53 lines
1.4 KiB
Nim
53 lines
1.4 KiB
Nim
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import std/json
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import std/strutils
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import pkg/ethers
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proc revertReason*(e: ref EthersError): string =
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try:
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let json = parseJson(e.msg)
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var msg = json{"message"}.getStr
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const revertPrefixes = @[
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# hardhat
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"Error: VM Exception while processing transaction: reverted with " &
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"reason string ",
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# ganache
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"VM Exception while processing transaction: revert "
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]
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for prefix in revertPrefixes.items:
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msg = msg.replace(prefix)
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msg = msg.replace("\'")
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return msg
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except JsonParsingError:
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return ""
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template reverts*(body: untyped): untyped =
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let asyncproc = proc(): Future[bool] {.async.} =
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try:
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body
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return false
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except EthersError:
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return true
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except CatchableError:
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return false
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waitFor asyncproc()
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template revertsWith*(reason: string, body: untyped): untyped =
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let asyncproc = proc(): Future[bool] {.async.} =
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try:
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body
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return false
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except EthersError as e:
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return reason == revertReason(e)
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except CatchableError as e:
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return false
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waitFor asyncproc()
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template doesNotRevert*(body: untyped): untyped =
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let asyncproc = proc(): Future[bool] {.async.} =
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return not reverts(body)
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waitFor asyncproc()
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template doesNotRevertWith*(reason: string, body: untyped): untyped =
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let asyncproc = proc(): Future[bool] {.async.} =
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return not revertsWith(reason, body)
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waitFor asyncproc()
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