Maxim Filonov
1 year ago
parent
94a76bf982
commit
843430cf33
@ -0,0 +1,31 @@ |
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defmodule Explorer.Chain.Cache.RootstockLockedBTC do |
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@moduledoc """ |
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Caches the number of BTC locked in 2WP on Rootstock chain. |
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""" |
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require Logger |
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alias Explorer.Chain |
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alias Explorer.Chain.{Address, Wei} |
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use Explorer.Chain.MapCache, |
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name: :locked_rsk, |
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key: :locked_value, |
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global_ttl: Application.get_env(:explorer, __MODULE__)[:global_ttl], |
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ttl_check_interval: :timer.seconds(1) |
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defp handle_fallback(:locked_value) do |
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rootstock_bridge_address_str = Application.get_env(:explorer, Explorer.Chain.Transaction)[:rootstock_bridge_address] |
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rootstock_locking_cap = Application.get_env(:explorer, __MODULE__)[:locking_cap] |> Decimal.new() |
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with {:ok, rootstock_bridge_address_hash} <- Chain.string_to_address_hash(rootstock_bridge_address_str), |
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{:ok, %Address{fetched_coin_balance: balance}} when not is_nil(balance) <- |
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Chain.hash_to_address(rootstock_bridge_address_hash) do |
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{:update, rootstock_locking_cap |> Wei.from(:ether) |> Wei.sub(balance)} |
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else |
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_ -> |
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{:return, nil} |
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end |
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end |
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defp handle_fallback(_key), do: {:return, nil} |
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end |
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@ -0,0 +1,38 @@ |
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defmodule Explorer.Chain.Cache.RootstockLockedBTCTest do |
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use Explorer.DataCase |
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alias Explorer.Chain.Cache.RootstockLockedBTC |
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alias Explorer.Chain.{Transaction, Wei} |
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@bridge_address "0x0000000000000000000000000000000001000006" |
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setup do |
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transaction_configuration = Application.get_env(:explorer, Transaction) |
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Application.put_env(:explorer, Transaction, rootstock_bridge_address: @bridge_address) |
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:ok |
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Supervisor.terminate_child(Explorer.Supervisor, RootstockLockedBTC.child_id()) |
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Supervisor.restart_child(Explorer.Supervisor, RootstockLockedBTC.child_id()) |
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on_exit(fn -> |
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Application.put_env(:explorer, Transaction, transaction_configuration) |
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end) |
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:ok |
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end |
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test "returns nil in case if there is no bridged address in the database" do |
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result = RootstockLockedBTC.get_locked_value() |
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assert is_nil(result) |
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end |
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test "updates cache if initial value is zero and returns converted wei" do |
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insert(:address, hash: @bridge_address, fetched_coin_balance: 42_000_000_000_000_000_000) |
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result = RootstockLockedBTC.get_locked_value() |
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assert result == Wei.from(Decimal.new(21_000_000), :ether) |> Wei.sub(Wei.from(Decimal.new(42), :ether)) |
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end |
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end |
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