Blockchain explorer for Ethereum based network and a tool for inspecting and analyzing EVM based blockchains.
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blockscout/apps/ethereum_jsonrpc/test/ethereum_jsonrpc_test.exs

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defmodule EthereumJSONRPCTest do
use EthereumJSONRPC.Case, async: true
import EthereumJSONRPC.Case
import Mox
alias EthereumJSONRPC.{Blocks, FetchedBalances, FetchedBeneficiaries, FetchedCodes, Subscription}
alias EthereumJSONRPC.WebSocket.WebSocketClient
setup :verify_on_exit!
@moduletag :capture_log
describe "fetch_balances/1" do
test "with all valid hash_data returns {:ok, addresses_params}", %{
json_rpc_named_arguments: json_rpc_named_arguments
} do
expected_fetched_balance =
case Keyword.fetch!(json_rpc_named_arguments, :variant) do
EthereumJSONRPC.Geth -> 0
EthereumJSONRPC.Parity -> 1
variant -> raise ArgumentError, "Unsupported variant (#{variant}})"
end
if json_rpc_named_arguments[:transport] == EthereumJSONRPC.Mox do
expect(EthereumJSONRPC.Mox, :json_rpc, fn _json, _options ->
{:ok, [%{id: 0, result: EthereumJSONRPC.integer_to_quantity(expected_fetched_balance)}]}
end)
end
hash = "0x8bf38d4764929064f2d4d3a56520a76ab3df415b"
assert EthereumJSONRPC.fetch_balances(
[
%{block_quantity: "0x1", hash_data: hash}
],
json_rpc_named_arguments
) ==
{:ok,
%FetchedBalances{
params_list: [
%{
address_hash: hash,
block_number: 1,
value: expected_fetched_balance
}
]
}}
end
test "with all invalid hash_data returns errors", %{json_rpc_named_arguments: json_rpc_named_arguments} do
variant = Keyword.fetch!(json_rpc_named_arguments, :variant)
expected_message =
case variant do
EthereumJSONRPC.Geth ->
"invalid argument 0: json: cannot unmarshal hex string of odd length into Go value of type common.Address"
EthereumJSONRPC.Parity ->
"Invalid params: invalid length 1, expected a 0x-prefixed, padded, hex-encoded hash with length 40."
_ ->
raise ArgumentError, "Unsupported variant (#{variant}})"
end
if json_rpc_named_arguments[:transport] == EthereumJSONRPC.Mox do
expect(EthereumJSONRPC.Mox, :json_rpc, fn _json, _options ->
{:ok,
[
%{
id: 0,
error: %{
code: -32602,
message: expected_message
}
}
]}
end)
end
assert {:ok,
%FetchedBalances{
errors: [
%{
code: -32602,
data: %{hash_data: "0x0", block_quantity: "0x1"},
message: ^expected_message
}
],
params_list: []
}} =
EthereumJSONRPC.fetch_balances([%{block_quantity: "0x1", hash_data: "0x0"}], json_rpc_named_arguments)
end
test "with a mix of valid and invalid hash_data returns both", %{
json_rpc_named_arguments: json_rpc_named_arguments
} do
if json_rpc_named_arguments[:transport] == EthereumJSONRPC.Mox do
expect(EthereumJSONRPC.Mox, :json_rpc, fn _json, _options ->
{
:ok,
[
%{
id: 0,
result: "0x0"
},
%{
id: 1,
result: "0x1"
},
%{
id: 2,
error: %{
code: -32602,
message:
"Invalid params: invalid length 1, expected a 0x-prefixed, padded, hex-encoded hash with length 40."
}
},
%{
id: 3,
result: "0x3"
},
%{
id: 4,
error: %{
code: -32602,
message:
"Invalid params: invalid length 1, expected a 0x-prefixed, padded, hex-encoded hash with length 40."
