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85 lines
2.7 KiB
85 lines
2.7 KiB
7 years ago
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defmodule Explorer.ChainTest do
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use Explorer.DataCase
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alias Explorer.Chain
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alias Timex.Duration
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describe "fetch/0" do
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test "returns -1 for the number when there are no blocks" do
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chain = Chain.fetch()
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assert chain.number == -1
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end
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test "returns the highest block number when there is a block" do
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insert(:block, number: 1)
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insert(:block, number: 100)
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chain = Chain.fetch()
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assert chain.number == 100
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end
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test "returns the latest block timestamp" do
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time = DateTime.utc_now()
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insert(:block, timestamp: time)
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chain = Chain.fetch()
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assert Timex.diff(chain.timestamp, time, :seconds) == 0
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end
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test "returns the average time between blocks" do
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time = DateTime.utc_now()
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next_time = Timex.shift(time, seconds: 5)
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insert(:block, timestamp: time)
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insert(:block, timestamp: next_time)
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chain = Chain.fetch()
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assert chain.average_time == %Duration{
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seconds: 5,
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megaseconds: 0,
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microseconds: 0
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}
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end
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test "returns the count of transactions from blocks in the last day" do
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time = DateTime.utc_now()
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last_week = Timex.shift(time, days: -8)
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block = insert(:block, timestamp: time)
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old_block = insert(:block, timestamp: last_week)
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transaction = insert(:transaction)
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old_transaction = insert(:transaction)
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insert(:block_transaction, block: block, transaction: transaction)
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insert(:block_transaction, block: old_block, transaction: old_transaction)
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chain = Chain.fetch()
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assert chain.transaction_count == 1
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end
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test "returns the number of skipped blocks" do
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insert(:block, %{number: 0})
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insert(:block, %{number: 2})
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chain = Chain.fetch()
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assert chain.skipped_blocks == 1
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end
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test "returns the lag between validation and insertion time" do
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validation_time = DateTime.utc_now()
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inserted_at = validation_time |> Timex.shift(seconds: 5)
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insert(:block, timestamp: validation_time, inserted_at: inserted_at)
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chain = Chain.fetch()
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assert chain.lag == %Duration{seconds: 5, megaseconds: 0, microseconds: 0}
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end
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test "returns the number of blocks inserted in the last minute" do
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old_inserted_at = Timex.shift(DateTime.utc_now(), days: -1)
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insert(:block, inserted_at: old_inserted_at)
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insert(:block)
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chain = Chain.fetch()
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assert chain.block_velocity == 1
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end
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test "returns the number of transactions inserted in the last minute" do
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old_inserted_at = Timex.shift(DateTime.utc_now(), days: -1)
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insert(:transaction, inserted_at: old_inserted_at)
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insert(:transaction)
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chain = Chain.fetch()
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assert chain.transaction_velocity == 1
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end
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end
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end
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