema
 
-  @timestamps_opts [type: Timex.Ecto.DateTime,
-                    autogenerate: {Timex.Ecto.DateTime, :autogenerate, []}]
+  @timestamps_opts [
+    type: Timex.Ecto.DateTime,
+    autogenerate: {Timex.Ecto.DateTime, :autogenerate, []}
+  ]
 
   @primary_key false
   schema "from_addresses" do
-    belongs_to :transaction, Explorer.Transaction, primary_key: true
-    belongs_to :address, Explorer.Address
+    belongs_to(:transaction, Explorer.Transaction, primary_key: true)
+    belongs_to(:address, Explorer.Address)
     timestamps()
   end
 
   def changeset(%FromAddress{} = to_address, attrs \\ %{}) do
     to_address
     |> cast(attrs, [:transaction_id, :address_id])
-    |> unique_constraint(:transaction_id,
-      name: :from_addresses_transaction_id_index)
+    |> unique_constraint(:transaction_id, name: :from_addresses_transaction_id_index)
   end
 end

lib/explorer/importers/block_importer.ex

@@ -12,7 +12,7 @@ defmodule Explorer.BlockImporter do
     changes = extract_block(raw_block)
     block = changes.hash |> find()
 
-    if is_nil(block.id), do: block |> Block.changeset(changes) |> Repo.insert
+    if is_nil(block.id), do: block |> Block.changeset(changes) |> Repo.insert()
 
     Enum.map(raw_block["transactions"], &ImportTransaction.perform/1)
   end
@@ -30,17 +30,23 @@ defmodule Explorer.BlockImporter do
   end
 
   def find(hash) do
-    query = from b in Block,
+    query =
+      from(
+        b in Block,
         where: fragment("lower(?)", b.hash) == ^String.downcase(hash),
         limit: 1
-    (query |> Repo.one()) || %Block{}
+      )
+
+    query |> Repo.one() || %Block{}
   end
 
   @dialyzer {:nowarn_function, download_block: 1}
   def download_block(block_number) do
-    {:ok, block} = block_number
+    {:ok, block} =
+      block_number
       |> encode_number()
       |> eth_get_block_by_number(true)
+
     block
   end
 
@@ -56,7 +62,7 @@ defmodule Explorer.BlockImporter do
       total_difficulty: raw_block["totalDifficulty"] |> decode_integer_field,
       size: raw_block["size"] |> decode_integer_field,
       gas_limit: raw_block["gasLimit"] |> decode_integer_field,
-      nonce: raw_block["nonce"] || "0",
+      nonce: raw_block["nonce"] || "0"
     }
   end
 
@@ -64,6 +70,7 @@ defmodule Explorer.BlockImporter do
   defp encode_number("earliest"), do: "earliest"
   defp encode_number("pending"), do: "pending"
   defp encode_number("0x" <> number) when is_binary(number), do: number
+
   defp encode_number(number) when is_binary(number) do
     number
     |> String.to_integer()
@@ -78,6 +85,6 @@ defmodule Explorer.BlockImporter do
   end
 
   def decode_time_field(field) do
-    field |> decode_integer_field |> Timex.from_unix
+    field |> decode_integer_field |> Timex.from_unix()
   end
 end

lib/explorer/importers/internal_transaction_importer.ex

@@ -12,6 +12,7 @@ defmodule Explorer.InternalTransactionImporter do
   @dialyzer {:nowarn_function, import: 1}
   def import(hash) do
     transaction = find_transaction(hash)
+
     hash
     |> download_trace
     |> extract_attrs
@@ -24,9 +25,13 @@ defmodule Explorer.InternalTransactionImporter do
   end
 
   defp find_transaction(hash) do
-    query = from t in Transaction,
+    query =
+      from(
+        t in Transaction,
         where: fragment("lower(?)", t.hash) == ^String.downcase(hash),
         limit: 1
+      )
+
     Repo.one!(query)
   end
 
@@ -47,12 +52,13 @@ defmodule Explorer.InternalTransactionImporter do
       gas: trace["action"]["gas"] |> decode_integer_field,
       gas_used: trace["result"]["gasUsed"] |> decode_integer_field,
       input: trace["action"]["input"],
-      output: trace["result"]["output"],
+      output: trace["result"]["output"]
     }
   end
 
   defp to_address(%{"action" => %{"to" => address}})
-  when not is_nil(address), do: address
+       when not is_nil(address),
+       do: address
 
   defp to_address(%{"result" => %{"address" => address}}), do: address
 
@@ -60,8 +66,9 @@ defmodule Explorer.InternalTransactionImporter do
 
   @dialyzer {:nowarn_function, persist_internal_transactions: 2}
   defp persist_internal_transactions(traces, transaction) do
-    Enum.map(traces, fn(trace) ->
+    Enum.map(traces, fn trace ->
       trace = Map.merge(trace, %{transaction_id: transaction.id})
+
       %InternalTransaction{}
       |> InternalTransaction.changeset(trace)
       |> Repo.insert()

lib/explorer/importers/receipt_importer.ex

@@ -11,6 +11,7 @@ defmodule Explorer.ReceiptImporter do
 
   def import(hash) do
     transaction = hash |> find_transaction()
+
     hash
     |> download_receipt()
     |> extract_receipt()
@@ -25,12 +26,16 @@ defmodule Explorer.ReceiptImporter do
   end
 
   defp find_transaction(hash) do
-    query = from transaction in Transaction,
+    query =
+      from(
+        transaction in Transaction,
         left_join: receipt in assoc(transaction, :receipt),
         where: fragment("lower(?)", transaction.hash) == ^hash,
         where: is_nil(receipt.id),
         limit: 1
-    Repo.one(query) || Transaction.null
+      )
+
+    Repo.one(query) || Transaction.null()
   end
 
   defp save_receipt(receipt) do
@@ -43,6 +48,7 @@ defmodule Explorer.ReceiptImporter do
 
   defp extract_receipt(receipt) do
     logs = receipt["logs"] || []
+
     %{
       index: receipt["transactionIndex"] |> decode_integer_field(),
       cumulative_gas_used: receipt["cumulativeGasUsed"] |> decode_integer_field(),
@@ -54,6 +60,7 @@ defmodule Explorer.ReceiptImporter do
 
   defp extract_log(log) do
     address = Address.find_or_create_by_hash(log["address"])
+
     %{
       address_id: address.id,
       index: log["logIndex"] |> decode_integer_field(),
@@ -62,12 +69,13 @@ defmodule Explorer.ReceiptImporter do
       first_topic: log["topics"] |> Enum.at(0),
       second_topic: log["topics"] |> Enum.at(1),
       third_topic: log["topics"] |> Enum.at(2),
-      fourth_topic: log["topics"] |> Enum.at(3),
+      fourth_topic: log["topics"] |> Enum.at(3)
     }
   end
 
   defp decode_integer_field("0x" <> hex) when is_binary(hex) do
     String.to_integer(hex, 16)
   end
+
   defp decode_integer_field(field), do: field
 end

lib/explorer/importers/transaction_importer.ex

@@ -23,14 +23,18 @@ defmodule Explorer.TransactionImporter do
   def persist_transaction(raw_transaction) do
     found_transaction = raw_transaction["hash"] |> find()
 
-    transaction = case is_nil(found_transaction.id) do
-      false -> found_transaction
+    transaction =
+      case is_nil(found_transaction.id) do
+        false ->
+          found_transaction
+
         true ->
           changes = extract_attrs(raw_transaction)
-        found_transaction |> Transaction.changeset(changes) |> Repo.insert!
+          found_transaction |> Transaction.changeset(changes) |> Repo.insert!()
       end
 
     to_address = raw_transaction["to"] || raw_transaction["creates"]
+
     transaction
     |> create_from_address(raw_transaction["from"])
     |> create_to_address(to_address)
@@ -38,10 +42,14 @@ defmodule Explorer.TransactionImporter do
   end
 
   def find(hash) do
-    query = from t in Transaction,
+    query =
+      from(
+        t in Transaction,
         where: fragment("lower(?)", t.hash) == ^String.downcase(hash),
         limit: 1
-    (query |> Repo.one()) || %Transaction{}
+      )
+
+    query |> Repo.one() || %Transaction{}
   end
 
   def download_transaction(hash) do
@@ -62,27 +70,33 @@ defmodule Explorer.TransactionImporter do
       s: raw_transaction["s"],
       standard_v: raw_transaction["standardV"],
       transaction_index: raw_transaction["transactionIndex"],
-      v: raw_transaction["v"],
+      v: raw_transaction["v"]
     }
   end
 
   def create_block_transaction(transaction, hash) do
-    query = from t in Block,
+    query =
+      from(
+        t in Block,
         where: fragment("lower(?)", t.hash) == ^String.downcase(hash),
         limit: 1
+      )
+
     block = query |> Repo.one()
 
     if block do
       changes = %{block_id: block.id, transaction_id: transaction.id}
+
       case Repo.get_by(BlockTransaction, transaction_id: transaction.id) do
         nil ->
           %BlockTransaction{}
           |> BlockTransaction.changeset(changes)
-          |> Repo.insert
+          |> Repo.insert()
+
         block_transaction ->
           block_transaction
           |> BlockTransaction.changeset(%{block_id: block.id})
-          |> Repo.update
+          |> Repo.update()
       end
     end
 

lib/explorer/internal_transaction.ex

@@ -9,21 +9,23 @@ defmodule Explorer.InternalTransaction do
   alias Explorer.Transaction
   alias Explorer.Address
 
-  @timestamps_opts [type: Timex.Ecto.DateTime,
-                    autogenerate: {Timex.Ecto.DateTime, :autogenerate, []}]
+  @timestamps_opts [
+    type: Timex.Ecto.DateTime,
+    autogenerate: {Timex.Ecto.DateTime, :autogenerate, []}
+  ]
 
   schema "internal_transactions" do
-    belongs_to :transaction, Transaction
-    belongs_to :from_address, Address
-    belongs_to :to_address, Address
-    field :index, :integer
-    field :call_type, :string
-    field :trace_address, {:array, :integer}
-    field :value, :decimal
-    field :gas, :decimal
-    field :gas_used, :decimal
-    field :input, :string
-    field :output, :string
+    belongs_to(:transaction, Transaction)
+    belongs_to(:from_address, Address)
+    belongs_to(:to_address, Address)
+    field(:index, :integer)
+    field(:call_type, :string)
+    field(:trace_address, {:array, :integer})
+    field(:value, :decimal)
+    field(:gas, :decimal)
+    field(:gas_used, :decimal)
+    field(:input, :string)
+    field(:output, :string)
     timestamps()
   end
 

lib/explorer/log.ex

@@ -9,8 +9,10 @@ defmodule Explorer.Log do
   alias Explorer.Log
   alias Explorer.Receipt
 
-  @timestamps_opts [type: Timex.Ecto.DateTime,
-                    autogenerate: {Timex.Ecto.DateTime, :autogenerate, []}]
+  @timestamps_opts [
+    type: Timex.Ecto.DateTime,
+    autogenerate: {Timex.Ecto.DateTime, :autogenerate, []}
+  ]
 
   @required_attrs ~w(index data type)a
   @optional_attrs ~w(
@@ -18,16 +20,16 @@ defmodule Explorer.Log do
   )a
 
   schema "logs" do
-    belongs_to :receipt, Receipt
-    belongs_to :address, Address
-    has_one :transaction, through: [:receipt, :transaction]
-    field :index, :integer
-    field :data, :string
-    field :type, :string
-    field :first_topic, :string
-    field :second_topic, :string
-    field :third_topic, :string
-    field :fourth_topic, :string
+    belongs_to(:receipt, Receipt)
+    belongs_to(:address, Address)
+    has_one(:transaction, through: [:receipt, :transaction])
+    field(:index, :integer)
+    field(:data, :string)
+    field(:type, :string)
+    field(:first_topic, :string)
+    field(:second_topic, :string)
+    field(:third_topic, :string)
+    field(:fourth_topic, :string)
     timestamps()
   end
 

lib/explorer/receipt.ex

@@ -9,19 +9,21 @@ defmodule Explorer.Receipt do
   alias Explorer.Log
   alias Explorer.Receipt
 
-  @timestamps_opts [type: Timex.Ecto.DateTime,
-                    autogenerate: {Timex.Ecto.DateTime, :autogenerate, []}]
+  @timestamps_opts [
+    type: Timex.Ecto.DateTime,
+    autogenerate: {Timex.Ecto.DateTime, :autogenerate, []}
+  ]
 
   @required_attrs ~w(cumulative_gas_used gas_used status index)a
   @optional_attrs ~w(transaction_id)a
 
   schema "receipts" do
-    belongs_to :transaction, Transaction
-    has_many :logs, Log
-    field :cumulative_gas_used, :decimal
-    field :gas_used, :decimal
-    field :status, :integer
-    field :index, :integer
+    belongs_to(:transaction, Transaction)
+    has_many(:logs, Log)
+    field(:cumulative_gas_used, :decimal)
+    field(:gas_used, :decimal)
+    field(:status, :integer)
+    field(:index, :integer)
     timestamps()
   end
 

lib/explorer/resource.ex

@@ -1,5 +1,4 @@
 defmodule Explorer.Resource do
-
   @moduledoc "Looks up and fetches resource based on its handle (either an id or hash)"
 
   import Ecto.Query, only: [from: 2]
@@ -16,17 +15,23 @@ defmodule Explorer.Resource do
   def lookup(number), do: fetch_block(number)
 
   def fetch_address(hash) do
-    query = from address in Address,
+    query =
+      from(
+        address in Address,
         where: fragment("lower(?)", address.hash) == ^String.downcase(hash),
         limit: 1
+      )
 
     Repo.one(query)
   end
 
   def fetch_transaction(hash) do
-    query = from transaction in Transaction,
+    query =
+      from(
+        transaction in Transaction,
         where: fragment("lower(?)", transaction.hash) == ^String.downcase(hash),
         limit: 1
+      )
 
     Repo.one(query)
   end
@@ -39,9 +44,12 @@ defmodule Explorer.Resource do
   end
 
   def fetch_block(number) when is_integer(number) do
-    query = from b in Block,
+    query =
+      from(
+        b in Block,
         where: b.number == ^number,
         limit: 1
+      )
 
     Repo.one(query)
   end

lib/explorer/servers/chain_statistics.ex

@@ -15,6 +15,7 @@ defmodule Explorer.Servers.ChainStatistics do
   end
 
   def start_link, do: start_link(true)
+
   def start_link(refresh) do
     GenServer.start_link(__MODULE__, refresh, name: __MODULE__)
   end
@@ -30,14 +31,18 @@ defmodule Explorer.Servers.ChainStatistics do
     Task.start_link(fn ->
       GenServer.cast(__MODULE__, {:update, Chain.fetch()})
     end)
+
     {:noreply, chain}
   end
+
   def handle_info(_, %Chain{} = chain), do: {:noreply, chain}
   def handle_call(:fetch, _, %Chain{} = chain), do: {:reply, chain, chain}
   def handle_call(_, _, %Chain{} = chain), do: {:noreply, chain}
+
   def handle_cast({:update, %Chain{} = chain}, %Chain{} = _) do
     Process.send_after(self(), :refresh, @interval)
     {:noreply, chain}
   end
+
   def handle_cast(_, %Chain{} = chain), do: {:noreply, chain}
 end

lib/explorer/services/transaction.ex

@@ -18,17 +18,20 @@ defmodule Explorer.Transaction.Service do
     import Ecto.Query, only: [from: 2]
 
     def for_transaction(query, hash) do
-      from(child in query,
+      from(
+        child in query,
         inner_join: transaction in assoc(child, :transaction),
         where: fragment("lower(?)", transaction.hash) == ^String.downcase(hash)
       )
     end
 
     def join_from_and_to_addresses(query) do
-      from(q in query,
+      from(
+        q in query,
         inner_join: to_address in assoc(q, :to_address),
         inner_join: from_address in assoc(q, :from_address),
-        preload: [:to_address, :from_address])
+        preload: [:to_address, :from_address]
+      )
     end
   end
 end

lib/explorer/skipped_blocks.ex

@@ -9,18 +9,23 @@ defmodule Explorer.SkippedBlocks do
   @missing_number_query "SELECT generate_series(?, 0, -1) AS missing_number"
 
   def first, do: first(1)
+
   def first(count) do
-    blocks = from b in Block,
+    blocks =
+      from(
+        b in Block,
         right_join: fragment(@missing_number_query, ^latest_block_number()),
         on: b.number == fragment("missing_number"),
         select: fragment("missing_number::text"),
         where: is_nil(b.id),
         limit: ^count
+      )
+
     Repo.all(blocks)
   end
 
   def latest_block_number do
-    block = Repo.one(Block |> Block.latest |> limit(1)) || Block.null
+    block = Repo.one(Block |> Block.latest() |> limit(1)) || Block.null()
     block.number
   end
 end

lib/explorer/skipped_receipts.ex

@@ -8,12 +8,17 @@ defmodule Explorer.SkippedReceipts do
   alias Explorer.Repo.NewRelic, as: Repo
 
   def first, do: first(1)
+
   def first(count) do
-    transactions = from transaction in Transaction,
+    transactions =
+      from(
+        transaction in Transaction,
         left_join: receipt in assoc(transaction, :receipt),
         select: fragment("hash"),
         where: is_nil(receipt.id),
         limit: ^count
+      )
+
     Repo.all(transactions)
   end
 end

lib/explorer/to_address.ex

@@ -4,20 +4,21 @@ defmodule Explorer.ToAddress do
   import Ecto.Changeset
   use Ecto.Schema
 
-  @timestamps_opts [type: Timex.Ecto.DateTime,
-                    autogenerate: {Timex.Ecto.DateTime, :autogenerate, []}]
+  @timestamps_opts [
+    type: Timex.Ecto.DateTime,
+    autogenerate: {Timex.Ecto.DateTime, :autogenerate, []}
+  ]
 