}
}
]
}
end)
end
assert {:ok, %FetchedBalances{params_list: params_list, errors: errors}} =
EthereumJSONRPC.fetch_balances(
[
# start with :ok
%{
block_quantity: "0x1",
hash_data: "0x8bf38d4764929064f2d4d3a56520a76ab3df415b"
},
# :ok, :ok clause
%{
block_quantity: "0x34",
hash_data: "0xe8ddc5c7a2d2f0d7a9798459c0104fdf5e987aca"
},
# :ok, :error clause
%{
block_quantity: "0x2",
hash_data: "0x3"
},
# :error, :ok clause
%{
block_quantity: "0x35",
hash_data: "0x8bf38d4764929064f2d4d3a56520a76ab3df415b"
},
# :error, :error clause
%{
block_quantity: "0x4",
hash_data: "0x5"
}
],
json_rpc_named_arguments
)
assert is_list(params_list)
assert length(params_list) > 1
assert is_list(errors)
assert length(errors) > 1
end
end
describe "fetch_codes/2" do
@tag :no_parity
test "returns both codes and errors", %{
json_rpc_named_arguments: json_rpc_named_arguments
} do
code =
"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"
if json_rpc_named_arguments[:transport] == EthereumJSONRPC.Mox do
expect(EthereumJSONRPC.Mox, :json_rpc, fn _json, _options ->
{
:ok,
[
%{
id: 0,
result: code
},
%{
id: 1,
error: %{
code: -32602,
message:
"Invalid params: invalid length 1, expected a 0x-prefixed, padded, hex-encoded hash with length 40."
}
}
]
}
end)
end
assert {:ok, %FetchedCodes{params_list: params_list, errors: errors}} =
EthereumJSONRPC.fetch_codes(
[
# start with :ok
%{
block_quantity: "0x6ae753",
address: "0xe82719202e5965Cf5D9B6673B7503a3b92DE20be"
},
# :ok, :error clause
%{
block_quantity: "0x2",
address: ""
}
# :error
],
json_rpc_named_arguments
)
assert params_list == [
%{
address: "0xe82719202e5965Cf5D9B6673B7503a3b92DE20be",
block_number: 7_006_035,
code: code
}
]
assert Enum.count(errors) == 1
end
end
describe "fetch_beneficiaries/2" do
@tag :no_geth
test "fetches benefeciaries from variant API", %{json_rpc_named_arguments: json_rpc_named_arguments} do
if json_rpc_named_arguments[:transport] == EthereumJSONRPC.Mox do
expect(EthereumJSONRPC.Mox, :json_rpc, fn _, _ ->
{:ok, []}
end)
assert EthereumJSONRPC.fetch_beneficiaries([1], json_rpc_named_arguments) ==
{:ok, %FetchedBeneficiaries{params_set: MapSet.new(), errors: []}}
end
end
end
describe "fetch_block_by_hash/2" do
test "can fetch blocks", %{json_rpc_named_arguments: json_rpc_named_arguments} do
%{block_hash: block_hash, transaction_hash: transaction_hash} =
case Keyword.fetch!(json_rpc_named_arguments, :variant) do
EthereumJSONRPC.Parity ->
%{
block_hash: "0x29c850324e357f3c0c836d79860c5af55f7b651e5d7ee253c1af1b14908af49c",
transaction_hash: "0xa2e81bb56b55ba3dab2daf76501b50dfaad240cccb905dbf89d65c7a84a4a48e"
}
EthereumJSONRPC.Geth ->
%{
block_hash: "0xe065eed62c152c8c3dd14d6e5948e652c3e36a9cdb10b79853802ef9fa1d536c",
transaction_hash: "0x615506d9872bb07faa2ce17c02b902148eae88ccba0298902be6a0dbba1124de"
}
end
if json_rpc_named_arguments[:transport] == EthereumJSONRPC.Mox do
expect(EthereumJSONRPC.Mox, :json_rpc, fn [%{id: id}], _options ->
block_number = "0x0"
{:ok,
[
%{
id: id,
result: %{
"difficulty" => "0x0",
"gasLimit" => "0x0",
"gasUsed" => "0x0",
"hash" => block_hash,
"extraData" => "0x0",
"logsBloom" => "0x0",
"miner" => "0x0",
