nim-dagger/tests/ethertest.nim
Mark Spanbroek 5e02b0c1b8
Do not use websocket connections to hardhat
To work around this issue when subscriptions are
inactive for more than 5 minutes:
https://github.com/NomicFoundation/hardhat/issues/2053
2024-11-08 10:28:57 +01:00

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Nim

import std/json
import pkg/ethers
import ./asynctest
import ./checktest
## Unit testing suite that sets up an Ethereum testing environment.
## Injects a `ethProvider` instance, and a list of `accounts`.
## Calls the `evm_snapshot` and `evm_revert` methods to ensure that any
## changes to the blockchain do not persist.
template ethersuite*(name, body) =
asyncchecksuite name:
var ethProvider {.inject, used.}: JsonRpcProvider
var accounts {.inject, used.}: seq[Address]
var snapshot: JsonNode
setup:
ethProvider = JsonRpcProvider.new("http://localhost:8545")
snapshot = await send(ethProvider, "evm_snapshot")
accounts = await ethProvider.listAccounts()
teardown:
discard await send(ethProvider, "evm_revert", @[snapshot])
body
export asynctest
export ethers except `%`