   @primary_key false
   schema "to_addresses" do
-    belongs_to :transaction, Explorer.Transaction, primary_key: true
-    belongs_to :address, Explorer.Address
+    belongs_to(:transaction, Explorer.Transaction, primary_key: true)
+    belongs_to(:address, Explorer.Address)
     timestamps()
   end
 
   def changeset(%ToAddress{} = to_address, attrs \\ %{}) do
     to_address
     |> cast(attrs, [:transaction_id, :address_id])
-    |> unique_constraint(:transaction_id,
-      name: :to_addresses_transaction_id_index)
+    |> unique_constraint(:transaction_id, name: :to_addresses_transaction_id_index)
   end
 end

lib/explorer/transaction.ex

@@ -12,30 +12,32 @@ defmodule Explorer.Transaction do
   alias Explorer.ToAddress
   alias Explorer.Transaction
 
-  @timestamps_opts [type: Timex.Ecto.DateTime,
-                    autogenerate: {Timex.Ecto.DateTime, :autogenerate, []}]
+  @timestamps_opts [
+    type: Timex.Ecto.DateTime,
+    autogenerate: {Timex.Ecto.DateTime, :autogenerate, []}
+  ]
 
   schema "transactions" do
-    has_one :receipt, Receipt
-    has_one :block_transaction, BlockTransaction
-    has_one :block, through: [:block_transaction, :block]
-    has_one :to_address_join, ToAddress
-    has_one :to_address, through: [:to_address_join, :address]
-    has_one :from_address_join, FromAddress
-    has_one :from_address, through: [:from_address_join, :address]
-    has_many :internal_transactions, InternalTransaction
-    field :hash, :string
-    field :value, :decimal
-    field :gas, :decimal
-    field :gas_price, :decimal
-    field :input, :string
-    field :nonce, :integer
-    field :public_key, :string
-    field :r, :string
-    field :s, :string
-    field :standard_v, :string
-    field :transaction_index, :string
-    field :v, :string
+    has_one(:receipt, Receipt)
+    has_one(:block_transaction, BlockTransaction)
+    has_one(:block, through: [:block_transaction, :block])
+    has_one(:to_address_join, ToAddress)
+    has_one(:to_address, through: [:to_address_join, :address])
+    has_one(:from_address_join, FromAddress)
+    has_one(:from_address, through: [:from_address_join, :address])
+    has_many(:internal_transactions, InternalTransaction)
+    field(:hash, :string)
+    field(:value, :decimal)
+    field(:gas, :decimal)
+    field(:gas_price, :decimal)
+    field(:input, :string)
+    field(:nonce, :integer)
+    field(:public_key, :string)
+    field(:r, :string)
+    field(:s, :string)
+    field(:standard_v, :string)
+    field(:transaction_index, :string)
+    field(:v, :string)
     timestamps()
   end
 

lib/explorer/workers/import_skipped_blocks.ex

@@ -5,11 +5,13 @@ defmodule Explorer.Workers.ImportSkippedBlocks do
   @moduledoc "Imports skipped blocks."
 
   def perform, do: perform(1)
+
   def perform(count) do
-    count |> SkippedBlocks.first |> Enum.map(&ImportBlock.perform_later/1)
+    count |> SkippedBlocks.first() |> Enum.map(&ImportBlock.perform_later/1)
   end
 
   def perform_later, do: perform_later(1)
+
   def perform_later(count) do
     Exq.enqueue(Exq.Enqueuer, "default", __MODULE__, [count])
   end

lib/explorer/workers/refresh_balance.ex

@@ -8,8 +8,8 @@ defmodule Explorer.Workers.RefreshBalance do
   alias Explorer.Debit
   alias Explorer.Repo
 
-  def perform("credit"), do: unless refreshing("credits"), do: Credit.refresh()
-  def perform("debit"), do: unless refreshing("debits"), do: Debit.refresh()
+  def perform("credit"), do: unless(refreshing("credits"), do: Credit.refresh())
+  def perform("debit"), do: unless(refreshing("debits"), do: Debit.refresh())
 
   def perform do
     perform_later(["credit"])
@@ -22,11 +22,10 @@ defmodule Explorer.Workers.RefreshBalance do
 
   def refreshing(table) do
     query = "REFRESH MATERIALIZED VIEW CONCURRENTLY #{table}%"
-    result = SQL.query!(
-      Repo,
-      "SELECT TRUE FROM pg_stat_activity WHERE query ILIKE '$#{query}'",
-      []
-    )
+
+    result =
+      SQL.query!(Repo, "SELECT TRUE FROM pg_stat_activity WHERE query ILIKE '$#{query}'", [])
+
     Enum.count(result.rows) > 0
   end
 end

lib/explorer_web.ex

@@ -28,7 +28,8 @@ defmodule ExplorerWeb do
 
   def view do
     quote do
-      use Phoenix.View, root: "lib/explorer_web/templates",
+      use Phoenix.View,
+        root: "lib/explorer_web/templates",
         namespace: ExplorerWeb
 
       # Import convenience functions from controllers

lib/explorer_web/channels/user_socket.ex

@@ -5,7 +5,7 @@ defmodule ExplorerWeb.UserSocket do
   # channel "room:*", ExplorerWeb.RoomChannel
 
   ## Transports
-  transport :websocket, Phoenix.Transports.WebSocket, timeout: 45_000
+  transport(:websocket, Phoenix.Transports.WebSocket, timeout: 45_000)
   # transport :longpoll, Phoenix.Transports.LongPoll
 
   # Socket params are passed from the client and can

lib/explorer_web/controllers/address_controller.ex

@@ -9,10 +9,14 @@ defmodule ExplorerWeb.AddressController do
 
   def show(conn, %{"id" => id}) do
     hash = String.downcase(id)
-    query = from address in Address,
+
+    query =
+      from(
+        address in Address,
         where: fragment("lower(?)", address.hash) == ^hash,
         preload: [:credit, :debit],
         limit: 1
+      )
 
     address = Repo.one(query)
     render(conn, "show.html", address: AddressForm.build(address))

lib/explorer_web/controllers/address_transaction_from_controller.ex

@@ -14,11 +14,21 @@ defmodule ExplorerWeb.AddressTransactionFromController do
 
   def index(conn, %{"address_id" => address_id} = params) do
     hash = String.downcase(address_id)
-    address = Repo.one(from address in Address,
+
+    address =
+      Repo.one(
+        from(
+          address in Address,
           where: fragment("lower(?)", address.hash) == ^hash,
-      limit: 1)
+          limit: 1
+        )
+      )
+
     address_id = address.id
-    query = from transaction in Transaction,
+
+    query =
+      from(
+        transaction in Transaction,
         join: block in assoc(transaction, :block),
         join: receipt in assoc(transaction, :receipt),
         join: from_address in assoc(transaction, :from_address),
@@ -26,6 +36,8 @@ defmodule ExplorerWeb.AddressTransactionFromController do
         preload: [:block, :receipt, :to_address, :from_address],
         order_by: [desc: transaction.inserted_at],
         where: from_address.id == ^address_id
+      )
+
     page = Repo.paginate(query, params)
     entries = Enum.map(page.entries, &TransactionForm.build_and_merge/1)
     render(conn, "index.html", transactions: Map.put(page, :entries, entries))

lib/explorer_web/controllers/address_transaction_to_controller.ex

@@ -14,11 +14,21 @@ defmodule ExplorerWeb.AddressTransactionToController do
 
   def index(conn, %{"address_id" => address_id} = params) do
     hash = String.downcase(address_id)
-    address = Repo.one(from address in Address,
+
+    address =
+      Repo.one(
+        from(
+          address in Address,
           where: fragment("lower(?)", address.hash) == ^hash,
-      limit: 1)
+          limit: 1
+        )
+      )
+
     address_id = address.id
-    query = from transaction in Transaction,
+
+    query =
+      from(
+        transaction in Transaction,
         join: block in assoc(transaction, :block),
         join: receipt in assoc(transaction, :receipt),
         join: from_address in assoc(transaction, :from_address),
@@ -26,6 +36,8 @@ defmodule ExplorerWeb.AddressTransactionToController do
         preload: [:block, :receipt, :to_address, :from_address],
         order_by: [desc: transaction.inserted_at],
         where: to_address.id == ^address_id
+      )
+
     page = Repo.paginate(query, params)
     entries = Enum.map(page.entries, &TransactionForm.build_and_merge/1)
     render(conn, "index.html", transactions: Map.put(page, :entries, entries))

lib/explorer_web/controllers/block_controller.ex

@@ -8,18 +8,24 @@ defmodule ExplorerWeb.BlockController do
   alias Explorer.Repo.NewRelic, as: Repo
 
   def index(conn, params) do
-    blocks = from block in Block,
+    blocks =
+      from(
+        block in Block,
         order_by: [desc: block.number],
         preload: :transactions
+      )
 
     render(conn, "index.html", blocks: Repo.paginate(blocks, params))
   end
 
   def show(conn, %{"id" => number}) do
-    block = Block
+    block =
+      Block
       |> where(number: ^number)
-      |> first |> Repo.one
-      |> BlockForm.build
+      |> first
+      |> Repo.one()
+      |> BlockForm.build()
+
     render(conn, "show.html", block: block)
   end
 end

lib/explorer_web/controllers/block_transaction_controller.ex

@@ -8,7 +8,9 @@ defmodule ExplorerWeb.BlockTransactionController do
   alias Explorer.TransactionForm
 
   def index(conn, %{"block_id" => block_number} = params) do
-    query = from transaction in Transaction,
+    query =
+      from(
+        transaction in Transaction,
         join: block in assoc(transaction, :block),
         join: receipt in assoc(transaction, :receipt),
         join: from_address in assoc(transaction, :from_address),
@@ -16,6 +18,8 @@ defmodule ExplorerWeb.BlockTransactionController do
         preload: [:block, :receipt, :to_address, :from_address],
         order_by: [desc: transaction.inserted_at],
         where: block.number == ^block_number
+      )
+
     page = Repo.paginate(query, params)
     entries = Enum.map(page.entries, &TransactionForm.build_and_merge/1)
     render(conn, "index.html", transactions: Map.put(page, :entries, entries))

lib/explorer_web/controllers/chain_controller.ex

@@ -15,22 +15,30 @@ defmodule ExplorerWeb.ChainController do
         |> put_status(:not_found)
         |> put_view(ExplorerWeb.ErrorView)
         |> render("404.html")
+
       item ->
         redirect_search_results(conn, item)
     end
   end
 
   defp redirect_search_results(conn, %Explorer.Block{} = item) do
-    redirect conn, to: block_path(conn, :show, Gettext.get_locale, item.number)
+    redirect(conn, to: block_path(conn, :show, Gettext.get_locale(), item.number))
   end
 
   defp redirect_search_results(conn, %Explorer.Transaction{} = item) do
-    redirect conn, to: transaction_path(
-      conn, :show, Gettext.get_locale, item.hash
+    redirect(
+      conn,
+      to:
+        transaction_path(
+          conn,
+          :show,
+          Gettext.get_locale(),
+          item.hash
+        )
     )
   end
 
   defp redirect_search_results(conn, %Explorer.Address{} = item) do
-    redirect conn, to: address_path(conn, :show, Gettext.get_locale, item.hash)
+    redirect(conn, to: address_path(conn, :show, Gettext.get_locale(), item.hash))
   end
 end

lib/explorer_web/controllers/internal_transaction_controller.ex

@@ -8,8 +8,10 @@ defmodule ExplorerWeb.InternalTransactionController do
 
     internal_transactions = Transaction.internal_transactions(hash)
 
-    render(conn,
+    render(
+      conn,
       internal_transactions: internal_transactions,
-           transaction_hash: hash)
+      transaction_hash: hash
+    )
   end
 end

lib/explorer_web/controllers/pending_transaction_controller.ex

@@ -8,7 +8,9 @@ defmodule ExplorerWeb.PendingTransactionController do
   alias Explorer.PendingTransactionForm
 
   def index(conn, %{"last_seen" => last_seen} = _) do
-    query = from transaction in Transaction,
+    query =
+      from(
+        transaction in Transaction,
         left_join: receipt in assoc(transaction, :receipt),
         inner_join: to_address in assoc(transaction, :to_address),
         inner_join: from_address in assoc(transaction, :from_address),
@@ -17,26 +19,41 @@ defmodule ExplorerWeb.PendingTransactionController do
         where: transaction.id < ^last_seen,
         order_by: [desc: transaction.id],
         limit: 10
-    total_query = from transaction in Transaction,
+      )
+
+    total_query =
+      from(
+        transaction in Transaction,
         select: fragment("count(?)", transaction.id),
         left_join: receipt in assoc(transaction, :receipt),
         where: is_nil(receipt.transaction_id)
+      )
+
     entries = Repo.all(query)
-    last = List.last(entries) || Transaction.null
-    render(conn, "index.html", transactions: %{
+    last = List.last(entries) || Transaction.null()
+
+    render(
+      conn,
+      "index.html",
+      transactions: %{
         entries: entries |> Enum.map(&PendingTransactionForm.build/1),
         total_entries: Repo.one(total_query),
         last_seen: last.id
-    })
+      }
+    )
   end
 
   def index(conn, params) do
-    query = from transaction in Transaction,
+    query =
+      from(
+        transaction in Transaction,
         select: transaction.id,
         left_join: receipt in assoc(transaction, :receipt),
         where: is_nil(receipt.transaction_id),
         order_by: [desc: transaction.id],
         limit: 1
+      )
+
     first_id = Repo.one(query) || 0
     last_seen = Integer.to_string(first_id + 1)
     index(conn, Map.put(params, "last_seen", last_seen))

lib/explorer_web/controllers/transaction_controller.ex

@@ -8,38 +8,59 @@ defmodule ExplorerWeb.TransactionController do
   alias Explorer.TransactionForm
 
   def index(conn, %{"last_seen" => last_seen} = _) do
-    query = from transaction in Transaction,
+    query =
+      from(
+        transaction in Transaction,
         where: transaction.id < ^last_seen,
         inner_join: receipt in assoc(transaction, :receipt),
         inner_join: block in assoc(transaction, :block),
         inner_join: to_address in assoc(transaction, :to_address),
         inner_join: from_address in assoc(transaction, :from_address),
         preload: [
-        block: block, receipt: receipt,
-        to_address: to_address, from_address: from_address],
+          block: block,
+          receipt: receipt,
+          to_address: to_address,
+          from_address: from_address
+        ],
         order_by: [desc: transaction.id],
         limit: 10
-    total_query = from transaction in Transaction,
+      )
+
+    total_query =
+      from(
+        transaction in Transaction,
         select: fragment("count(?)", transaction.id),
         inner_join: receipt in assoc(transaction, :receipt),
         inner_join: block in assoc(transaction, :block)
+      )
+
     entries =
       query
       |> Repo.all()
       |> Enum.map(&TransactionForm.build_and_merge/1)
-    last = List.last(entries) || Transaction.null
-    render(conn, "index.html", transactions: %{
+
+    last = List.last(entries) || Transaction.null()
+
+    render(
+      conn,
+      "index.html",
+      transactions: %{
         entries: entries,
         total_entries: Repo.one(total_query),
         last_seen: last.id
-    })
+      }
+    )
   end
 
   def index(conn, params) do
-    query = from t in Transaction,
+    query =
+      from(
+        t in Transaction,
         select: t.id,
         order_by: [desc: t.id],
         limit: 1
+      )
+
     first_id = Repo.one(query) || 0
     last_seen = Integer.to_string(first_id + 1)
     index(conn, Map.put(params, "last_seen", last_seen))
@@ -47,16 +68,23 @@ defmodule ExplorerWeb.TransactionController do
 
   def show(conn, params) do
     hash = String.downcase(params["id"])
-    query = from transaction in Transaction,
+
+    query =
+      from(
+        transaction in Transaction,
         left_join: receipt in assoc(transaction, :receipt),
         left_join: block in assoc(transaction, :block),
         inner_join: to_address in assoc(transaction, :to_address),
         inner_join: from_address in assoc(transaction, :from_address),
         preload: [
-        block: block, receipt: receipt,
-        to_address: to_address, from_address: from_address],
+          block: block,
+          receipt: receipt,
+          to_address: to_address,
+          from_address: from_address
+        ],
         where: fragment("lower(?)", transaction.hash) == ^hash,
         limit: 1
+      )
 
     transaction = query |> Repo.one() |> TransactionForm.build_and_merge()
 

lib/explorer_web/controllers/transaction_log_controller.ex

@@ -8,10 +8,15 @@ defmodule ExplorerWeb.TransactionLogController do
 
   def index(conn, %{"transaction_id" => transaction_id}) do
     hash = String.downcase(transaction_id)
-    logs = from log in Log,
+
+    logs =
+      from(
+        log in Log,
         join: transaction in assoc(log, :transaction),
         preload: [:address],
         where: fragment("lower(?)", transaction.hash) == ^hash
+      )
+
     render(conn, "index.html", logs: Repo.paginate(logs), transaction_hash: hash)
   end
 end

lib/explorer_web/endpoint.ex

@@ -2,47 +2,55 @@ defmodule ExplorerWeb.Endpoint do
   use Phoenix.Endpoint, otp_app: :explorer
 
   if Application.get_env(:explorer, :sql_sandbox) do
-    plug Phoenix.Ecto.SQL.Sandbox
+    plug(Phoenix.Ecto.SQL.Sandbox)
   end
 
-  socket "/socket", ExplorerWeb.UserSocket
+  socket("/socket", ExplorerWeb.UserSocket)
 
   # Serve at "/" the static files from "priv/static" directory.
   #
   # You should set gzip to true if you are running phoenix.digest
   # when deploying your static files in production.
-  plug Plug.Static,
-    at: "/", from: :explorer, gzip: false,
+  plug(
+    Plug.Static,
+    at: "/",
+    from: :explorer,
+    gzip: false,
     only: ~w(css fonts images js favicon.ico robots.txt)
+  )
 