"number" => block_number,
"parentHash" => "0x0",
"receiptsRoot" => "0x0",
"size" => "0x0",
"sha3Uncles" => "0x0",
"stateRoot" => "0x0",
"timestamp" => "0x0",
"totalDifficulty" => "0x0",
"transactions" => [
%{
"blockHash" => block_hash,
"blockNumber" => block_number,
"from" => "0x0",
"gas" => "0x0",
"gasPrice" => "0x0",
"hash" => transaction_hash,
"input" => "0x",
"nonce" => "0x0",
"r" => "0x0",
"s" => "0x0",
"to" => "0x0",
"transactionIndex" => "0x0",
"v" => "0x0",
"value" => "0x0"
}
],
"transactionsRoot" => "0x0",
"uncles" => []
}
}
]}
end)
end
assert {:ok, %Blocks{blocks_params: [_ | _], transactions_params: [_ | _]}} =
EthereumJSONRPC.fetch_blocks_by_hash([block_hash], json_rpc_named_arguments)
end
test "returns errors with block hash in data", %{json_rpc_named_arguments: json_rpc_named_arguments} do
if json_rpc_named_arguments[:transport] == EthereumJSONRPC.Mox do
expect(EthereumJSONRPC.Mox, :json_rpc, fn _json, _options ->
{:ok,
[
%{
error: %{
code: -32602,
message: "Hash too short"
},
id: 0,
jsonrpc: "2.0"
}
]}
end)
end
hash = "0x0"
assert {:ok,
%Blocks{
errors: [
%{
data: %{
hash: ^hash
}
}
]
}} = EthereumJSONRPC.fetch_blocks_by_hash([hash], json_rpc_named_arguments)
end
test "full batch errors are returned", %{json_rpc_named_arguments: json_rpc_named_arguments} do
# I'm not sure how to reliably trigger this on the real chains, so only do mox
moxed_json_rpc_named_arguments = Keyword.put(json_rpc_named_arguments, :transport, EthereumJSONRPC.Mox)
error = {:error, %{"message" => "methodNotSupported"}}
expect(EthereumJSONRPC.Mox, :json_rpc, fn _json, _options ->
error
end)
assert EthereumJSONRPC.fetch_blocks_by_hash(["0x0"], moxed_json_rpc_named_arguments) == error
end
end
describe "fetch_block_by_range/2" do
test "returns errors with block number in data", %{json_rpc_named_arguments: json_rpc_named_arguments} do
if json_rpc_named_arguments[:transport] == EthereumJSONRPC.Mox do
expect(EthereumJSONRPC.Mox, :json_rpc, fn _json, _options ->
{:ok,
[
%{
error: %{
code: -32602,
message: "Invalid params: Invalid block number: number too large to fit in target type."
},
id: 0,
jsonrpc: "2.0"
},
%{
error: %{
code: -32602,
message: "Invalid params: Invalid block number: number too large to fit in target type."
},
id: 1,
jsonrpc: "2.0"
}
]}
end)
end
assert {:ok,
%EthereumJSONRPC.Blocks{
block_second_degree_relations_params: [],
blocks_params: [],
errors: [
%{
data: %{number: 1_000_000_000_000_000_000_001}
},
%{
data: %{number: 1_000_000_000_000_000_000_000}
}
],
transactions_params: []
}} =
EthereumJSONRPC.fetch_blocks_by_range(
1_000_000_000_000_000_000_000..1_000_000_000_000_000_000_001,
json_rpc_named_arguments
)
end
test "returns only errors and results if a mix of results and errors", %{
json_rpc_named_arguments: json_rpc_named_arguments
} do
# Can't be faked reliably on real chain
moxed_json_rpc_named_arguments = Keyword.put(json_rpc_named_arguments, :transport, EthereumJSONRPC.Mox)
expect(EthereumJSONRPC.Mox, :json_rpc, fn _json, _options ->
{:ok,
[
%{
error: %{
code: -32602,
message: "Invalid params: Invalid block number: number too large to fit in target type."
