nim-ethers/ethers/testing.nim

49 lines
1.2 KiB
Nim

import std/strutils
import ./provider
import ./signer
proc revertReason*(emsg: string): string =
var msg = emsg
const revertPrefixes = @[
# hardhat
"Error: VM Exception while processing transaction: reverted with " &
"reason string ",
# ganache
"VM Exception while processing transaction: revert "
]
for prefix in revertPrefixes.items:
msg = msg.replace(prefix)
msg = msg.replace("\'")
return msg
proc revertReason*(e: ref EthersError): string =
var msg = e.msg
msg.revertReason
proc reverts*[T](call: Future[T]): Future[bool] {.async.} =
try:
when T is void:
await call
else:
discard await call
return false
except ProviderError, EstimateGasError:
return true
proc reverts*[T](call: Future[T], reason: string): Future[bool] {.async.} =
try:
when T is void:
await call
else:
discard await call
return false
except ProviderError, EstimateGasError:
let e = getCurrentException()
var passed = reason == (ref EthersError)(e).revertReason
if not passed and
not e.parent.isNil and
e.parent of (ref EthersError):
let revertReason = (ref EthersError)(e.parent).revertReason
passed = reason == revertReason
return passed