   # Code reloading can be explicitly enabled under the
   # :code_reloader configuration of your endpoint.
   if code_reloading? do
-    socket "/phoenix/live_reload/socket", Phoenix.LiveReloader.Socket
-    plug Phoenix.LiveReloader
-    plug Phoenix.CodeReloader
+    socket("/phoenix/live_reload/socket", Phoenix.LiveReloader.Socket)
+    plug(Phoenix.LiveReloader)
+    plug(Phoenix.CodeReloader)
   end
 
-  plug Plug.RequestId
-  plug Plug.Logger
+  plug(Plug.RequestId)
+  plug(Plug.Logger)
 
-  plug Plug.Parsers,
+  plug(
+    Plug.Parsers,
     parsers: [:urlencoded, :multipart, :json],
     pass: ["*/*"],
     json_decoder: Poison
+  )
 
-  plug Plug.MethodOverride
-  plug Plug.Head
+  plug(Plug.MethodOverride)
+  plug(Plug.Head)
 
   # The session will be stored in the cookie and signed,
   # this means its contents can be read but not tampered with.
   # Set :encryption_salt if you would also like to encrypt it.
-  plug Plug.Session,
+  plug(
+    Plug.Session,
     store: :cookie,
     key: "_explorer_key",
     signing_salt: "iC2ksJHS"
+  )
 
-  plug ExplorerWeb.Router
+  plug(ExplorerWeb.Router)
 
   @doc """
   Callback invoked for dynamically configuring the endpoint.

lib/explorer_web/gettext.ex

@@ -22,9 +22,10 @@ defmodule ExplorerWeb.Gettext do
   """
   use Gettext, otp_app: :explorer
 
-  @dialyzer [{:nowarn_function, 'MACRO-dgettext': 3},
-             {:nowarn_function, 'MACRO-dgettext': 4},
-             {:nowarn_function, 'MACRO-dngettext': 5},
-             {:nowarn_function, 'MACRO-dngettext': 6},
+  @dialyzer [
+    {:nowarn_function, "MACRO-dgettext": 3},
+    {:nowarn_function, "MACRO-dgettext": 4},
+    {:nowarn_function, "MACRO-dngettext": 5},
+    {:nowarn_function, "MACRO-dngettext": 6}
   ]
 end

lib/explorer_web/router.ex

@@ -2,11 +2,12 @@ defmodule ExplorerWeb.Router do
   use ExplorerWeb, :router
 
   pipeline :browser do
-    plug :accepts, ["html"]
-    plug :fetch_session
-    plug :fetch_flash
-    plug :protect_from_forgery
-    plug :put_secure_browser_headers, %{
+    plug(:accepts, ["html"])
+    plug(:fetch_session)
+    plug(:fetch_flash)
+    plug(:protect_from_forgery)
+
+    plug(:put_secure_browser_headers, %{
       "content-security-policy" => "\
         default-src 'self';\
         script-src 'self' 'unsafe-inline' 'unsafe-eval';\
@@ -14,67 +15,84 @@ defmodule ExplorerWeb.Router do
         img-src 'self' 'unsafe-inline' 'unsafe-eval' data:;\
         font-src 'self' 'unsafe-inline' 'unsafe-eval' data:;\
       "
-    }
+    })
   end
 
   pipeline :set_locale do
-    plug SetLocale, gettext: ExplorerWeb.Gettext, default_locale: "en"
+    plug(SetLocale, gettext: ExplorerWeb.Gettext, default_locale: "en")
   end
 
   pipeline :exq do
-    plug :accepts, ["html"]
-    plug :fetch_session
-    plug :fetch_flash
-    plug :put_secure_browser_headers, %{
+    plug(:accepts, ["html"])
+    plug(:fetch_session)
+    plug(:fetch_flash)
+
+    plug(:put_secure_browser_headers, %{
       "content-security-policy" => "\
         default-src 'self';\
         script-src 'self' 'unsafe-inline';\
         font-src 'self' fonts.gstatic.com;\
         style-src 'self' 'unsafe-inline' fonts.googleapis.com;\
       "
-    }
-    plug ExqUi.RouterPlug, namespace: "exq"
+    })
+
+    plug(ExqUi.RouterPlug, namespace: "exq")
   end
 
   pipeline :jasmine do
-    if Mix.env != :prod, do: plug Jasmine, js_files: ["js/test.js"], css_files: ["css/test.css"]
+    if Mix.env() != :prod,
+      do: plug(Jasmine, js_files: ["js/test.js"], css_files: ["css/test.css"])
   end
 
   pipeline :api do
-    plug :accepts, ["json"]
+    plug(:accepts, ["json"])
   end
 
   scope "/exq", ExqUi do
-    pipe_through :exq
-    forward "/", RouterPlug.Router, :index
+    pipe_through(:exq)
+    forward("/", RouterPlug.Router, :index)
   end
 
   scope "/", ExplorerWeb do
-    pipe_through :browser
-    pipe_through :jasmine
-    pipe_through :set_locale
-    resources "/", ChainController, only: [:show], singleton: true, as: :chain
+    pipe_through(:browser)
+    pipe_through(:jasmine)
+    pipe_through(:set_locale)
+    resources("/", ChainController, only: [:show], singleton: true, as: :chain)
   end
 
   scope "/:locale", ExplorerWeb do
-    pipe_through :browser
-    pipe_through :jasmine
-    pipe_through :set_locale
-    resources "/", ChainController, only: [:show], singleton: true, as: :chain
+    pipe_through(:browser)
+    pipe_through(:jasmine)
+    pipe_through(:set_locale)
+    resources("/", ChainController, only: [:show], singleton: true, as: :chain)
+
     resources "/blocks", BlockController, only: [:index, :show] do
-      resources "/transactions", BlockTransactionController, only: [:index], as: :transaction
+      resources("/transactions", BlockTransactionController, only: [:index], as: :transaction)
     end
-    resources "/pending_transactions", PendingTransactionController, only: [:index]
+
+    resources("/pending_transactions", PendingTransactionController, only: [:index])
+
     resources "/transactions", TransactionController, only: [:index, :show] do
-      resources "/logs", TransactionLogController, only: [:index], as: :log
-      resources "/internal", InternalTransactionController, only: [:index]
+      resources("/logs", TransactionLogController, only: [:index], as: :log)
+      resources("/internal", InternalTransactionController, only: [:index])
     end
+
     resources "/addresses", AddressController, only: [:show] do
-      resources "/transactions", AddressTransactionToController,
-        only: [:index], as: :transaction_to
-      resources "/transactions_from", AddressTransactionFromController,
-        only: [:index], as: :transaction_from
+      resources(
+        "/transactions",
+        AddressTransactionToController,
+        only: [:index],
+        as: :transaction_to
+      )
+
+      resources(
+        "/transactions_from",
+        AddressTransactionFromController,
+        only: [:index],
+        as: :transaction_from
+      )
     end
-    get "/search", ChainController, :search
+
+    get("/search", ChainController, :search)
   end
 end

lib/explorer_web/views/error_helpers.ex

@@ -9,8 +9,8 @@ defmodule ExplorerWeb.ErrorHelpers do
   Generates tag for inlined form input errors.
   """
   def error_tag(form, field) do
-    Enum.map(Keyword.get_values(form.errors, field), fn (error) ->
-      content_tag :span, translate_error(error), class: "help-block"
+    Enum.map(Keyword.get_values(form.errors, field), fn error ->
+      content_tag(:span, translate_error(error), class: "help-block")
     end)
   end
 

lib/explorer_web/views/error_view.ex

@@ -12,6 +12,6 @@ defmodule ExplorerWeb.ErrorView do
   # In case no render clause matches or no
   # template is found, let's render it as 500
   def template_not_found(_template, assigns) do
-    render "500.html", assigns
+    render("500.html", assigns)
   end
 end

lib/explorer_web/views/transaction_view.ex

@@ -6,6 +6,6 @@ defmodule ExplorerWeb.TransactionView do
 
   def format_gas_limit(gas) do
     gas
-    |> Number.to_string!
+    |> Number.to_string!()
   end
 end

lib/mix/tasks/exq.start.ex

@@ -7,6 +7,7 @@ defmodule Mix.Tasks.Exq.Start do
   def run(["scheduler"]) do
     [:postgrex, :ecto, :ethereumex, :tzdata]
     |> Enum.each(&Application.ensure_all_started/1)
+
     Repo.start_link()
     Exq.start_link(mode: :enqueuer)
     Scheduler.start_link()
@@ -16,6 +17,7 @@ defmodule Mix.Tasks.Exq.Start do
   def run(_) do
     [:postgrex, :ecto, :ethereumex, :tzdata]
     |> Enum.each(&Application.ensure_all_started/1)
+
     Repo.start_link()
     Exq.start_link(mode: :default)
     :timer.sleep(:infinity)

lib/mix/tasks/scrape.blocks.ex

@@ -6,9 +6,11 @@ defmodule Mix.Tasks.Scrape.Blocks do
   alias Explorer.BlockImporter
 
   def run([]), do: run(1)
+
   def run(count) do
     [:postgrex, :ecto, :ethereumex, :tzdata]
     |> Enum.each(&Application.ensure_all_started/1)
+
     Repo.start_link()
     Exq.start_link(mode: :enqueuer)
 

lib/mix/tasks/scrape.receipts.ex

@@ -7,9 +7,11 @@ defmodule Mix.Tasks.Scrape.Receipts do
   alias Explorer.ReceiptImporter
 
   def run([]), do: run(1)
+
   def run(count) do
     [:postgrex, :ecto, :ethereumex, :tzdata]
     |> Enum.each(&Application.ensure_all_started/1)
+
     Repo.start_link()
 
     "#{count}"

mix.exs

@@ -6,9 +6,9 @@ defmodule Explorer.Mixfile do
       app: :explorer,
       version: "0.0.1",
       elixir: "~> 1.4",
-      elixirc_paths: elixirc_paths(Mix.env),
-      compilers: [:phoenix, :gettext | Mix.compilers],
-      start_permanent: Mix.env == :prod,
+      elixirc_paths: elixirc_paths(Mix.env()),
+      compilers: [:phoenix, :gettext | Mix.compilers()],
+      start_permanent: Mix.env() == :prod,
       package: package(),
       aliases: aliases(),
       deps: deps(),
@@ -26,7 +26,7 @@ defmodule Explorer.Mixfile do
   def application do
     [
       mod: {Explorer.Application, []},
-      extra_applications: extra_applications(Mix.env)
+      extra_applications: extra_applications(Mix.env())
     ]
   end
 
@@ -36,12 +36,25 @@ defmodule Explorer.Mixfile do
   defp elixirc_paths, do: ["lib"]
 
   # Specifies extra applications to start per environment
-  defp extra_applications(:prod), do: [:phoenix_pubsub_redis, :exq, :exq_ui | extra_applications()]
+  defp extra_applications(:prod),
+    do: [:phoenix_pubsub_redis, :exq, :exq_ui | extra_applications()]
+
   defp extra_applications(:dev), do: [:exq, :exq_ui | extra_applications()]
   defp extra_applications(_), do: extra_applications()
-  defp extra_applications, do: [
-    :scrivener_ecto, :scrivener_html, :ex_cldr, :ex_jasmine, :ethereumex,
-    :timex, :timex_ecto, :crontab, :set_locale, :logger, :runtime_tools,
+
+  defp extra_applications,
+    do: [
+      :scrivener_ecto,
+      :scrivener_html,
+      :ex_cldr,
+      :ex_jasmine,
+      :ethereumex,
+      :timex,
+      :timex_ecto,
+      :crontab,
+      :set_locale,
+      :logger,
+      :runtime_tools,
       :new_relixir
     ]
 
@@ -80,11 +93,12 @@ defmodule Explorer.Mixfile do
       {:react_phoenix, "~> 0.5"},
       {:scrivener_ecto, "~> 1.0"},
       {:scrivener_html, "~> 1.7"},
-      {:set_locale, github: "minifast/set_locale", branch: "master"}, # Waiting on https://github.com/smeevil/set_locale/pull/9
+      # Waiting on https://github.com/smeevil/set_locale/pull/9
+      {:set_locale, github: "minifast/set_locale", branch: "master"},
       {:sobelow, ">= 0.0.0", only: [:dev, :test], runtime: false},
       {:timex, "~> 3.1.24"},
       {:timex_ecto, "~> 3.2.1"},
-      {:wallaby, "~> 0.19.2", only: [:test], runtime: false},
+      {:wallaby, "~> 0.19.2", only: [:test], runtime: false}
     ]
   end
 
@@ -98,7 +112,7 @@ defmodule Explorer.Mixfile do
     [
       "ecto.setup": ["ecto.create", "ecto.migrate", "run priv/repo/seeds.exs"],
       "ecto.reset": ["ecto.drop", "ecto.setup"],
-      "test": ["ecto.create --quiet", "ecto.migrate", "test"]
+      test: ["ecto.create --quiet", "ecto.migrate", "test"]
     ]
   end
 

test/explorer/address_test.exs

@@ -18,14 +18,14 @@ defmodule Explorer.AddressTest do
   describe "find_or_create_by_hash/1" do
     test "that it creates a new address when one does not exist" do
       Address.find_or_create_by_hash("0xFreshPrince")
-      last_address = Address |> order_by(desc: :inserted_at) |> Repo.one
+      last_address = Address |> order_by(desc: :inserted_at) |> Repo.one()
       assert last_address.hash == "0xfreshprince"
     end
 
     test "when the address already exists it doesn't insert a new address" do
       insert(:address, %{hash: "bigmouthbillybass"})
       Address.find_or_create_by_hash("bigmouthbillybass")
-      number_of_addresses = Address |> Repo.all |> length
+      number_of_addresses = Address |> Repo.all() |> length
       assert number_of_addresses == 1
     end
 

test/explorer/block_test.exs

@@ -17,14 +17,20 @@ defmodule Explorer.BlockTest do
 
     test "with duplicate information" do
       insert(:block, hash: "0x0")
-      {:error, changeset} = %Block{} |> Block.changeset(params_for(:block, hash: "0x0")) |> Repo.insert
+
+      {:error, changeset} =
+        %Block{} |> Block.changeset(params_for(:block, hash: "0x0")) |> Repo.insert()
+
       refute changeset.valid?
       assert changeset.errors == [hash: {"has already been taken", []}]
     end
 
     test "rejects duplicate blocks with mixed case" do
       insert(:block, hash: "0xa")
-      {:error, changeset} = %Block{} |> Block.changeset(params_for(:block, hash: "0xA")) |> Repo.insert
+
+      {:error, changeset} =
+        %Block{} |> Block.changeset(params_for(:block, hash: "0xA")) |> Repo.insert()
+
       refute changeset.valid?
       assert changeset.errors == [hash: {"has already been taken", []}]
     end
@@ -32,7 +38,7 @@ defmodule Explorer.BlockTest do
 
   describe "null/0" do
     test "returns a block with a number of 0" do
-      assert Block.null.number === -1
+      assert Block.null().number === -1
     end
   end
 
@@ -40,7 +46,9 @@ defmodule Explorer.BlockTest do
     test "returns the blocks sorted by number" do
       insert(:block, number: 1)
       insert(:block, number: 5)
-      assert Block |> Block.latest |> Repo.all == Block |> order_by(desc: :number) |> Repo.all
+
+      assert Block |> Block.latest() |> Repo.all() ==
+               Block |> order_by(desc: :number) |> Repo.all()
     end
   end
 end

test/explorer/chain_test.exs

@@ -30,6 +30,7 @@ defmodule Explorer.ChainTest do
       insert(:block, timestamp: time)
       insert(:block, timestamp: next_time)
       chain = Chain.fetch()
+
       assert chain.average_time == %Duration{
                seconds: 5,
                megaseconds: 0,
@@ -89,10 +90,12 @@ defmodule Explorer.ChainTest do
 
     test "returns the last five transactions with blocks" do
       block = insert(:block)
+
       insert_list(6, :transaction)
-      |> Enum.map(fn (transaction) ->
+      |> Enum.map(fn transaction ->
         insert(:block_transaction, block: block, transaction: transaction)
       end)
+
       chain = Chain.fetch()
       assert chain.transactions |> Enum.count() == 5
     end

test/explorer/credit_test.exs

@@ -10,7 +10,7 @@ defmodule Explorer.CreditTest do
 
     test "returns nothing when an address has no transactions" do
       insert(:address)
-      Credit.refresh
+      Credit.refresh()
       assert Repo.one(Credit) == nil
     end
 
@@ -21,9 +21,9 @@ defmodule Explorer.CreditTest do
       insert(:receipt, transaction: transaction, status: 1)
       insert(:from_address, transaction: transaction, address: sender)
       insert(:to_address, transaction: transaction, address: receipient)
-      Credit.refresh
-      credits = Credit |> Repo.all
-      assert credits |> Enum.count == 1
+      Credit.refresh()
+      credits = Credit |> Repo.all()
+      assert credits |> Enum.count() == 1
     end
 
     test "returns no credits to the sender" do
@@ -34,8 +34,8 @@ defmodule Explorer.CreditTest do
       insert(:from_address, transaction: transaction, address: sender)
       insert(:to_address, transaction: transaction, address: receipient)
       address_id = sender.id
-      Credit.refresh
-      credit = Credit |> where(address_id: ^address_id) |> Repo.one
+      Credit.refresh()
+      credit = Credit |> where(address_id: ^address_id) |> Repo.one()
       assert credit == nil
     end
 
@@ -47,8 +47,8 @@ defmodule Explorer.CreditTest do
       insert(:from_address, transaction: transaction, address: sender)
       insert(:to_address, transaction: transaction, address: receipient)
       address_id = receipient.id
-      Credit.refresh
-      credit = Credit |> where(address_id: ^address_id) |> Repo.one
+      Credit.refresh()
+      credit = Credit |> where(address_id: ^address_id) |> Repo.one()
       assert credit.value == Decimal.new(21)
     end
   end

test/explorer/debit_test.exs

@@ -10,7 +10,7 @@ defmodule Explorer.DebitTest do
 
     test "returns nothing when an address has no transactions" do
       insert(:address)
-      Debit.refresh
+      Debit.refresh()
       assert Repo.one(Debit) == nil
     end
 