},
id: 0,
jsonrpc: "2.0"
},
%{
id: 1,
result: %{
"difficulty" => "0x0",
"extraData" => "0x",
"gasLimit" => "0x0",
"gasUsed" => "0x0",
"hash" => "0x0",
"logsBloom" => "0x",
"miner" => "0x0",
"number" => "0x0",
"parentHash" => "0x0",
"receiptsRoot" => "0x0",
"sha3Uncles" => "0x0",
"size" => "0x0",
"stateRoot" => "0x0",
"timestamp" => "0x0",
"totalDifficulty" => "0x0",
"transactions" => [],
"transactionsRoot" => [],
"uncles" => []
},
jsonrpc: "2.0"
}
]}
end)
assert {:ok,
%EthereumJSONRPC.Blocks{
block_second_degree_relations_params: [],
blocks_params: [
%{
difficulty: 0,
extra_data: "0x",
gas_limit: 0,
gas_used: 0,
hash: "0x0",
logs_bloom: "0x",
miner_hash: "0x0",
mix_hash: "0x0",
nonce: 0,
number: 0,
parent_hash: "0x0",
receipts_root: "0x0",
sha3_uncles: "0x0",
size: 0,
state_root: "0x0",
timestamp: _,
total_difficulty: 0,
transactions_root: [],
uncles: []
}
],
errors: [
%{
code: -32602,
data: %{number: 1_000_000_000_000_000_000_000},
message: "Invalid params: Invalid block number: number too large to fit in target type."
}
],
transactions_params: []
}} =
EthereumJSONRPC.fetch_blocks_by_range(
1_000_000_000_000_000_000_000..1_000_000_000_000_000_000_001,
moxed_json_rpc_named_arguments
)
end
test "nil result indicated error code 404", %{json_rpc_named_arguments: json_rpc_named_arguments} do
# Can't be faked reliably on real chain
moxed_json_rpc_named_arguments = Keyword.put(json_rpc_named_arguments, :transport, EthereumJSONRPC.Mox)
expect(EthereumJSONRPC.Mox, :json_rpc, fn _json, _options ->
{:ok,
[
%{
id: 0,
result: %{
"difficulty" => "0x0",
"extraData" => "0x0",
"gasLimit" => "0x0",
"gasUsed" => "0x0",
"hash" => "0x0",
"logsBloom" => "0x0",
"miner" => "0x0",
"number" => "0x0",
"parentHash" => "0x0",
"receiptsRoot" => "0x0",
"sha3Uncles" => "0x0",
"size" => "0x0",
"stateRoot" => "0x0",
"timestamp" => "0x0",
"totalDifficulty" => "0x0",
"transactions" => [],
"transactionsRoot" => "0x0",
"uncles" => []
},
jsonrpc: "2.0"
},
%{
result: nil,
id: 1,
jsonrpc: "2.0"
}
]}
end)
assert {:ok,
%EthereumJSONRPC.Blocks{
block_second_degree_relations_params: [],
blocks_params: [%{}],
errors: [%{code: 404, data: %{number: 1}, message: "Not Found"}],
transactions_params: []
}} = EthereumJSONRPC.fetch_blocks_by_range(0..1, moxed_json_rpc_named_arguments)
end
end
describe "fetch_block_number_by_tag" do
@tag capture_log: false
test "with earliest", %{json_rpc_named_arguments: json_rpc_named_arguments} do
if json_rpc_named_arguments[:transport] == EthereumJSONRPC.Mox do
expect(EthereumJSONRPC.Mox, :json_rpc, fn _json, _options ->
{:ok, %{"number" => "0x0"}}
end)
end
log_bad_gateway(
fn -> EthereumJSONRPC.fetch_block_number_by_tag("earliest", json_rpc_named_arguments) end,
fn result ->
assert {:ok, 0} = result
end
)
end
@tag capture_log: false
test "with latest", %{json_rpc_named_arguments: json_rpc_named_arguments} do
if json_rpc_named_arguments[:transport] == EthereumJSONRPC.Mox do
expect(EthereumJSONRPC.Mox, :json_rpc, fn _json, _options ->
{:ok, %{"number" => "0x1"}}
end)
end
log_bad_gateway(
fn -> EthereumJSONRPC.fetch_block_number_by_tag("latest", json_rpc_named_arguments) end,
fn result ->
