nim-codex/tests/ethertest.nim
markspanbroek d1658d7b77
Fix on-chain clock (#732)
* market: use `pending` blocktag when querying onchain state

* clock: use wall clock in integration tests

reason: we'll need to wait for the next period in
integration tests, and we can't do that if the
time doesn't advance

* clock: remove unused field

* integration: use pending block time to get current time

* clock: fix on-chain clock for hardhat

Only use 'latest' block for updates
Only update the first time you see a block

* integration: do not start tests with a very outdated block

* integration: allow for longer expiry period
2024-03-11 16:57:20 +00:00

32 lines
941 B
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("ws://localhost:8545")
snapshot = await send(ethProvider, "evm_snapshot")
# ensure that we have a recent block with a fresh timestamp
discard await send(ethProvider, "evm_mine")
accounts = await ethProvider.listAccounts()
teardown:
discard await send(ethProvider, "evm_revert", @[snapshot])
body
export unittest
export ethers except `%`