@@ -21,9 +21,9 @@ defmodule Explorer.DebitTest do
       insert(:receipt, transaction: transaction, status: 1)
       insert(:from_address, transaction: transaction, address: sender)
       insert(:to_address, transaction: transaction, address: receipient)
-      Debit.refresh
-      debits = Debit |> Repo.all
-      assert debits |> Enum.count == 1
+      Debit.refresh()
+      debits = Debit |> Repo.all()
+      assert debits |> Enum.count() == 1
     end
 
     test "returns a debit against the sender" do
@@ -34,8 +34,8 @@ defmodule Explorer.DebitTest do
       insert(:from_address, transaction: transaction, address: sender)
       insert(:to_address, transaction: transaction, address: receipient)
       address_id = sender.id
-      Debit.refresh
-      debit = Debit |> where(address_id: ^address_id) |> Repo.one
+      Debit.refresh()
+      debit = Debit |> where(address_id: ^address_id) |> Repo.one()
       assert debit.value == Decimal.new(21)
     end
 
@@ -47,8 +47,8 @@ defmodule Explorer.DebitTest do
       insert(:from_address, transaction: transaction, address: sender)
       insert(:to_address, transaction: transaction, address: receipient)
       address_id = receipient.id
-      Debit.refresh
-      debit = Debit |> where(address_id: ^address_id) |> Repo.one
+      Debit.refresh()
+      debit = Debit |> where(address_id: ^address_id) |> Repo.one()
       assert debit == nil
     end
   end

test/explorer/forms/address_form_test.exs

@@ -16,10 +16,11 @@ defmodule Explorer.AddressFormTest do
       insert(:from_address, address: sender, transaction: transaction)
       insert(:to_address, address: recipient, transaction: transaction)
 
-      Credit.refresh
-      Debit.refresh
+      Credit.refresh()
+      Debit.refresh()
 
-      assert AddressForm.build(Repo.preload(recipient, [:debit, :credit])).balance == Decimal.new(10)
+      assert AddressForm.build(Repo.preload(recipient, [:debit, :credit])).balance ==
+               Decimal.new(10)
     end
 
     test "returns a zero balance when the address does not have balances" do

test/explorer/forms/block_form_test.exs

@@ -16,7 +16,7 @@ defmodule Explorer.BlockFormTest do
     end
 
     test "that it returns a block's age" do
-      block = insert(:block, timestamp: Timex.now |> Timex.shift(hours: -1))
+      block = insert(:block, timestamp: Timex.now() |> Timex.shift(hours: -1))
       assert BlockForm.build(block).age == "1 hour ago"
     end
 

test/explorer/forms/pending_transaction_form_test.exs

@@ -11,15 +11,21 @@ defmodule Explorer.PendingTransactionFormTest do
       transaction = insert(:transaction, inserted_at: time, updated_at: time)
       insert(:to_address, address: to_address, transaction: transaction)
       insert(:from_address, address: from_address, transaction: transaction)
-      form = PendingTransactionForm.build(transaction |> Repo.preload([:to_address, :from_address]))
-      assert(form == Map.merge(transaction |> Repo.preload([:to_address, :from_address]), %{
+
+      form =
+        PendingTransactionForm.build(transaction |> Repo.preload([:to_address, :from_address]))
+
+      assert(
+        form ==
+          Map.merge(transaction |> Repo.preload([:to_address, :from_address]), %{
             to_address_hash: "0xcafe",
             from_address_hash: "0xbee5",
             first_seen: time |> Timex.from_now(),
             last_seen: time |> Timex.from_now(),
             status: :pending,
             formatted_status: "Pending"
-      }))
+          })
+      )
     end
   end
 end

test/explorer/forms/transaction_form_test.exs

@@ -6,24 +6,34 @@ defmodule Explorer.TransactionFormTest do
   describe "build/1" do
     test "returns a successful transaction when there is a successful receipt" do
       insert(:block, number: 24)
-      time = Timex.now |> Timex.shift(hours: -2)
-      block = insert(:block, %{
+      time = Timex.now() |> Timex.shift(hours: -2)
+
+      block =
+        insert(:block, %{
           number: 1,
           gas_used: 99523,
-        timestamp: time,
+          timestamp: time
         })
+
       transaction =
-        insert(:transaction,
+        insert(
+          :transaction,
           inserted_at: Timex.parse!("1970-01-01T00:00:18-00:00", "{ISO:Extended}"),
-          updated_at: Timex.parse!("1980-01-01T00:00:18-00:00", "{ISO:Extended}"))
+          updated_at: Timex.parse!("1980-01-01T00:00:18-00:00", "{ISO:Extended}")
+        )
         |> with_block(block)
         |> with_addresses(%{to: "0xsleepypuppy", from: "0xilovefrogs"})
+
       insert(:receipt, status: 1, transaction: transaction)
 
-      form = transaction |> Repo.preload([:block, :to_address, :from_address, :receipt]) |> TransactionForm.build()
+      form =
+        transaction |> Repo.preload([:block, :to_address, :from_address, :receipt])
+        |> TransactionForm.build()
+
       formatted_timestamp = block.timestamp |> Timex.format!("%b-%d-%Y %H:%M:%S %p %Z", :strftime)
 
-      assert(form == %{
+      assert(
+        form == %{
           block_number: 1,
           age: "2 hours ago",
           formatted_age: "2 hours ago (#{formatted_timestamp})",
@@ -35,31 +45,42 @@ defmodule Explorer.TransactionFormTest do
           status: :success,
           formatted_status: "Success",
           first_seen: "48 years ago",
-        last_seen: "38 years ago",
-      })
+          last_seen: "38 years ago"
+        }
+      )
     end
 
     test "returns a failed transaction when there is a failed receipt" do
       insert(:block, number: 24)
-      time = Timex.now |> Timex.shift(hours: -2)
-      block = insert(:block, %{
+      time = Timex.now() |> Timex.shift(hours: -2)
+
+      block =
+        insert(:block, %{
           number: 1,
           gas_used: 99523,
-        timestamp: time,
+          timestamp: time
         })
+
       transaction =
-        insert(:transaction,
+        insert(
+          :transaction,
           gas: 155,
           inserted_at: Timex.parse!("1970-01-01T00:00:18-00:00", "{ISO:Extended}"),
-          updated_at: Timex.parse!("1980-01-01T00:00:18-00:00", "{ISO:Extended}"))
+          updated_at: Timex.parse!("1980-01-01T00:00:18-00:00", "{ISO:Extended}")
+        )
         |> with_block(block)
         |> with_addresses(%{to: "0xsleepypuppy", from: "0xilovefrogs"})
+
       insert(:receipt, status: 0, gas_used: 100, transaction: transaction)
 
-      form = transaction |> Repo.preload([:block, :to_address, :from_address, :receipt]) |> TransactionForm.build()
+      form =
+        transaction |> Repo.preload([:block, :to_address, :from_address, :receipt])
+        |> TransactionForm.build()
+
       formatted_timestamp = block.timestamp |> Timex.format!("%b-%d-%Y %H:%M:%S %p %Z", :strftime)
 
-      assert(form == %{
+      assert(
+        form == %{
           block_number: 1,
           age: "2 hours ago",
           formatted_age: "2 hours ago (#{formatted_timestamp})",
@@ -71,31 +92,42 @@ defmodule Explorer.TransactionFormTest do
           status: :failed,
           formatted_status: "Failed",
           first_seen: "48 years ago",
-        last_seen: "38 years ago",
-      })
+          last_seen: "38 years ago"
+        }
+      )
     end
 
     test "returns a out of gas transaction when the gas matches the gas used" do
       insert(:block, number: 24)
-      time = Timex.now |> Timex.shift(hours: -2)
-      block = insert(:block, %{
+      time = Timex.now() |> Timex.shift(hours: -2)
+
+      block =
+        insert(:block, %{
           number: 1,
           gas_used: 99523,
-        timestamp: time,
+          timestamp: time
         })
+
       transaction =
-        insert(:transaction,
+        insert(
+          :transaction,
           gas: 555,
           inserted_at: Timex.parse!("1970-01-01T00:00:18-00:00", "{ISO:Extended}"),
-          updated_at: Timex.parse!("1980-01-01T00:00:18-00:00", "{ISO:Extended}"))
+          updated_at: Timex.parse!("1980-01-01T00:00:18-00:00", "{ISO:Extended}")
+        )
         |> with_block(block)
         |> with_addresses(%{to: "0xsleepypuppy", from: "0xilovefrogs"})
+
       insert(:receipt, status: 0, gas_used: 555, transaction: transaction)
 
-      form = transaction |> Repo.preload([:block, :to_address, :from_address, :receipt]) |> TransactionForm.build()
+      form =
+        transaction |> Repo.preload([:block, :to_address, :from_address, :receipt])
+        |> TransactionForm.build()
+
       formatted_timestamp = block.timestamp |> Timex.format!("%b-%d-%Y %H:%M:%S %p %Z", :strftime)
 
-      assert(form == %{
+      assert(
+        form == %{
           block_number: 1,
           age: "2 hours ago",
           formatted_age: "2 hours ago (#{formatted_timestamp})",
@@ -107,29 +139,37 @@ defmodule Explorer.TransactionFormTest do
           status: :out_of_gas,
           formatted_status: "Out of Gas",
           first_seen: "48 years ago",
-        last_seen: "38 years ago",
-      })
+          last_seen: "38 years ago"
+        }
+      )
     end
 
     test "returns a pending transaction when there is no receipt" do
       insert(:block, number: 24)
-      time = Timex.now |> Timex.shift(hours: -2)
-      block = insert(:block, %{
+      time = Timex.now() |> Timex.shift(hours: -2)
+
+      block =
+        insert(:block, %{
           number: 1,
           gas_used: 99523,
-        timestamp: time,
+          timestamp: time
         })
+
       transaction =
-        insert(:transaction,
+        insert(
+          :transaction,
           inserted_at: Timex.parse!("1970-01-01T00:00:18-00:00", "{ISO:Extended}"),
-          updated_at: Timex.parse!("1980-01-01T00:00:18-00:00", "{ISO:Extended}"))
+          updated_at: Timex.parse!("1980-01-01T00:00:18-00:00", "{ISO:Extended}")
+        )
         |> with_block(block)
         |> with_addresses(%{to: "0xsleepypuppy", from: "0xilovefrogs"})
         |> Repo.preload([:block, :to_address, :from_address, :receipt])
+
       form = TransactionForm.build(transaction)
       formatted_timestamp = block.timestamp |> Timex.format!("%b-%d-%Y %H:%M:%S %p %Z", :strftime)
 
-      assert(form == %{
+      assert(
+        form == %{
           block_number: 1,
           age: "2 hours ago",
           formatted_age: "2 hours ago (#{formatted_timestamp})",
@@ -141,20 +181,25 @@ defmodule Explorer.TransactionFormTest do
           status: :pending,
           formatted_status: "Pending",
           first_seen: "48 years ago",
-        last_seen: "38 years ago",
-      })
+          last_seen: "38 years ago"
+        }
+      )
     end
 
     test "returns a pending transaction when there is no block" do
-      transaction = insert(
+      transaction =
+        insert(
           :transaction,
           inserted_at: Timex.parse!("1970-01-01T00:00:18-00:00", "{ISO:Extended}"),
-        updated_at: Timex.parse!("1980-01-01T00:00:18-00:00", "{ISO:Extended}"))
+          updated_at: Timex.parse!("1980-01-01T00:00:18-00:00", "{ISO:Extended}")
+        )
         |> with_addresses(%{to: "0xchadmuska", from: "0xtonyhawk"})
         |> Repo.preload([:to_address, :from_address])
+
       form = TransactionForm.build(transaction)
 
-      assert(form == %{
+      assert(
+        form == %{
           block_number: "",
           age: "Pending",
           formatted_age: "Pending",
@@ -166,19 +211,24 @@ defmodule Explorer.TransactionFormTest do
           status: :pending,
           formatted_status: "Pending",
           first_seen: "48 years ago",
-        last_seen: "38 years ago",
-      })
+          last_seen: "38 years ago"
+        }
+      )
     end
 
     test "works when there are no addresses" do
-      transaction = insert(
+      transaction =
+        insert(
           :transaction,
           inserted_at: Timex.parse!("1970-01-01T00:00:18-00:00", "{ISO:Extended}"),
-        updated_at: Timex.parse!("1980-01-01T00:00:18-00:00", "{ISO:Extended}"))
+          updated_at: Timex.parse!("1980-01-01T00:00:18-00:00", "{ISO:Extended}")
+        )
         |> Repo.preload([:block, :to_address, :from_address])
+
       form = TransactionForm.build(transaction)
 
-      assert(form == %{
+      assert(
+        form == %{
           block_number: "",
           age: "Pending",
           formatted_age: "Pending",
@@ -190,31 +240,40 @@ defmodule Explorer.TransactionFormTest do
           status: :pending,
           formatted_status: "Pending",
           first_seen: "48 years ago",
-        last_seen: "38 years ago",
-      })
+          last_seen: "38 years ago"
+        }
+      )
     end
   end
 
   describe "build_and_merge/1" do
     test "it returns a merged map of a transaction and its built data" do
       insert(:block, number: 24)
-      time = Timex.now |> Timex.shift(hours: -2)
-      block = insert(:block, %{
+      time = Timex.now() |> Timex.shift(hours: -2)
+
+      block =
+        insert(:block, %{
           number: 1,
           gas_used: 99523,
-        timestamp: time,
+          timestamp: time
         })
+
       transaction =
-        insert(:transaction,
+        insert(
+          :transaction,
           hash: "0xkittenpower",
           inserted_at: Timex.parse!("1970-01-01T00:00:18-00:00", "{ISO:Extended}"),
           updated_at: Timex.parse!("1980-01-01T00:00:18-00:00", "{ISO:Extended}"),
-          gas: 555)
+          gas: 555
+        )
         |> with_block(block)
         |> with_addresses(%{to: "0xsleepypuppy", from: "0xilovefrogs"})
+
       insert(:receipt, status: 0, gas_used: 555, transaction: transaction)
 
-      form = transaction |> Repo.preload([:block, :to_address, :from_address, :receipt]) |> TransactionForm.build_and_merge()
+      form =
+        transaction |> Repo.preload([:block, :to_address, :from_address, :receipt])
+        |> TransactionForm.build_and_merge()
 
       assert form.hash == "0xkittenpower"
       assert form.block_number == 1

test/explorer/importers/block_importer_test.exs

@@ -11,23 +11,35 @@ defmodule Explorer.BlockImporterTest do
   describe "import/1" do
     test "imports and saves a block to the database" do
       use_cassette "block_importer_import_1_saves_the_block" do
-        with_mock ImportTransaction, [perform: fn(_) -> {:ok} end] do
+        with_mock ImportTransaction, perform: fn _ -> {:ok} end do
           BlockImporter.import("0xc4f0d")
           block = Block |> order_by(desc: :inserted_at) |> Repo.one()
 
-          assert block.hash == "0x16cb43ccfb7875c14eb3f03bdc098e4af053160544270594fa429d256cbca64e"
+          assert block.hash ==
+                   "0x16cb43ccfb7875c14eb3f03bdc098e4af053160544270594fa429d256cbca64e"
         end
       end
     end
 
     test "when a block with the same hash is imported it does not update the block" do
       use_cassette "block_importer_import_1_duplicate_block" do
-        with_mock ImportTransaction, [perform: fn(hash) -> insert(:transaction, hash: hash) end] do
-          insert(:block, hash: "0x16cb43ccfb7875c14eb3f03bdc098e4af053160544270594fa429d256cbca64e", gas_limit: 5)
+        with_mock ImportTransaction, perform: fn hash -> insert(:transaction, hash: hash) end do
+          insert(
+            :block,
+            hash: "0x16cb43ccfb7875c14eb3f03bdc098e4af053160544270594fa429d256cbca64e",
+            gas_limit: 5
+          )
+
           BlockImporter.import("0xc4f0d")
-          block = Repo.get_by(Block, hash: "0x16cb43ccfb7875c14eb3f03bdc098e4af053160544270594fa429d256cbca64e")
+
+          block =
+            Repo.get_by(
+              Block,
+              hash: "0x16cb43ccfb7875c14eb3f03bdc098e4af053160544270594fa429d256cbca64e"
+            )
+
           assert block.gas_limit == 5
-          assert Block |> Repo.all |> Enum.count == 1
+          assert Block |> Repo.all() |> Enum.count() == 1
         end
       end
     end
@@ -36,18 +48,18 @@ defmodule Explorer.BlockImporterTest do
   describe "import/1 pending" do
     test "does not create a block" do
       use_cassette "block_importer_import_1_pending" do
-        with_mock ImportTransaction, [perform_later: fn(_) -> {:ok} end] do
+        with_mock ImportTransaction, perform_later: fn _ -> {:ok} end do
           BlockImporter.import("pending")
-          assert Block |> Repo.all |> Enum.count == 0
+          assert Block |> Repo.all() |> Enum.count() == 0
         end
       end
     end
 
     test "when a block with the same hash is imported does not create a block" do
       use_cassette "block_importer_import_1_pending" do
-        with_mock ImportTransaction, [perform_later: fn(_) -> insert(:transaction) end] do
+        with_mock ImportTransaction, perform_later: fn _ -> insert(:transaction) end do
           BlockImporter.import("pending")
-          assert Transaction |> Repo.all |> Enum.count != 0
+          assert Transaction |> Repo.all() |> Enum.count() != 0
         end
       end
     end
@@ -75,7 +87,8 @@ defmodule Explorer.BlockImporterTest do
 
   describe "extract_block/1" do
     test "extracts the block attributes" do
-      extracted_block = BlockImporter.extract_block(%{
+      extracted_block =
+        BlockImporter.extract_block(%{
           "difficulty" => "0xfffffffffffffffffffffffffffffffe",
           "gasLimit" => "0x02",
           "gasUsed" => "0x19522",
@@ -90,25 +103,27 @@ defmodule Explorer.BlockImporterTest do
           "transactions" => []
         })
 