assert {:ok, number} = result
assert number > 0
end
)
end
@tag capture_log: false
test "with pending", %{json_rpc_named_arguments: json_rpc_named_arguments} do
if json_rpc_named_arguments[:transport] == EthereumJSONRPC.Mox do
expect(EthereumJSONRPC.Mox, :json_rpc, fn _json, _options ->
{:ok, nil}
end)
end
log_bad_gateway(
fn -> EthereumJSONRPC.fetch_block_number_by_tag("pending", json_rpc_named_arguments) end,
fn
# Parity after https://github.com/paritytech/parity-ethereum/pull/8281 and anything spec-compliant
{:error, reason} ->
assert reason == :not_found
# Parity before https://github.com/paritytech/parity-ethereum/pull/8281
{:ok, number} ->
assert is_integer(number)
assert number > 0
end
)
end
test "unknown errors are returned", %{json_rpc_named_arguments: json_rpc_named_arguments} do
# Can't be faked reliably on real chain
moxed_json_rpc_named_arguments = Keyword.put(json_rpc_named_arguments, :transport, EthereumJSONRPC.Mox)
unknown_error = {:error, %{"code" => 500, "message" => "Unknown error"}}
expect(EthereumJSONRPC.Mox, :json_rpc, fn _json, _options ->
unknown_error
end)
assert {:error, unknown_error} =
EthereumJSONRPC.fetch_block_number_by_tag("latest", moxed_json_rpc_named_arguments)
end
end
describe "fetch_pending_transactions/2" do
@tag :no_geth
test "pending transactions are returned", %{json_rpc_named_arguments: json_rpc_named_arguments} do
if json_rpc_named_arguments[:transport] == EthereumJSONRPC.Mox do
expect(EthereumJSONRPC.Mox, :json_rpc, fn _json, _options ->
{:ok,
[
%{
"blockHash" => nil,
"blockNumber" => nil,
"from" => "0x0",
"gas" => "0x0",
"gasPrice" => "0x0",
"hash" => "0x73c5599001f77bd570e32c4a5e63157200747910a502fae009821767c36b2ac9",
"input" => "0x",
"nonce" => "0x0",
"r" => "0x0",
"s" => "0x0",
"to" => "0x0",
"transactionIndex" => nil,
"v" => "0x0",
"value" => "0x0"
}
]}
end)
end
assert {:ok, pending_transactions} = EthereumJSONRPC.fetch_pending_transactions(json_rpc_named_arguments)
# can't say more because there could be no pending transactions on test chains
assert is_list(pending_transactions)
end
end
describe "fetch_transaction_receipts/2" do
test "with invalid transaction hash", %{json_rpc_named_arguments: json_rpc_named_arguments} do
hash = "0x0000000000000000000000000000000000000000000000000000000000000000"
if json_rpc_named_arguments[:transport] == EthereumJSONRPC.Mox do
expect(EthereumJSONRPC.Mox, :json_rpc, fn _json, _options ->
{:ok, [%{id: 0, jsonrpc: "2.0", result: nil}]}
end)
end
assert {:error, [%{data: %{hash: ^hash}, message: "Not Found"}]} =
EthereumJSONRPC.fetch_transaction_receipts(
[%{hash: hash, gas: "0x0"}],
json_rpc_named_arguments
)
end
test "with valid transaction hash", %{json_rpc_named_arguments: json_rpc_named_arguments} do
hash =
case Keyword.fetch!(json_rpc_named_arguments, :variant) do
EthereumJSONRPC.Parity ->
"0xa2e81bb56b55ba3dab2daf76501b50dfaad240cccb905dbf89d65c7a84a4a48e"
EthereumJSONRPC.Geth ->
"0x615506d9872bb07faa2ce17c02b902148eae88ccba0298902be6a0dbba1124de"
end
if json_rpc_named_arguments[:transport] == EthereumJSONRPC.Mox do
expect(EthereumJSONRPC.Mox, :json_rpc, fn _json, _options ->