-      assert(extracted_block == %{
-        difficulty: 340282366920938463463374607431768211454,
+      assert(
+        extracted_block == %{
+          difficulty: 340_282_366_920_938_463_463_374_607_431_768_211_454,
           gas_limit: 2,
-        gas_used: 103714,
+          gas_used: 103_714,
           hash: "bananas",
           nonce: "0xfb6e1a62d119228b",
           miner: "0xdb1207770e0a4258d7a4ce49ab037f92564fea85",
-        number: 520955,
+          number: 520_955,
           parent_hash: "0x70029f66ea5a3b2b1ede95079d95a2ab74b649b5b17cdcf6f29b6317e7c7efa6",
           size: 16,
           timestamp: Timex.parse!("1970-01-01T00:00:18-00:00", "{ISO:Extended}"),
-        total_difficulty: 255,
-      })
+          total_difficulty: 255
+        }
+      )
     end
   end
 
   describe "decode_integer_field/1" do
     test "returns the integer value of a hex value" do
-      assert(BlockImporter.decode_integer_field("0x7f2fb") == 520955)
+      assert(BlockImporter.decode_integer_field("0x7f2fb") == 520_955)
     end
   end
 

test/explorer/importers/internal_transaction_importer_test.exs

@@ -7,7 +7,12 @@ defmodule Explorer.InternalTransactionImporterTest do
   describe "import/1" do
     test "imports and saves an internal transaction to the database" do
       use_cassette "internal_transaction_importer_import_1" do
-        transaction = insert(:transaction, hash: "0x051e031f05b3b3a5ff73e1189c36e3e2a41fd1c2d9772b2c75349e22ed4d3f68")
+        transaction =
+          insert(
+            :transaction,
+            hash: "0x051e031f05b3b3a5ff73e1189c36e3e2a41fd1c2d9772b2c75349e22ed4d3f68"
+          )
+
         InternalTransactionImporter.import(transaction.hash)
         internal_transactions = InternalTransaction |> Repo.all()
         assert length(internal_transactions) == 2
@@ -16,18 +21,34 @@ defmodule Explorer.InternalTransactionImporterTest do
 
     test "imports internal transactions with ordered indexes" do
       use_cassette "internal_transaction_importer_import_1" do
-        transaction = insert(:transaction, hash: "0x051e031f05b3b3a5ff73e1189c36e3e2a41fd1c2d9772b2c75349e22ed4d3f68")
+        transaction =
+          insert(
+            :transaction,
+            hash: "0x051e031f05b3b3a5ff73e1189c36e3e2a41fd1c2d9772b2c75349e22ed4d3f68"
+          )
+
         InternalTransactionImporter.import(transaction.hash)
-        last_internal_transaction = InternalTransaction |> order_by(desc: :index) |> limit(1)  |> Repo.one()
+
+        last_internal_transaction =
+          InternalTransaction |> order_by(desc: :index) |> limit(1) |> Repo.one()
+
         assert last_internal_transaction.index == 1
       end
     end
 
     test "imports an internal transaction that creates a contract" do
       use_cassette "internal_transaction_importer_import_1_with_contract_creation" do
-        transaction = insert(:transaction, hash: "0x27d64b8e8564d2852c88767e967b88405c99341509cd3a3504fd67a65277116d")
+        transaction =
+          insert(
+            :transaction,
+            hash: "0x27d64b8e8564d2852c88767e967b88405c99341509cd3a3504fd67a65277116d"
+          )
+
         InternalTransactionImporter.import(transaction.hash)
-        last_internal_transaction = InternalTransaction |> order_by(desc: :index) |> limit(1)  |> Repo.one()
+
+        last_internal_transaction =
+          InternalTransaction |> order_by(desc: :index) |> limit(1) |> Repo.one()
+
         assert last_internal_transaction.call_type == "create"
       end
     end
@@ -47,7 +68,7 @@ defmodule Explorer.InternalTransactionImporterTest do
           "gas" => "0x4821f",
           "input" => "0xd1f276d3",
           "to" => "0xe213402e637565bb9de0651827517e7554693f53",
-          "value" => "0x0",
+          "value" => "0x0"
         },
         "result" => %{
           "gasUsed" => "0x4e4",
@@ -61,18 +82,20 @@ defmodule Explorer.InternalTransactionImporterTest do
       to_address = insert(:address, hash: "0xe213402e637565bb9de0651827517e7554693f53")
       from_address = insert(:address, hash: "0xba9f067abbc4315ece8eb33e7a3d01030bb368ef")
 
-      assert(InternalTransactionImporter.extract_trace({trace, 2}) == %{
+      assert(
+        InternalTransactionImporter.extract_trace({trace, 2}) == %{
           index: 2,
           to_address_id: to_address.id,
           from_address_id: from_address.id,
           call_type: "call",
           trace_address: [2, 0],
           value: 0,
-        gas: 295455,
+          gas: 295_455,
           gas_used: 1252,
           input: "0xd1f276d3",
-        output: "0x000000000000000000000000ba9f067abbc4315ece8eb33e7a3d01030bb368ef",
-      })
+          output: "0x000000000000000000000000ba9f067abbc4315ece8eb33e7a3d01030bb368ef"
+        }
+      )
     end
   end
 end

test/explorer/importers/receipt_importer_test.exs

@@ -7,72 +7,128 @@ defmodule Explorer.ReceiptImporterTest do
 
   describe "import/1" do
     test "saves a receipt to the database" do
-      transaction = insert(:transaction, hash: "0xdc3a0dfd0bbffd5eabbe40fb13afbe35ac5f5c030bff148f3e50afe32974b291")
+      transaction =
+        insert(
+          :transaction,
+          hash: "0xdc3a0dfd0bbffd5eabbe40fb13afbe35ac5f5c030bff148f3e50afe32974b291"
+        )
+
       use_cassette "transaction_importer_import_1_receipt" do
-        ReceiptImporter.import("0xdc3a0dfd0bbffd5eabbe40fb13afbe35ac5f5c030bff148f3e50afe32974b291")
-        receipt = Receipt |> preload([:transaction]) |> Repo.one
+        ReceiptImporter.import(
+          "0xdc3a0dfd0bbffd5eabbe40fb13afbe35ac5f5c030bff148f3e50afe32974b291"
+        )
+
+        receipt = Receipt |> preload([:transaction]) |> Repo.one()
         assert receipt.transaction == transaction
       end
     end
 
     test "saves a receipt log" do
-      insert(:transaction, hash: "0xdc3a0dfd0bbffd5eabbe40fb13afbe35ac5f5c030bff148f3e50afe32974b291")
+      insert(
+        :transaction,
+        hash: "0xdc3a0dfd0bbffd5eabbe40fb13afbe35ac5f5c030bff148f3e50afe32974b291"
+      )
+
       use_cassette "transaction_importer_import_1_receipt" do
-        ReceiptImporter.import("0xdc3a0dfd0bbffd5eabbe40fb13afbe35ac5f5c030bff148f3e50afe32974b291")
-        receipt = Receipt |> preload([:transaction]) |> Repo.one
-        log = Log |> preload([receipt: :transaction]) |> Repo.one
+        ReceiptImporter.import(
+          "0xdc3a0dfd0bbffd5eabbe40fb13afbe35ac5f5c030bff148f3e50afe32974b291"
+        )
+
+        receipt = Receipt |> preload([:transaction]) |> Repo.one()
+        log = Log |> preload(receipt: :transaction) |> Repo.one()
         assert log.receipt == receipt
       end
     end
 
     test "saves a receipt log for an address" do
-      insert(:transaction, hash: "0xdc3a0dfd0bbffd5eabbe40fb13afbe35ac5f5c030bff148f3e50afe32974b291")
+      insert(
+        :transaction,
+        hash: "0xdc3a0dfd0bbffd5eabbe40fb13afbe35ac5f5c030bff148f3e50afe32974b291"
+      )
+
       address = insert(:address, hash: "0x353fe3ffbf77edef7f9c352c47965a38c07e837c")
+
       use_cassette "transaction_importer_import_1_receipt" do
-        ReceiptImporter.import("0xdc3a0dfd0bbffd5eabbe40fb13afbe35ac5f5c030bff148f3e50afe32974b291")
-        log = Log |> preload([:address]) |> Repo.one
+        ReceiptImporter.import(
+          "0xdc3a0dfd0bbffd5eabbe40fb13afbe35ac5f5c030bff148f3e50afe32974b291"
+        )
+
+        log = Log |> preload([:address]) |> Repo.one()
         assert log.address == address
       end
     end
 
     test "saves a receipt for a failed transaction" do
-      insert(:transaction, hash: "0x2532864dc2e0d0bc2dfabf4685c0c03dbdbe9cf67ebc593fc82d41087ab71435")
+      insert(
+        :transaction,
+        hash: "0x2532864dc2e0d0bc2dfabf4685c0c03dbdbe9cf67ebc593fc82d41087ab71435"
+      )
+
       use_cassette "transaction_importer_import_1_failed" do
-        ReceiptImporter.import("0x2532864dc2e0d0bc2dfabf4685c0c03dbdbe9cf67ebc593fc82d41087ab71435")
+        ReceiptImporter.import(
+          "0x2532864dc2e0d0bc2dfabf4685c0c03dbdbe9cf67ebc593fc82d41087ab71435"
+        )
+
         receipt = Repo.one(Receipt)
         assert receipt.status == 0
       end
     end
 
     test "saves a receipt for a transaction that ran out of gas" do
-      insert(:transaction, hash: "0x702e518267b0a57e4cb44b9db100afe4d7115f2d2650466a8c376f3dbb77eb35")
+      insert(
+        :transaction,
+        hash: "0x702e518267b0a57e4cb44b9db100afe4d7115f2d2650466a8c376f3dbb77eb35"
+      )
+
       use_cassette "transaction_importer_import_1_out_of_gas" do
-        ReceiptImporter.import("0x702e518267b0a57e4cb44b9db100afe4d7115f2d2650466a8c376f3dbb77eb35")
+        ReceiptImporter.import(
+          "0x702e518267b0a57e4cb44b9db100afe4d7115f2d2650466a8c376f3dbb77eb35"
+        )
+
         receipt = Repo.one(Receipt)
         assert receipt.status == 0
       end
     end
 
     test "does not import a receipt for a transaction that already has one" do
-      transaction = insert(:transaction, hash: "0xdc3a0dfd0bbffd5eabbe40fb13afbe35ac5f5c030bff148f3e50afe32974b291")
+      transaction =
+        insert(
+          :transaction,
+          hash: "0xdc3a0dfd0bbffd5eabbe40fb13afbe35ac5f5c030bff148f3e50afe32974b291"
+        )
+
       insert(:receipt, transaction: transaction)
+
       use_cassette "transaction_importer_import_1_receipt" do
-        ReceiptImporter.import("0xdc3a0dfd0bbffd5eabbe40fb13afbe35ac5f5c030bff148f3e50afe32974b291")
+        ReceiptImporter.import(
+          "0xdc3a0dfd0bbffd5eabbe40fb13afbe35ac5f5c030bff148f3e50afe32974b291"
+        )
+
         assert Repo.all(Receipt) |> Enum.count() == 1
       end
     end
 
     test "does not import a receipt for a nonexistent transaction" do
       use_cassette "transaction_importer_import_1_receipt" do
-        ReceiptImporter.import("0xdc3a0dfd0bbffd5eabbe40fb13afbe35ac5f5c030bff148f3e50afe32974b291")
+        ReceiptImporter.import(
+          "0xdc3a0dfd0bbffd5eabbe40fb13afbe35ac5f5c030bff148f3e50afe32974b291"
+        )
+
         assert Repo.all(Receipt) |> Enum.count() == 0
       end
     end
 
     test "does not process a forever-pending receipt" do
-      insert(:transaction, hash: "0xde791cfcde3900d4771e5fcf8c11dc305714118df7aa7e42f84576e64dbf6246")
+      insert(
+        :transaction,
+        hash: "0xde791cfcde3900d4771e5fcf8c11dc305714118df7aa7e42f84576e64dbf6246"
+      )
+
       use_cassette "transaction_importer_import_1_pending" do
-        ReceiptImporter.import("0xde791cfcde3900d4771e5fcf8c11dc305714118df7aa7e42f84576e64dbf6246")
+        ReceiptImporter.import(
+          "0xde791cfcde3900d4771e5fcf8c11dc305714118df7aa7e42f84576e64dbf6246"
+        )
+
         assert Repo.all(Receipt) |> Enum.count() == 0
       end
     end

test/explorer/importers/transaction_importer_test.exs

@@ -23,39 +23,51 @@ defmodule Explorer.TransactionImporterTest do
     "to" => "0x7a33b7d",
     "standardV" => "0x11",
     "transactionIndex" => "0x12",
-    "v" => "0x13",
+    "v" => "0x13"
   }
 
   @processed_transaction %{
     hash: "pepino",
-    value: 1000000000000000000,
-    gas: 135168,
+    value: 1_000_000_000_000_000_000,
+    gas: 135_168,
     gas_price: 65536,
     input: "0x5c8eff12",
-    nonce: 201527,
+    nonce: 201_527,
     public_key: "0xb39af9c",
     r: "0x9",
     s: "0x10",
     standard_v: "0x11",
     transaction_index: "0x12",
-    v: "0x13",
+    v: "0x13"
   }
 
   describe "import/1" do
     test "imports and saves a transaction to the database" do
       use_cassette "transaction_importer_import_saves_the_transaction" do
-        TransactionImporter.import("0xdc3a0dfd0bbffd5eabbe40fb13afbe35ac5f5c030bff148f3e50afe32974b291")
-        transaction = Transaction |> order_by(desc: :inserted_at) |> Repo.one
+        TransactionImporter.import(
+          "0xdc3a0dfd0bbffd5eabbe40fb13afbe35ac5f5c030bff148f3e50afe32974b291"
+        )
 
-        assert transaction.hash == "0xdc3a0dfd0bbffd5eabbe40fb13afbe35ac5f5c030bff148f3e50afe32974b291"
+        transaction = Transaction |> order_by(desc: :inserted_at) |> Repo.one()
+
+        assert transaction.hash ==
+                 "0xdc3a0dfd0bbffd5eabbe40fb13afbe35ac5f5c030bff148f3e50afe32974b291"
       end
     end
 
     test "when the transaction has previously been saved does not update it" do
       use_cassette "transaction_importer_updates_the_association" do
-        insert(:transaction, hash: "0x170baac4eca26076953370dd603c68eab340c0135b19b585010d3158a5dbbf23", gas: 5)
-        TransactionImporter.import("0x170baac4eca26076953370dd603c68eab340c0135b19b585010d3158a5dbbf23")
-        transaction = Transaction |> order_by(desc: :inserted_at) |> Repo.one
+        insert(
+          :transaction,
+          hash: "0x170baac4eca26076953370dd603c68eab340c0135b19b585010d3158a5dbbf23",
+          gas: 5
+        )
+
+        TransactionImporter.import(
+          "0x170baac4eca26076953370dd603c68eab340c0135b19b585010d3158a5dbbf23"
+        )
+
+        transaction = Transaction |> order_by(desc: :inserted_at) |> Repo.one()
 
         assert transaction.gas == Decimal.new(5)
       end
@@ -63,9 +75,22 @@ defmodule Explorer.TransactionImporterTest do
 
     test "binds an association to an existing block" do
       use_cassette "transaction_importer_saves_the_association" do
-        block = insert(:block, hash: "0xfce13392435a8e7dab44c07d482212efb9dc39a9bea1915a9ead308b55a617f9")
-        TransactionImporter.import("0x64d851139325479c3bb7ccc6e6ab4cde5bc927dce6810190fe5d770a4c1ac333")
-        transaction = Transaction |> Repo.get_by(hash: "0x64d851139325479c3bb7ccc6e6ab4cde5bc927dce6810190fe5d770a4c1ac333")
+        block =
+          insert(
+            :block,
+            hash: "0xfce13392435a8e7dab44c07d482212efb9dc39a9bea1915a9ead308b55a617f9"
+          )
+
+        TransactionImporter.import(
+          "0x64d851139325479c3bb7ccc6e6ab4cde5bc927dce6810190fe5d770a4c1ac333"
+        )
+
+        transaction =
+          Transaction
+          |> Repo.get_by(
+            hash: "0x64d851139325479c3bb7ccc6e6ab4cde5bc927dce6810190fe5d770a4c1ac333"
+          )
+
         block_transaction = BlockTransaction |> Repo.get_by(transaction_id: transaction.id)
 
         assert block_transaction.block_id == block.id
@@ -74,8 +99,16 @@ defmodule Explorer.TransactionImporterTest do
 
     test "when there is no block it does not save a block transaction" do
       use_cassette "transaction_importer_txn_without_block" do
-        TransactionImporter.import("0xc6aa189827c14880f012a65292f7add7b5310094f8773a3d85b66303039b9dcf")
-        transaction = Transaction |> Repo.get_by(hash: "0xc6aa189827c14880f012a65292f7add7b5310094f8773a3d85b66303039b9dcf")
+        TransactionImporter.import(
+          "0xc6aa189827c14880f012a65292f7add7b5310094f8773a3d85b66303039b9dcf"
+        )
+
+        transaction =
+          Transaction
+          |> Repo.get_by(
+            hash: "0xc6aa189827c14880f012a65292f7add7b5310094f8773a3d85b66303039b9dcf"
+          )
+
         block_transaction = BlockTransaction |> Repo.get_by(transaction_id: transaction.id)
 
         refute block_transaction
@@ -84,11 +117,20 @@ defmodule Explorer.TransactionImporterTest do
 
     test "creates a from address" do
       use_cassette "transaction_importer_creates_a_from_address" do
-        TransactionImporter.import("0xc445f5410912458c480d992dd93355ae3dad64d9f65db25a3cf43a9c609a2e0d")
+        TransactionImporter.import(
+          "0xc445f5410912458c480d992dd93355ae3dad64d9f65db25a3cf43a9c609a2e0d"
+        )
+
+        transaction =
+          Transaction
+          |> Repo.get_by(
+            hash: "0xc445f5410912458c480d992dd93355ae3dad64d9f65db25a3cf43a9c609a2e0d"
+          )
 
-        transaction = Transaction |> Repo.get_by(hash: "0xc445f5410912458c480d992dd93355ae3dad64d9f65db25a3cf43a9c609a2e0d")
         address = Address |> Repo.get_by(hash: "0xa5b4b372112ab8dbbb48c8d0edd89227e24ec785")
-        from_address = FromAddress |> Repo.get_by(transaction_id: transaction.id, address_id: address.id)
+
+        from_address =
+          FromAddress |> Repo.get_by(transaction_id: transaction.id, address_id: address.id)
 
         assert from_address
       end
@@ -96,12 +138,22 @@ defmodule Explorer.TransactionImporterTest do
 
     test "binds an existing from address" do
       insert(:address, hash: "0xa5b4b372112ab8dbbb48c8d0edd89227e24ec785")
+
       use_cassette "transaction_importer_creates_a_from_address" do
-        TransactionImporter.import("0xc445f5410912458c480d992dd93355ae3dad64d9f65db25a3cf43a9c609a2e0d")
+        TransactionImporter.import(
+          "0xc445f5410912458c480d992dd93355ae3dad64d9f65db25a3cf43a9c609a2e0d"
+        )
+
+        transaction =
+          Transaction
+          |> Repo.get_by(
+            hash: "0xc445f5410912458c480d992dd93355ae3dad64d9f65db25a3cf43a9c609a2e0d"
+          )
 
-        transaction = Transaction |> Repo.get_by(hash: "0xc445f5410912458c480d992dd93355ae3dad64d9f65db25a3cf43a9c609a2e0d")
         address = Address |> Repo.get_by(hash: "0xa5b4b372112ab8dbbb48c8d0edd89227e24ec785")
-        from_address = FromAddress |> Repo.get_by(transaction_id: transaction.id, address_id: address.id)
+
+        from_address =
+          FromAddress |> Repo.get_by(transaction_id: transaction.id, address_id: address.id)
 
         assert from_address
       end
@@ -109,11 +161,20 @@ defmodule Explorer.TransactionImporterTest do
 
     test "creates a to address" do
       use_cassette "transaction_importer_creates_a_to_address" do
-        TransactionImporter.import("0xdc533d4227734a7cacd75a069e8dc57ac571b865ed97bae5ea4cb74b54145f4c")
+        TransactionImporter.import(
+          "0xdc533d4227734a7cacd75a069e8dc57ac571b865ed97bae5ea4cb74b54145f4c"
+        )
+
+        transaction =
+          Transaction
+          |> Repo.get_by(
+            hash: "0xdc533d4227734a7cacd75a069e8dc57ac571b865ed97bae5ea4cb74b54145f4c"
+          )
 
-        transaction = Transaction |> Repo.get_by(hash: "0xdc533d4227734a7cacd75a069e8dc57ac571b865ed97bae5ea4cb74b54145f4c")
         address = Address |> Repo.get_by(hash: "0x24e5b8528fe83257d5fe3497ef616026713347f8")
-        to_address = ToAddress |> Repo.get_by(transaction_id: transaction.id, address_id: address.id)
+
+        to_address =
+          ToAddress |> Repo.get_by(transaction_id: transaction.id, address_id: address.id)
 
         assert(to_address)
       end
@@ -121,12 +182,22 @@ defmodule Explorer.TransactionImporterTest do
 
     test "binds an existing to address" do
       insert(:address, hash: "0x24e5b8528fe83257d5fe3497ef616026713347f8")
+
       use_cassette "transaction_importer_creates_a_to_address" do
-        TransactionImporter.import("0xdc533d4227734a7cacd75a069e8dc57ac571b865ed97bae5ea4cb74b54145f4c")
+        TransactionImporter.import(
+          "0xdc533d4227734a7cacd75a069e8dc57ac571b865ed97bae5ea4cb74b54145f4c"
+        )
+
+        transaction =
+          Transaction
+          |> Repo.get_by(
+            hash: "0xdc533d4227734a7cacd75a069e8dc57ac571b865ed97bae5ea4cb74b54145f4c"
+          )
 
-        transaction = Transaction |> Repo.get_by(hash: "0xdc533d4227734a7cacd75a069e8dc57ac571b865ed97bae5ea4cb74b54145f4c")
         address = Address |> Repo.get_by(hash: "0x24e5b8528fe83257d5fe3497ef616026713347f8")
-        to_address = ToAddress |> Repo.get_by(transaction_id: transaction.id, address_id: address.id)
+
+        to_address =
+          ToAddress |> Repo.get_by(transaction_id: transaction.id, address_id: address.id)
 
         assert(to_address)
       end
@@ -134,10 +205,20 @@ defmodule Explorer.TransactionImporterTest do
 
     test "creates a to address using creates when to is nil" do
       use_cassette "transaction_importer_creates_a_to_address_from_creates" do
-        TransactionImporter.import("0xdc533d4227734a7cacd75a069e8dc57ac571b865ed97bae5ea4cb74b54145f4c")
-        transaction = Transaction |> Repo.get_by(hash: "0xdc533d4227734a7cacd75a069e8dc57ac571b865ed97bae5ea4cb74b54145f4c")
+        TransactionImporter.import(
+          "0xdc533d4227734a7cacd75a069e8dc57ac571b865ed97bae5ea4cb74b54145f4c"
+        )
+
+        transaction =
+          Transaction
+          |> Repo.get_by(
+            hash: "0xdc533d4227734a7cacd75a069e8dc57ac571b865ed97bae5ea4cb74b54145f4c"
+          )
+
         address = Address |> Repo.get_by(hash: "0x24e5b8528fe83257d5fe3497ef616026713347f8")
-        to_address = ToAddress |> Repo.get_by(transaction_id: transaction.id, address_id: address.id)
+
+        to_address =
+          ToAddress |> Repo.get_by(transaction_id: transaction.id, address_id: address.id)
 
         assert(to_address)
       end
@@ -145,7 +226,11 @@ defmodule Explorer.TransactionImporterTest do
 
     test "processes a map of transaction attributes" do
       insert(:block, hash: "0xtakis")
-      TransactionImporter.import(Map.merge(@raw_transaction, %{"hash" => "0xmunchos", "blockHash" => "0xtakis"}))
+
+      TransactionImporter.import(
+        Map.merge(@raw_transaction, %{"hash" => "0xmunchos", "blockHash" => "0xtakis"})
+      )
+
       last_transaction = Transaction |> order_by(desc: :inserted_at) |> limit(1) |> Repo.one()
 
       assert last_transaction.hash == "0xmunchos"
@@ -166,7 +251,11 @@ defmodule Explorer.TransactionImporterTest do
   describe "download_transaction/1" do
     test "downloads a transaction" do
       use_cassette "transaction_importer_download_transaction" do
-        raw_transaction = TransactionImporter.download_transaction("0x170baac4eca26076953370dd603c68eab340c0135b19b585010d3158a5dbbf23")
+        raw_transaction =
+          TransactionImporter.download_transaction(
+            "0x170baac4eca26076953370dd603c68eab340c0135b19b585010d3158a5dbbf23"
+          )
+
         assert(raw_transaction["from"] == "0xbe96ef1d056c97323e210fd0dd818aa027e57143")
       end
     end
@@ -192,6 +281,7 @@ defmodule Explorer.TransactionImporterTest do
       block = insert(:block)
       transaction = insert(:transaction)
       TransactionImporter.create_block_transaction(transaction, block.hash)
+
       block_transaction =
         BlockTransaction
         |> Repo.get_by(transaction_id: transaction.id, block_id: block.id)
@@ -203,9 +293,18 @@ defmodule Explorer.TransactionImporterTest do
       block = insert(:block)
       transaction = insert(:transaction)
       the_seventies = Timex.parse!("1970-01-01T00:00:18-00:00", "{ISO:Extended}")
-      block_transaction = insert(:block_transaction, %{block_id: block.id, transaction_id: transaction.id, inserted_at: the_seventies, updated_at: the_seventies})
+
+      block_transaction =
+        insert(:block_transaction, %{
+          block_id: block.id,
+          transaction_id: transaction.id,
+          inserted_at: the_seventies,
+          updated_at: the_seventies
+        })
+
       update_block = insert(:block)
       TransactionImporter.create_block_transaction(transaction, update_block.hash)
+
       updated_block_transaction =
         BlockTransaction
         |> Repo.get_by(transaction_id: transaction.id)
@@ -219,7 +318,7 @@ defmodule Explorer.TransactionImporterTest do
     test "that it creates a new address when one does not exist" do
       transaction = insert(:transaction)
       TransactionImporter.create_from_address(transaction, "0xbb8")
-      last_address = Address |> order_by(desc: :inserted_at) |> Repo.one
+      last_address = Address |> order_by(desc: :inserted_at) |> Repo.one()
 
       assert last_address.hash == "0xbb8"
     end
@@ -227,8 +326,8 @@ defmodule Explorer.TransactionImporterTest do
     test "that it joins transaction and from address" do
       transaction = insert(:transaction)
       TransactionImporter.create_from_address(transaction, "0xFreshPrince")
-      address = Address |> order_by(desc: :inserted_at) |> Repo.one
-      from_address = FromAddress |> order_by(desc: :inserted_at) |> Repo.one
+      address = Address |> order_by(desc: :inserted_at) |> Repo.one()
+      from_address = FromAddress |> order_by(desc: :inserted_at) |> Repo.one()
 
       assert from_address.transaction_id == transaction.id
       assert from_address.address_id == address.id
@@ -239,7 +338,7 @@ defmodule Explorer.TransactionImporterTest do
       insert(:address, hash: "0xbb8")
       TransactionImporter.create_from_address(transaction, "0xbb8")
 
-      assert Address |> Repo.all |> length == 1
+      assert Address |> Repo.all() |> length == 1
     end
   end
 
@@ -247,7 +346,7 @@ defmodule Explorer.TransactionImporterTest do
     test "that it creates a new address when one does not exist" do
       transaction = insert(:transaction)
       TransactionImporter.create_to_address(transaction, "0xFreshPrince")
-      last_address = Address |> order_by(desc: :inserted_at) |> Repo.one
+      last_address = Address |> order_by(desc: :inserted_at) |> Repo.one()
 
       assert last_address.hash == "0xfreshprince"
     end
@@ -255,8 +354,8 @@ defmodule Explorer.TransactionImporterTest do
     test "that it joins transaction and address" do
       transaction = insert(:transaction)
       TransactionImporter.create_to_address(transaction, "0xFreshPrince")
-      address = Address |> order_by(desc: :inserted_at) |> Repo.one
-      to_address = ToAddress |> order_by(desc: :inserted_at) |> Repo.one
+      address = Address |> order_by(desc: :inserted_at) |> Repo.one()
+      to_address = ToAddress |> order_by(desc: :inserted_at) |> Repo.one()
 
       assert to_address.transaction_id == transaction.id
       assert to_address.address_id == address.id
@@ -267,13 +366,13 @@ defmodule Explorer.TransactionImporterTest do
       insert(:address, hash: "bigmouthbillybass")
       TransactionImporter.create_to_address(transaction, "bigmouthbillybass")
 
-      assert Address |> Repo.all |> length == 1
+      assert Address |> Repo.all() |> length == 1
     end
   end
 
   describe "decode_integer_field/1" do
     test "returns the integer value of a hex value" do
-      assert(TransactionImporter.decode_integer_field("0x7f2fb") == 520955)
+      assert(TransactionImporter.decode_integer_field("0x7f2fb") == 520_955)
     end
   end
 end

test/explorer/internal_transaction_test.exs

@@ -6,7 +6,22 @@ defmodule Explorer.InternalTransactionTest do
   describe "changeset/2" do
     test "with valid attributes" do
       transaction = insert(:transaction)
-      changeset = InternalTransaction.changeset(%InternalTransaction{}, %{transaction_id: transaction.id, index: 0, call_type: "call", trace_address: [0, 1], value: 100, gas: 100, gas_used: 100, input: "pintos", output: "refried", to_address_id: 1, from_address_id: 2})
+
+      changeset =
+        InternalTransaction.changeset(%InternalTransaction{}, %{
+          transaction_id: transaction.id,
+          index: 0,
+          call_type: "call",
+          trace_address: [0, 1],
+          value: 100,
+          gas: 100,
+          gas_used: 100,
+          input: "pintos",
+          output: "refried",
+          to_address_id: 1,
+          from_address_id: 2
+        })
+
       assert changeset.valid?
     end
 
@@ -17,7 +32,20 @@ defmodule Explorer.InternalTransactionTest do
 
     test "that a valid changeset is persistable" do
       transaction = insert(:transaction)
-      changeset = InternalTransaction.changeset(%InternalTransaction{}, %{transaction: transaction, index: 0, call_type: "call", trace_address: [0, 1], value: 100, gas: 100, gas_used: 100, input: "thin-mints", output: "munchos"})
+
+      changeset =
+        InternalTransaction.changeset(%InternalTransaction{}, %{
+          transaction: transaction,
+          index: 0,
+          call_type: "call",
+          trace_address: [0, 1],
+          value: 100,
+          gas: 100,
+          gas_used: 100,
+          input: "thin-mints",
+          output: "munchos"
+        })
+
       assert Repo.insert(changeset)
     end
   end

test/explorer/receipt_test.exs

@@ -33,7 +33,7 @@ defmodule Explorer.ReceiptTest do
       log_params = params_for(:log, address: address)
       params = params_for(:receipt, transaction: transaction, logs: [log_params])
       changeset = Receipt.changeset(%Receipt{}, params)
-      receipt = Repo.insert!(changeset) |> Repo.preload([logs: :address])
+      receipt = Repo.insert!(changeset) |> Repo.preload(logs: :address)
       assert List.first(receipt.logs).address == address
     end
   end

test/explorer/transaction_test.exs

@@ -5,7 +5,22 @@ defmodule Explorer.TransactionTest do
 
   describe "changeset/2" do
     test "with valid attributes" do
-      changeset = Transaction.changeset(%Transaction{}, %{hash: "0x0", value: 1, gas: 21000, gas_price: 10000, input: "0x5c8eff12", nonce: "31337", public_key: "0xb39af9c", r: "0x9", s: "0x10", standard_v: "0x11", transaction_index: "0x12", v: "0x13"})
+      changeset =
+        Transaction.changeset(%Transaction{}, %{
+          hash: "0x0",
+          value: 1,
+          gas: 21000,
+          gas_price: 10000,
+          input: "0x5c8eff12",
+          nonce: "31337",
+          public_key: "0xb39af9c",
+          r: "0x9",
+          s: "0x10",
+          standard_v: "0x11",
+          transaction_index: "0x12",
+          v: "0x13"
+        })
+
       assert changeset.valid?
     end
 

test/explorer/workers/import_block_test.exs

@@ -11,7 +11,7 @@ defmodule Explorer.Workers.ImportBlockTest do
     test "imports the requested block number as an integer" do
       use_cassette "import_block_perform_1_integer" do
         ImportBlock.perform(1)
-        last_block = Block |> order_by(asc: :number) |> Repo.one
+        last_block = Block |> order_by(asc: :number) |> Repo.one()
         assert last_block.number == 1
       end
     end
@@ -19,7 +19,7 @@ defmodule Explorer.Workers.ImportBlockTest do
     test "imports the requested block number as a string" do
       use_cassette "import_block_perform_1_string" do
         ImportBlock.perform("1")
-        last_block = Block |> order_by(asc: :number) |> Repo.one
+        last_block = Block |> order_by(asc: :number) |> Repo.one()
         assert last_block.number == 1
       end
     end
@@ -27,16 +27,16 @@ defmodule Explorer.Workers.ImportBlockTest do
     test "imports the earliest block" do
       use_cassette "import_block_perform_1_earliest" do
         ImportBlock.perform("earliest")
-        last_block = Block |> order_by(asc: :number) |> Repo.one
+        last_block = Block |> order_by(asc: :number) |> Repo.one()
         assert last_block.number == 0
       end
     end
 
     test "imports the latest block" do
       use_cassette "import_block_perform_1_latest" do
-        with_mock Exq, [enqueue: fn (_, _, _, [number]) -> insert(:block, number: number) end] do
+        with_mock Exq, enqueue: fn _, _, _, [number] -> insert(:block, number: number) end do
           ImportBlock.perform("latest")
-          last_block = Block |> order_by(asc: :number) |> Repo.one
+          last_block = Block |> order_by(asc: :number) |> Repo.one()
           assert last_block.number > 0
         end
       end
@@ -46,7 +46,7 @@ defmodule Explorer.Workers.ImportBlockTest do
       use_cassette "import_block_perform_1_duplicate" do
         insert(:block, hash: "0x52c867bc0a91e573dc39300143c3bead7408d09d45bdb686749f02684ece72f3")
         ImportBlock.perform("1")
-        block_count = Block |> Repo.all |> Enum.count
+        block_count = Block |> Repo.all() |> Enum.count()
         assert block_count == 1
       end
     end
@@ -55,9 +55,9 @@ defmodule Explorer.Workers.ImportBlockTest do
   describe "perform_later/1" do
     test "does not retry fetching the latest block" do
       use_cassette "import_block_perform_later_1_latest" do
-        with_mock Exq, [enqueue: fn (_, _, _, _) -> insert(:block, number: 1) end] do
+        with_mock Exq, enqueue: fn _, _, _, _ -> insert(:block, number: 1) end do
           ImportBlock.perform_later("latest")
-          last_block = Block |> order_by(asc: :number) |> limit(1) |> Repo.one
+          last_block = Block |> order_by(asc: :number) |> limit(1) |> Repo.one()
           assert last_block.number == 1
         end
       end