{:ok,
[
%{
id: 0,
jsonrpc: "2.0",
result: %{
"blockHash" => "0x29c850324e357f3c0c836d79860c5af55f7b651e5d7ee253c1af1b14908af49c",
"blockNumber" => "0x414911",
"contractAddress" => nil,
"cumulativeGasUsed" => "0x5208",
"gasUsed" => "0x5208",
"logs" => [],
"logsBloom" =>
"0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
"root" => nil,
"status" => "0x1",
"transactionHash" => hash,
"transactionIndex" => "0x0"
}
}
]}
end)
end
assert {:ok, %{logs: logs, receipts: [_]}} =
EthereumJSONRPC.fetch_transaction_receipts([%{hash: hash, gas: "0x0"}], json_rpc_named_arguments)
assert is_list(logs)
end
end
describe "subscribe/2" do
test "can subscribe to newHeads", %{subscribe_named_arguments: subscribe_named_arguments} do
transport = Keyword.fetch!(subscribe_named_arguments, :transport)
transport_options = subscribe_named_arguments[:transport_options]
subscriber_pid = self()
subscription_transport_options =
case transport do
EthereumJSONRPC.Mox ->
expect(transport, :subscribe, fn "newHeads", [], _ ->
{:ok,
%Subscription{
reference: make_ref(),
subscriber_pid: subscriber_pid,
transport: transport,
transport_options: transport_options
}}
end)
transport_options
EthereumJSONRPC.WebSocket ->
update_in(transport_options.web_socket_options, fn %WebSocketClient.Options{} = web_socket_options ->
%WebSocketClient.Options{web_socket_options | event: "newHeads", params: []}
end)
end
assert {:ok,
%Subscription{
reference: subscription_reference,
subscriber_pid: ^subscriber_pid,
transport: ^transport,
transport_options: ^subscription_transport_options
}} = EthereumJSONRPC.subscribe("newHeads", subscribe_named_arguments)
assert is_reference(subscription_reference)
end
# Infura timeouts on 2018-09-12
@tag :no_geth
test "delivers new heads to caller", %{
block_interval: block_interval,
subscribe_named_arguments: subscribe_named_arguments
} do
transport = Keyword.fetch!(subscribe_named_arguments, :transport)
transport_options = subscribe_named_arguments[:transport_options]
subscriber_pid = self()
if transport == EthereumJSONRPC.Mox do
expect(transport, :subscribe, fn _, _, _ ->
subscription = %Subscription{
reference: make_ref(),
subscriber_pid: subscriber_pid,
transport: transport,
transport_options: transport_options
}
Process.send_after(subscriber_pid, {subscription, {:ok, %{"number" => "0x1"}}}, block_interval)
{:ok, subscription}
end)
end
assert {:ok, subscription} = EthereumJSONRPC.subscribe("newHeads", subscribe_named_arguments)
assert_receive {^subscription, {:ok, %{"number" => _}}}, block_interval * 2
end
end
describe "unsubscribe/2" do
# Infura timeouts on 2018-09-10
@tag :no_geth
test "can unsubscribe", %{subscribe_named_arguments: subscribe_named_arguments} do
transport = Keyword.fetch!(subscribe_named_arguments, :transport)
transport_options = subscribe_named_arguments[:transport_options]
subscriber_pid = self()
if transport == EthereumJSONRPC.Mox do
subscription = %Subscription{
reference: make_ref(),
subscriber_pid: subscriber_pid,
transport: transport,
transport_options: transport_options
}
transport
|> expect(:subscribe, fn _, _, _ -> {:ok, subscription} end)
|> expect(:unsubscribe, fn ^subscription -> :ok end)
end
assert {:ok, subscription} = EthereumJSONRPC.subscribe("newHeads", subscribe_named_arguments)
assert :ok = EthereumJSONRPC.unsubscribe(subscription)
end
# Infura timeouts on 2018-09-10
@tag :no_geth
test "stops messages being sent to subscriber", %{
block_interval: block_interval,
subscribe_named_arguments: subscribe_named_arguments
} do
transport = Keyword.fetch!(subscribe_named_arguments, :transport)
subscriber_pid = self()
if transport == EthereumJSONRPC.Mox do
subscription = %Subscription{
reference: make_ref(),
subscriber_pid: subscriber_pid,
transport: transport,
transport_options: Keyword.fetch!(subscribe_named_arguments, :transport_options)
}
{:ok, pid} = Task.start_link(EthereumJSONRPC.WebSocket.Case.Mox, :loop, [%{}])
transport
|> expect(:subscribe, 2, fn "newHeads", [], _ ->
send(pid, {:subscribe, subscription})
{:ok, subscription}
end)
|> expect(:unsubscribe, fn ^subscription ->
send(pid, {:unsubscribe, subscription})
:ok
end)
end
assert {:ok, first_subscription} = EthereumJSONRPC.subscribe("newHeads", [], subscribe_named_arguments)
assert {:ok, second_subscription} = EthereumJSONRPC.subscribe("newHeads", [], subscribe_named_arguments)
wait = block_interval * 2
assert_receive {^first_subscription, {:ok, %{"number" => _}}}, wait
assert_receive {^second_subscription, {:ok, %{"number" => _}}}, wait
assert :ok = EthereumJSONRPC.unsubscribe(first_subscription)
clear_mailbox()
# see the message on the second subscription, so that we don't have to wait for the refute_receive, which would
# wait the full timeout
assert_receive {^second_subscription, {:ok, %{"number" => _}}}, wait
refute_receive {^first_subscription, _}
end
test "return error if already unsubscribed", %{subscribe_named_arguments: subscribe_named_arguments} do
transport = Keyword.fetch!(subscribe_named_arguments, :transport)
transport_options = subscribe_named_arguments[:transport_options]
subscriber_pid = self()
if transport == EthereumJSONRPC.Mox do
subscription = %Subscription{
reference: make_ref(),
subscriber_pid: subscriber_pid,
transport: transport,
transport_options: transport_options
}
transport
|> expect(:subscribe, fn _, _, _ -> {:ok, subscription} end)
|> expect(:unsubscribe, fn ^subscription -> :ok end)
|> expect(:unsubscribe, fn ^subscription -> {:error, :not_found} end)
end
assert {:ok, subscription} = EthereumJSONRPC.subscribe("newHeads", [], subscribe_named_arguments)
assert :ok = EthereumJSONRPC.unsubscribe(subscription)
assert {:error, :not_found} = EthereumJSONRPC.unsubscribe(subscription)
end
end
describe "unique_request_id" do
test "returns integer" do
assert is_integer(EthereumJSONRPC.unique_request_id())
end
end
describe "fetch_net_version/1" do
test "fetches net version", %{json_rpc_named_arguments: json_rpc_named_arguments} do
if json_rpc_named_arguments[:transport] == EthereumJSONRPC.Mox do
expect(EthereumJSONRPC.Mox, :json_rpc, fn _json, _options ->
{:ok, "1"}
end)
end
assert {:ok, 1} = EthereumJSONRPC.fetch_net_version(json_rpc_named_arguments)
end
end
defp clear_mailbox do
receive do
_ -> clear_mailbox()
after
0 ->
:ok
end
end
end