test/explorer/workers/import_receipt_test.exs

@@ -8,16 +8,26 @@ defmodule Explorer.Workers.ImportReceiptTest do
   describe "perform/1" do
     test "does not import a receipt when no transaction with the hash exists" do
       use_cassette "import_receipt_perform_1" do
-        ImportReceipt.perform("0xf9a0959d5ccde33ec5221ddba1c6d7eaf9580a8d3512c7a1a60301362a98f926")
+        ImportReceipt.perform(
+          "0xf9a0959d5ccde33ec5221ddba1c6d7eaf9580a8d3512c7a1a60301362a98f926"
+        )
+
         assert Repo.one(Receipt) == nil
       end
     end
 
     test "imports a receipt when a transaction with the hash exists" do
-      insert(:transaction, hash: "0xf9a0959d5ccde33ec5221ddba1c6d7eaf9580a8d3512c7a1a60301362a98f926")
+      insert(
+        :transaction,
+        hash: "0xf9a0959d5ccde33ec5221ddba1c6d7eaf9580a8d3512c7a1a60301362a98f926"
+      )
+
       use_cassette "import_receipt_perform_1" do
-        ImportReceipt.perform("0xf9a0959d5ccde33ec5221ddba1c6d7eaf9580a8d3512c7a1a60301362a98f926")
-        receipt_count = Receipt |> Repo.all |> Enum.count
+        ImportReceipt.perform(
+          "0xf9a0959d5ccde33ec5221ddba1c6d7eaf9580a8d3512c7a1a60301362a98f926"
+        )
+
+        receipt_count = Receipt |> Repo.all() |> Enum.count()
         assert receipt_count == 1
       end
     end

test/explorer/workers/import_skipped_blocks_test.exs

@@ -11,10 +11,11 @@ defmodule Explorer.Workers.ImportSkippedBlocksTest do
   describe "perform/1" do
     test "imports the requested number of skipped blocks" do
       insert(:block, %{number: 2})
+
       use_cassette "import_skipped_blocks_perform_1" do
-        with_mock ImportBlock, [perform_later: fn (number) -> insert(:block, number: number) end] do
+        with_mock ImportBlock, perform_later: fn number -> insert(:block, number: number) end do
           ImportSkippedBlocks.perform(1)
-          last_block = Block |> order_by(asc: :number) |> limit(1) |> Repo.one
+          last_block = Block |> order_by(asc: :number) |> limit(1) |> Repo.one()
           assert last_block.number == 1
         end
       end

test/explorer/workers/import_transaction_test.exs

@@ -11,30 +11,50 @@ defmodule Explorer.Workers.ImportTransactionTest do
   describe "perform/1" do
     test "imports the requested transaction hash" do
       use_cassette "import_transaction_perform_1" do
-        with_mock Exq, [enqueue: fn (_, _, _, _) -> :ok end] do
-          ImportTransaction.perform("0xf9a0959d5ccde33ec5221ddba1c6d7eaf9580a8d3512c7a1a60301362a98f926")
+        with_mock Exq, enqueue: fn _, _, _, _ -> :ok end do
+          ImportTransaction.perform(
+            "0xf9a0959d5ccde33ec5221ddba1c6d7eaf9580a8d3512c7a1a60301362a98f926"
+          )
         end
-        transaction = Transaction |> Repo.one
-        assert transaction.hash == "0xf9a0959d5ccde33ec5221ddba1c6d7eaf9580a8d3512c7a1a60301362a98f926"
+
+        transaction = Transaction |> Repo.one()
+
+        assert transaction.hash ==
+                 "0xf9a0959d5ccde33ec5221ddba1c6d7eaf9580a8d3512c7a1a60301362a98f926"
       end
     end
 
     test "when there is already a transaction with the requested hash" do
-      insert(:transaction, hash: "0xf9a0959d5ccde33ec5221ddba1c6d7eaf9580a8d3512c7a1a60301362a98f926")
+      insert(
+        :transaction,
+        hash: "0xf9a0959d5ccde33ec5221ddba1c6d7eaf9580a8d3512c7a1a60301362a98f926"
+      )
+
       use_cassette "import_transaction_perform_1" do
-        with_mock Exq, [enqueue: fn (_, _, _, _) -> :ok end] do
-          ImportTransaction.perform("0xf9a0959d5ccde33ec5221ddba1c6d7eaf9580a8d3512c7a1a60301362a98f926")
+        with_mock Exq, enqueue: fn _, _, _, _ -> :ok end do
+          ImportTransaction.perform(
+            "0xf9a0959d5ccde33ec5221ddba1c6d7eaf9580a8d3512c7a1a60301362a98f926"
+          )
         end
-        transaction_count = Transaction |> Repo.all |> Enum.count
+
+        transaction_count = Transaction |> Repo.all() |> Enum.count()
         assert transaction_count == 1
       end
     end
 
     test "imports the receipt in another queue" do
-      transaction = insert(:transaction, hash: "0xf9a0959d5ccde33ec5221ddba1c6d7eaf9580a8d3512c7a1a60301362a98f926")
+      transaction =
+        insert(
+          :transaction,
+          hash: "0xf9a0959d5ccde33ec5221ddba1c6d7eaf9580a8d3512c7a1a60301362a98f926"
+        )
+
       use_cassette "import_transaction_perform_1" do
-        with_mock Exq, [enqueue: fn (_, _, _, _) -> insert(:receipt, transaction: transaction) end] do
-          ImportTransaction.perform("0xf9a0959d5ccde33ec5221ddba1c6d7eaf9580a8d3512c7a1a60301362a98f926")
+        with_mock Exq, enqueue: fn _, _, _, _ -> insert(:receipt, transaction: transaction) end do
+          ImportTransaction.perform(
+            "0xf9a0959d5ccde33ec5221ddba1c6d7eaf9580a8d3512c7a1a60301362a98f926"
+          )
+
           receipt = Repo.one(Receipt)
           refute is_nil(receipt)
         end
@@ -42,15 +62,21 @@ defmodule Explorer.Workers.ImportTransactionTest do
     end
 
     test "imports the receipt in another queue when a map is supplied" do
-      transaction = insert(:transaction, hash: "0xf9a0959d5ccde33ec5221ddba1c6d7eaf9580a8d3512c7a1a60301362a98f926")
+      transaction =
+        insert(
+          :transaction,
+          hash: "0xf9a0959d5ccde33ec5221ddba1c6d7eaf9580a8d3512c7a1a60301362a98f926"
+        )
+
       use_cassette "import_transaction_perform_1" do
-        with_mock Exq, [enqueue: fn (_, _, _, _) -> insert(:receipt, transaction: transaction) end] do
+        with_mock Exq, enqueue: fn _, _, _, _ -> insert(:receipt, transaction: transaction) end do
           ImportTransaction.perform(%{
             "hash" => "0xf9a0959d5ccde33ec5221ddba1c6d7eaf9580a8d3512c7a1a60301362a98f926",
             "to" => "0xc001",
             "from" => "0xbead5",
-            "blockHash" => "0xcafe",
+            "blockHash" => "0xcafe"
           })
+
           receipt = Repo.one(Receipt)
           refute is_nil(receipt)
         end
@@ -61,10 +87,21 @@ defmodule Explorer.Workers.ImportTransactionTest do
   describe "perform_later/1" do
     test "imports the transaction in another queue" do
       use_cassette "import_transaction_perform_1" do
-        with_mock Exq, [enqueue: fn (_, _, _, _) -> insert(:transaction, hash: "0xf9a0959d5ccde33ec5221ddba1c6d7eaf9580a8d3512c7a1a60301362a98f926") end] do
-          ImportTransaction.perform_later("0xf9a0959d5ccde33ec5221ddba1c6d7eaf9580a8d3512c7a1a60301362a98f926")
+        with_mock Exq,
+          enqueue: fn _, _, _, _ ->
+            insert(
+              :transaction,
+              hash: "0xf9a0959d5ccde33ec5221ddba1c6d7eaf9580a8d3512c7a1a60301362a98f926"
+            )
+          end do
+          ImportTransaction.perform_later(
+            "0xf9a0959d5ccde33ec5221ddba1c6d7eaf9580a8d3512c7a1a60301362a98f926"
+          )
+
           transaction = Repo.one(Transaction)
-          assert transaction.hash == "0xf9a0959d5ccde33ec5221ddba1c6d7eaf9580a8d3512c7a1a60301362a98f926"
+
+          assert transaction.hash ==
+                   "0xf9a0959d5ccde33ec5221ddba1c6d7eaf9580a8d3512c7a1a60301362a98f926"
         end
       end
     end

test/explorer/workers/refresh_balance_test.exs

@@ -9,23 +9,23 @@ defmodule Explorer.Workers.RefreshBalanceTest do
 
   describe "perform/0" do
     test "refreshes credit balances" do
-      with_mock Exq, [enqueue: fn (_, _, _, [type]) -> RefreshBalance.perform(type) end] do
+      with_mock Exq, enqueue: fn _, _, _, [type] -> RefreshBalance.perform(type) end do
         address = insert(:address)
         transaction = insert(:transaction, value: 20)
         insert(:to_address, address: address, transaction: transaction)
         insert(:receipt, transaction: transaction, status: 1)
-        RefreshBalance.perform
+        RefreshBalance.perform()
         assert Repo.one(Credit).value == Decimal.new(20)
       end
     end
 
     test "refreshes debit balances" do
-      with_mock Exq, [enqueue: fn (_, _, _, [type]) -> RefreshBalance.perform(type) end] do
+      with_mock Exq, enqueue: fn _, _, _, [type] -> RefreshBalance.perform(type) end do
         address = insert(:address)
         transaction = insert(:transaction, value: 20)
         insert(:from_address, address: address, transaction: transaction)
         insert(:receipt, transaction: transaction, status: 1)
-        RefreshBalance.perform
+        RefreshBalance.perform()
         assert Repo.one(Debit).value == Decimal.new(20)
       end
     end

test/explorer_web/controllers/address_controller_test.exs

@@ -7,8 +7,8 @@ defmodule ExplorerWeb.AddressControllerTest do
   describe "GET show/3" do
     test "returns an address", %{conn: conn} do
       address = insert(:address, hash: "0x9")
-      Credit.refresh
-      Debit.refresh
+      Credit.refresh()
+      Debit.refresh()
       conn = get(conn, "/en/addresses/0x9")
       assert conn.assigns.address.id == address.id
     end

test/explorer_web/controllers/address_transaction_from_controller_test.exs

@@ -13,7 +13,10 @@ defmodule ExplorerWeb.AddressTransactionFromControllerTest do
       other_address = insert(:address)
       insert(:to_address, transaction: transaction, address: other_address)
       insert(:from_address, transaction: transaction, address: address)
-      conn = get(conn, address_transaction_from_path(ExplorerWeb.Endpoint, :index, :en, address.hash))
+
+      conn =
+        get(conn, address_transaction_from_path(ExplorerWeb.Endpoint, :index, :en, address.hash))
+
       assert conn.assigns.transactions.total_entries == 1
       assert List.first(conn.assigns.transactions.entries).hash == "0xsnacks"
     end
@@ -27,7 +30,10 @@ defmodule ExplorerWeb.AddressTransactionFromControllerTest do
       other_address = insert(:address)
       insert(:to_address, transaction: transaction, address: address)
       insert(:from_address, transaction: transaction, address: other_address)
-      conn = get(conn, address_transaction_from_path(ExplorerWeb.Endpoint, :index, :en, address.hash))
+
+      conn =
+        get(conn, address_transaction_from_path(ExplorerWeb.Endpoint, :index, :en, address.hash))
+
       assert conn.assigns.transactions.total_entries == 0
     end
 
@@ -38,7 +44,10 @@ defmodule ExplorerWeb.AddressTransactionFromControllerTest do
       address = insert(:address)
       insert(:to_address, transaction: transaction, address: address)
       insert(:from_address, transaction: transaction, address: address)
-      conn = get(conn, address_transaction_from_path(ExplorerWeb.Endpoint, :index, :en, address.hash))
+
+      conn =
+        get(conn, address_transaction_from_path(ExplorerWeb.Endpoint, :index, :en, address.hash))
+
       assert conn.assigns.transactions.total_entries == 0
     end
 
@@ -49,7 +58,10 @@ defmodule ExplorerWeb.AddressTransactionFromControllerTest do
       insert(:block_transaction, transaction: transaction, block: block)
       address = insert(:address)
       insert(:to_address, transaction: transaction, address: address)
-      conn = get(conn, address_transaction_from_path(ExplorerWeb.Endpoint, :index, :en, address.hash))
+
+      conn =
+        get(conn, address_transaction_from_path(ExplorerWeb.Endpoint, :index, :en, address.hash))
+
       assert conn.assigns.transactions.total_entries == 0
     end
 
@@ -60,7 +72,10 @@ defmodule ExplorerWeb.AddressTransactionFromControllerTest do
       insert(:block_transaction, transaction: transaction, block: block)
       address = insert(:address)
       insert(:from_address, transaction: transaction, address: address)
-      conn = get(conn, address_transaction_from_path(ExplorerWeb.Endpoint, :index, :en, address.hash))
+
+      conn =
+        get(conn, address_transaction_from_path(ExplorerWeb.Endpoint, :index, :en, address.hash))
+
       assert conn.assigns.transactions.total_entries == 0
     end
   end

test/explorer_web/controllers/address_transaction_to_controller_test.exs

@@ -13,7 +13,10 @@ defmodule ExplorerWeb.AddressTransactionToControllerTest do
       other_address = insert(:address)
       insert(:to_address, transaction: transaction, address: address)
       insert(:from_address, transaction: transaction, address: other_address)
-      conn = get(conn, address_transaction_to_path(ExplorerWeb.Endpoint, :index, :en, address.hash))
+
+      conn =
+        get(conn, address_transaction_to_path(ExplorerWeb.Endpoint, :index, :en, address.hash))
+
       assert conn.assigns.transactions.total_entries == 1
       assert List.first(conn.assigns.transactions.entries).hash == "0xsnacks"
     end
@@ -27,7 +30,10 @@ defmodule ExplorerWeb.AddressTransactionToControllerTest do
       other_address = insert(:address)
       insert(:to_address, transaction: transaction, address: other_address)
       insert(:from_address, transaction: transaction, address: address)
-      conn = get(conn, address_transaction_to_path(ExplorerWeb.Endpoint, :index, :en, address.hash))
+
+      conn =
+        get(conn, address_transaction_to_path(ExplorerWeb.Endpoint, :index, :en, address.hash))
+
       assert conn.assigns.transactions.total_entries == 0
     end
 
@@ -38,7 +44,10 @@ defmodule ExplorerWeb.AddressTransactionToControllerTest do
       address = insert(:address)
       insert(:to_address, transaction: transaction, address: address)
       insert(:from_address, transaction: transaction, address: address)
-      conn = get(conn, address_transaction_to_path(ExplorerWeb.Endpoint, :index, :en, address.hash))
+
+      conn =
+        get(conn, address_transaction_to_path(ExplorerWeb.Endpoint, :index, :en, address.hash))
+
       assert conn.assigns.transactions.total_entries == 0
     end
 
@@ -49,7 +58,10 @@ defmodule ExplorerWeb.AddressTransactionToControllerTest do
       insert(:block_transaction, transaction: transaction, block: block)
       address = insert(:address)
       insert(:to_address, transaction: transaction, address: address)
-      conn = get(conn, address_transaction_to_path(ExplorerWeb.Endpoint, :index, :en, address.hash))
+
+      conn =
+        get(conn, address_transaction_to_path(ExplorerWeb.Endpoint, :index, :en, address.hash))
+
       assert conn.assigns.transactions.total_entries == 0
     end
 
@@ -60,7 +72,10 @@ defmodule ExplorerWeb.AddressTransactionToControllerTest do
       insert(:block_transaction, transaction: transaction, block: block)
       address = insert(:address)
       insert(:from_address, transaction: transaction, address: address)
-      conn = get(conn, address_transaction_to_path(ExplorerWeb.Endpoint, :index, :en, address.hash))
+
+      conn =
+        get(conn, address_transaction_to_path(ExplorerWeb.Endpoint, :index, :en, address.hash))
+
       assert conn.assigns.transactions.total_entries == 0
     end
   end

test/explorer_web/controllers/block_controller_test.exs

@@ -11,9 +11,11 @@ defmodule ExplorerWeb.BlockControllerTest do
 
   describe "GET index/2" do
     test "returns all blocks", %{conn: conn} do
-      block_ids = insert_list(4, :block) |> Enum.map(fn (block) -> block.number end) |> Enum.reverse
+      block_ids =
+        insert_list(4, :block) |> Enum.map(fn block -> block.number end) |> Enum.reverse()
+
       conn = get(conn, "/en/blocks")
-      assert conn.assigns.blocks |> Enum.map(fn (block) -> block.number end) == block_ids
+      assert conn.assigns.blocks |> Enum.map(fn block -> block.number end) == block_ids
     end
 
     test "returns a block with two transactions", %{conn: conn} do
@@ -23,7 +25,7 @@ defmodule ExplorerWeb.BlockControllerTest do
       other_transaction = insert(:transaction)
       insert(:block_transaction, block: block, transaction: other_transaction)
       conn = get(conn, "/en/blocks")
-      assert conn.assigns.blocks.entries |> Enum.count == 1
+      assert conn.assigns.blocks.entries |> Enum.count() == 1
     end
   end
 end

test/explorer_web/controllers/chain_controller_test.exs

@@ -1,11 +1,12 @@
 defmodule ExplorerWeb.ChainControllerTest do
   use ExplorerWeb.ConnCase
 
-  import ExplorerWeb.Router.Helpers, only: [chain_path: 3, block_path: 4, transaction_path: 4, address_path: 4]
+  import ExplorerWeb.Router.Helpers,
+    only: [chain_path: 3, block_path: 4, transaction_path: 4, address_path: 4]
 
   describe "GET index/2 without a locale" do
     test "redirects to the en locale", %{conn: conn} do
-      conn = get conn, "/"
+      conn = get(conn, "/")
 
       assert(redirected_to(conn) == "/en")
     end
@@ -13,14 +14,14 @@ defmodule ExplorerWeb.ChainControllerTest do
 
   describe "GET index/2 with a locale" do
     test "returns a welcome message", %{conn: conn} do
-      conn = get conn, chain_path(ExplorerWeb.Endpoint, :show, %{locale: :en})
+      conn = get(conn, chain_path(ExplorerWeb.Endpoint, :show, %{locale: :en}))
 
       assert(html_response(conn, 200) =~ "POA")
     end
 
     test "returns a block", %{conn: conn} do
       insert(:block, %{number: 23})
-      conn = get conn, "/en"
+      conn = get(conn, "/en")
 
       assert(List.first(conn.assigns.chain.blocks).number == 23)
     end
@@ -28,18 +29,23 @@ defmodule ExplorerWeb.ChainControllerTest do
     test "excludes all but the most recent five blocks", %{conn: conn} do
       old_block = insert(:block)
       insert_list(5, :block)
-      conn = get conn, "/en"
+      conn = get(conn, "/en")
 
       refute(Enum.member?(conn.assigns.chain.blocks, old_block))
     end
 
     test "only returns transactions with an associated block", %{conn: conn} do
       block = insert(:block, number: 33)
-      insert(:transaction, id: 10, hash: "0xDECAFBAD") |> with_block(block) |> with_addresses(%{to: "0xsleepypuppy", from: "0xilovefrogs"})
+
+      insert(:transaction, id: 10, hash: "0xDECAFBAD") |> with_block(block)
+      |> with_addresses(%{to: "0xsleepypuppy", from: "0xilovefrogs"})
+
       insert(:transaction, id: 30)
-      conn = get conn, "/en"
-      transaction_ids = conn.assigns.chain.transactions
-      |> Enum.map(fn (transaction) -> transaction.id end)
+      conn = get(conn, "/en")
+
+      transaction_ids =
+        conn.assigns.chain.transactions
+        |> Enum.map(fn transaction -> transaction.id end)
 
       assert(Enum.member?(transaction_ids, 10))
       refute(Enum.member?(transaction_ids, 30))
@@ -47,8 +53,11 @@ defmodule ExplorerWeb.ChainControllerTest do
 
     test "returns a transaction", %{conn: conn} do
       block = insert(:block, number: 33)
-      insert(:transaction, hash: "0xDECAFBAD") |> with_block(block) |> with_addresses(%{to: "0xsleepypuppy", from: "0xilovefrogs"})
-      conn = get conn, "/en"
+
+      insert(:transaction, hash: "0xDECAFBAD") |> with_block(block)
+      |> with_addresses(%{to: "0xsleepypuppy", from: "0xilovefrogs"})
+
+      conn = get(conn, "/en")
 
       assert(List.first(conn.assigns.chain.transactions).hash == "0xDECAFBAD")
     end
@@ -57,27 +66,27 @@ defmodule ExplorerWeb.ChainControllerTest do
   describe "GET q/2" do
     test "finds a block by block number", %{conn: conn} do
       insert(:block, number: 37)
-      conn = get conn, "/en/search?q=37"
+      conn = get(conn, "/en/search?q=37")
 
       assert redirected_to(conn) == block_path(conn, :show, "en", "37")
     end
 
     test "finds a transaction by hash", %{conn: conn} do
       transaction = insert(:transaction) |> with_block() |> with_addresses
-      conn = get conn, "/en/search?q=#{transaction.hash}"
+      conn = get(conn, "/en/search?q=#{transaction.hash}")
 
       assert redirected_to(conn) == transaction_path(conn, :show, "en", transaction.hash)
     end
 
     test "finds an address by hash", %{conn: conn} do
       address = insert(:address)
-      conn = get conn, "en/search?q=#{address.hash}"
+      conn = get(conn, "en/search?q=#{address.hash}")
 
       assert redirected_to(conn) == address_path(conn, :show, "en", address.hash)
     end
 
     test "redirects to 404 when it finds nothing", %{conn: conn} do
-      conn = get conn, "en/search?q=zaphod"
+      conn = get(conn, "en/search?q=zaphod")
       assert conn.status == 404
     end
   end

test/explorer_web/controllers/pending_transaction_controller_test.exs

@@ -51,7 +51,14 @@ defmodule ExplorerWeb.PendingTransactionControllerTest do
       transaction = insert(:transaction)
       insert(:to_address, transaction: transaction, address: address)
       insert(:from_address, transaction: transaction, address: address)
-      conn = get(conn, pending_transaction_path(ExplorerWeb.Endpoint, :index, :en), last_seen: transaction.id)
+
+      conn =
+        get(
+          conn,
+          pending_transaction_path(ExplorerWeb.Endpoint, :index, :en),
+          last_seen: transaction.id
+        )
+
       assert conn.assigns.transactions.entries == []
     end
   end

test/explorer_web/controllers/transaction_controller_test.exs

@@ -52,7 +52,9 @@ defmodule ExplorerWeb.TransactionControllerTest do
   end
 
   describe "GET show/3" do
-    test "when there is an associated block, it returns a transaction with block data", %{conn: conn} do
+    test "when there is an associated block, it returns a transaction with block data", %{
+      conn: conn
+    } do
       block = insert(:block, %{number: 777})
       transaction = insert(:transaction, hash: "0x8") |> with_block(block) |> with_addresses
       conn = get(conn, "/en/transactions/0x8")

test/explorer_web/features/contributor_browsing_test.exs

@@ -29,11 +29,15 @@ defmodule ExplorerWeb.UserListTest do
   end
 
   test "search for transactions", %{session: session} do
-    insert(:transaction, hash: "0xdeadbeef000000000000000000000000000000000", input: "socks") |> with_addresses()
+    insert(:transaction, hash: "0xdeadbeef000000000000000000000000000000000", input: "socks")
+    |> with_addresses()
 
     session
     |> visit("/")
-    |> fill_in(css(".header__cell--search-input"), with: "0xdeadbeef000000000000000000000000000000000")
+    |> fill_in(
+      css(".header__cell--search-input"),
+      with: "0xdeadbeef000000000000000000000000000000000"
+    )
     |> send_keys([:enter])
     |> assert_has(css(".transaction__item", text: "socks"))
   end
@@ -43,30 +47,42 @@ defmodule ExplorerWeb.UserListTest do
 
     session
     |> visit("/")
-    |> fill_in(css(".header__cell--search-input"), with: "0xBAADF00D00000000000000000000000000000000")
+    |> fill_in(
+      css(".header__cell--search-input"),
+      with: "0xBAADF00D00000000000000000000000000000000"
+    )
     |> send_keys([:enter])
     |> assert_has(css(".address__subheading", text: "0xBAADF00D00000000000000000000000000000000"))
   end
 
   test "views blocks", %{session: session} do
-    insert_list(4, :block, %{number: 1, timestamp: Timex.now |> Timex.shift(hours: -1), gas_used: 10})
-    fifth_block = insert(:block, %{
+    insert_list(4, :block, %{
+      number: 1,
+      timestamp: Timex.now() |> Timex.shift(hours: -1),
+      gas_used: 10
+    })
+
+    fifth_block =
+      insert(:block, %{
         number: 311,
         hash: "0xMrCoolBlock",
-      timestamp: Timex.now |> Timex.shift(hours: -1),
+        timestamp: Timex.now() |> Timex.shift(hours: -1),
         miner: "Heathcliff",
-      size: 9999999,
+        size: 9_999_999,
         nonce: "once upon a nonce",
-      gas_used: 1010101,
-      gas_limit: 5030101
+        gas_used: 1_010_101,
+        gas_limit: 5_030_101
       })
-    transaction = insert(:transaction, hash: "0xfaschtnacht") |> with_block(fifth_block) |> with_addresses
+
+    transaction =
+      insert(:transaction, hash: "0xfaschtnacht") |> with_block(fifth_block) |> with_addresses
+
     insert(:transaction, hash: "0xpaczki") |> with_block(fifth_block) |> with_addresses
     insert(:transaction) |> with_block(fifth_block) |> with_addresses
     insert(:receipt, transaction: transaction)
 
-    Credit.refresh
-    Debit.refresh
+    Credit.refresh()
+    Debit.refresh()
 
     session
     |> visit("/en")
@@ -80,7 +96,6 @@ defmodule ExplorerWeb.UserListTest do
     session
     |> click(link("Blocks"))
     |> assert_has(css(".blocks__column--height", text: "311"))
-
     |> click(link("311"))
     |> assert_has(css(".block__item", text: "0xMrCoolBlock"))
     |> assert_has(css(".block__item", text: "Heathcliff"))
@@ -89,32 +104,37 @@ defmodule ExplorerWeb.UserListTest do
     |> assert_has(css(".block__item", text: "5,030,101"))
     |> assert_has(css(".block__item", text: "once upon a nonce"))
     |> assert_has(css(".block__item", text: "1,010,101"))
-
     |> click(css(".block__link", text: "Transactions"))
     |> assert_has(css(".transactions__link--long-hash", text: "0xfaschtnacht"))
   end
 
   test "views transactions", %{session: session} do
-    block = insert(:block, %{
+    block =
+      insert(:block, %{
         number: 555,
-      timestamp: Timex.now |> Timex.shift(hours: -2),
-      gas_used: 123987,
+        timestamp: Timex.now() |> Timex.shift(hours: -2),
+        gas_used: 123_987
       })
+
     for _ <- 0..3, do: insert(:transaction) |> with_block(block) |> with_addresses
     insert(:transaction, hash: "0xC001", gas: 5891) |> with_block |> with_addresses
 
     lincoln = insert(:address, hash: "0xlincoln")
     taft = insert(:address, hash: "0xhowardtaft")
-    transaction = insert(:transaction,
+
+    transaction =
+      insert(
+        :transaction,
         hash: "0xSk8",
         value: 5656,
-      gas: 1230000000000123123,
-      gas_price: 7890000000898912300045,
+        gas: 1_230_000_000_000_123_123,
+        gas_price: 7_890_000_000_898_912_300_045,
         input: "0x00012",
         nonce: 99045,
         inserted_at: Timex.parse!("1970-01-01T00:00:18-00:00", "{ISO:Extended}"),
         updated_at: Timex.parse!("1980-01-01T00:00:18-00:00", "{ISO:Extended}")
       )
+
     insert(:block_transaction, block: block, transaction: transaction)
     insert(:from_address, address: taft, transaction: transaction)
     insert(:to_address, address: lincoln, transaction: transaction)
@@ -130,8 +150,8 @@ defmodule ExplorerWeb.UserListTest do
 
     internal = insert(:internal_transaction, transaction_id: transaction.id)
 
-    Credit.refresh
-    Debit.refresh
+    Credit.refresh()
+    Debit.refresh()
 
     session
     |> visit("/en")
@@ -139,15 +159,12 @@ defmodule ExplorerWeb.UserListTest do
     |> assert_has(css(".transactions__column--hash", count: 5))
     |> assert_has(css(".transactions__column--value", count: 5))
     |> assert_has(css(".transactions__column--age", count: 5, visible: false))
-
     |> visit("/transactions")
     |> click(css(".transactions__tab-link", text: "Pending"))
     |> click(css(".transactions__link", text: "0xC001"))
     |> assert_has(css(".transaction__item-value--status", text: "Pending"))
-
     |> visit("/transactions")
     |> refute_has(css(".transactions__column--block", text: "Pending"))
-
     |> click(link("0xSk8"))
     |> assert_has(css(".transaction__subheading", text: "0xSk8"))
     |> assert_has(css(".transaction__item", text: "123,987"))
@@ -163,20 +180,15 @@ defmodule ExplorerWeb.UserListTest do
     |> assert_has(css(".transaction__item", text: "block confirmations"))
     |> assert_has(css(".transaction__item", text: "48 years ago"))
     |> assert_has(css(".transaction__item", text: "38 years ago"))
-
     |> click(link("Internal Transactions"))
     |> assert_has(css(".internal-transaction__table", text: internal.call_type))
-
     |> visit("/en/transactions/0xSk8")
     |> click(link("Logs"))
     |> assert_has(css(".transaction-log__link", text: "0xlincoln"))
-
     |> click(link("0xlincoln"))
     |> assert_has(css(".address__subheading", text: "0xlincoln"))
-
     |> click(css(".address__link", text: "Transactions To"))
     |> assert_has(css(".transactions__link--long-hash", text: "0xSk8"))
-
     |> click(css(".address__link", text: "Transactions From"))
     |> assert_has(css(".transactions__link--long-hash", text: "0xrazerscooter"))
   end

test/explorer_web/views/error_view_test.exs

@@ -5,17 +5,14 @@ defmodule ExplorerWeb.ErrorViewTest do
   import Phoenix.View
 
   test "renders 404.html" do
-    assert render_to_string(ExplorerWeb.ErrorView, "404.html", []) ==
-           "Page not found"
+    assert render_to_string(ExplorerWeb.ErrorView, "404.html", []) == "Page not found"
   end
 
   test "render 500.html" do
-    assert render_to_string(ExplorerWeb.ErrorView, "500.html", []) ==
-           "Internal server error"
+    assert render_to_string(ExplorerWeb.ErrorView, "500.html", []) == "Internal server error"
   end
 
   test "render any other" do
-    assert render_to_string(ExplorerWeb.ErrorView, "505.html", []) ==
-           "Internal server error"
+    assert render_to_string(ExplorerWeb.ErrorView, "505.html", []) == "Internal server error"
   end
 end

test/support/channel_case.ex

@@ -25,13 +25,13 @@ defmodule ExplorerWeb.ChannelCase do
     end
   end
 
-
   setup tags do
     :ok = Ecto.Adapters.SQL.Sandbox.checkout(Explorer.Repo)
+
     unless tags[:async] do
       Ecto.Adapters.SQL.Sandbox.mode(Explorer.Repo, {:shared, self()})
     end
+
     :ok
   end
-
 end

test/support/conn_case.ex

@@ -31,9 +31,11 @@ defmodule ExplorerWeb.ConnCase do
   @dialyzer {:nowarn_function, __ex_unit_setup_0: 1}
   setup tags do
     :ok = Ecto.Adapters.SQL.Sandbox.checkout(Explorer.Repo)
+
     unless tags[:async] do
       Ecto.Adapters.SQL.Sandbox.mode(Explorer.Repo, {:shared, self()})
     end
+
     {:ok, conn: Phoenix.ConnTest.build_conn()}
   end
 end

test/support/factories/block_factory.ex

@@ -13,7 +13,7 @@ defmodule Explorer.BlockFactory do
           size: Enum.random(1..100_000),
           gas_limit: Enum.random(1..100_000),
           gas_used: Enum.random(1..100_000),
-          timestamp: DateTime.utc_now,
+          timestamp: DateTime.utc_now()
         }
       end
     end

test/support/factories/internal_transaction_factory.ex

@@ -13,7 +13,7 @@ defmodule Explorer.InternalTransactionFactory do
           gas: Enum.random(1..100_000),
           gas_used: Enum.random(1..100_000),
           input: sequence("0x"),
-          output: sequence("0x"),
+          output: sequence("0x")
         }
       end
     end

test/support/factories/log_factory.ex

@@ -9,7 +9,7 @@ defmodule Explorer.LogFactory do
           first_topic: nil,
           second_topic: nil,
           third_topic: nil,
-          fourth_topic: nil,
+          fourth_topic: nil
         }
       end
     end

test/support/factories/receipt_factory.ex

@@ -6,7 +6,7 @@ defmodule Explorer.ReceiptFactory do
           cumulative_gas_used: Enum.random(21_000..100_000),
           gas_used: Enum.random(21_000..100_000),
           status: Enum.random(1..2),
-          index: sequence(""),
+          index: sequence("")
         }
       end
     end

test/support/factories/transaction_factory.ex

@@ -18,13 +18,21 @@ defmodule Explorer.TransactionFactory do
           s: sequence("0x"),
           standard_v: sequence("0x"),
           transaction_index: sequence("0x"),
-          v: sequence("0x"),
+          v: sequence("0x")
         }
       end
 
       def with_addresses(transaction, %{to: to, from: from} \\ %{to: nil, from: nil}) do
-        to_address = if to, do: Repo.get_by(Address, %{hash: to}) || insert(:address, hash: to), else: insert(:address)
-        from_address = if from, do: Repo.get_by(Address, %{hash: from}) ||insert(:address, hash: from), else: insert(:address)
+        to_address =
+          if to,
+            do: Repo.get_by(Address, %{hash: to}) || insert(:address, hash: to),
+            else: insert(:address)
+
+        from_address =
+          if from,
+            do: Repo.get_by(Address, %{hash: from}) || insert(:address, hash: from),
+            else: insert(:address)
+
         insert(:to_address, %{transaction_id: transaction.id, address_id: to_address.id})
         insert(:from_address, %{transaction_id: transaction.id, address_id: from_address.id})
         transaction
@@ -37,7 +45,7 @@ defmodule Explorer.TransactionFactory do
       end
 
       def list_with_block(transactions, block \\ nil) do
-        Enum.map(transactions, fn(transaction) -> with_block(transaction, block) end)
+        Enum.map(transactions, fn transaction -> with_block(transaction, block) end)
       end
     end
   end

test/test_helper.exs

@@ -1,8 +1,8 @@
 ExUnit.configure(formatters: [JUnitFormatter, ExUnit.CLIFormatter])
-ExUnit.start
+ExUnit.start()
 
 {:ok, _} = Application.ensure_all_started(:wallaby)
-Application.put_env(:wallaby, :base_url, ExplorerWeb.Endpoint.url)
+Application.put_env(:wallaby, :base_url, ExplorerWeb.Endpoint.url())
 
 {:ok, _} = Application.ensure_all_started(:ex_machina)