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https://github.com/logos-storage/nim-ethers.git
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fc2ffff279
- add comments to hashes shim - remove .catch from callback condition - derive SignerError from EthersError instead of ProviderError. This allows Providers and Signers to be separate, as Ledger does it, to isolate functionality. Some signer functions now raise both ProviderError and SignerError - Update reverts to check for SignerError - Update ERC-20 method comment
117 lines
3.9 KiB
Nim
117 lines
3.9 KiB
Nim
import std/strformat
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import pkg/asynctest
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import pkg/chronos
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import pkg/ethers
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import pkg/ethers/testing
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import pkg/serde
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import ./helpers
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suite "Testing helpers":
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let revertReason = "revert reason"
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let rpcResponse = "Error: VM Exception while processing transaction: " &
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fmt"reverted with reason string '{revertReason}'"
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test "checks that call reverts":
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proc call() {.async.} =
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raise newException(EstimateGasError, $rpcResponse)
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check await call().reverts()
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test "checks reason for revert":
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proc call() {.async.} =
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raise newException(EstimateGasError, $rpcResponse)
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check await call().reverts(revertReason)
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test "correctly indicates there was no revert":
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proc call() {.async.} = discard
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check not await call().reverts()
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test "reverts only checks ProviderErrors, EstimateGasErrors":
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proc callProviderError() {.async.} =
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raise newException(ProviderError, "test")
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proc callSignerError() {.async.} =
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raise newException(SignerError, "test")
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proc callEstimateGasError() {.async.} =
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raise newException(EstimateGasError, "test")
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proc callEthersError() {.async.} =
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raise newException(EthersError, "test")
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check await callProviderError().reverts()
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check await callSignerError().reverts()
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check await callEstimateGasError().reverts()
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expect EthersError:
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check await callEthersError().reverts()
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test "reverts with reason only checks ProviderErrors, EstimateGasErrors":
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proc callProviderError() {.async.} =
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raise newException(ProviderError, revertReason)
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proc callSignerError() {.async.} =
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raise newException(SignerError, revertReason)
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proc callEstimateGasError() {.async.} =
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raise newException(EstimateGasError, revertReason)
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proc callEthersError() {.async.} =
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raise newException(EthersError, revertReason)
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check await callProviderError().reverts(revertReason)
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check await callSignerError().reverts(revertReason)
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check await callEstimateGasError().reverts(revertReason)
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expect EthersError:
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check await callEthersError().reverts(revertReason)
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test "reverts with reason is false when there is no revert":
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proc call() {.async.} = discard
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check not await call().reverts(revertReason)
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test "reverts is false when the revert reason doesn't match":
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proc call() {.async.} =
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raise newException(EstimateGasError, "other reason")
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check not await call().reverts(revertReason)
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test "revert handles non-standard revert prefix":
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let nonStdMsg = fmt"Provider VM Exception: reverted with {revertReason}"
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proc call() {.async.} =
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raise newException(EstimateGasError, nonStdMsg)
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check await call().reverts(nonStdMsg)
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test "works with functions that return a value":
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proc call(): Future[int] {.async.} = return 42
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check not await call().reverts()
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check not await call().reverts(revertReason)
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suite "Testing helpers - contracts":
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var helpersContract: TestHelpers
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var provider: JsonRpcProvider
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var snapshot: JsonNode
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var accounts: seq[Address]
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let revertReason = "revert reason"
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setup:
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provider = JsonRpcProvider.new("ws://127.0.0.1:8545")
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snapshot = await provider.send("evm_snapshot")
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accounts = await provider.listAccounts()
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helpersContract = TestHelpers.new(provider.getSigner())
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teardown:
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discard await provider.send("evm_revert", @[snapshot])
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await provider.close()
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test "revert reason can be retrieved when transaction fails":
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let txResp = helpersContract.doRevert(
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revertReason,
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# override gasLimit to skip estimating gas
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TransactionOverrides(gasLimit: some 10000000.u256)
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)
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check await txResp.confirm(1).reverts(revertReason)
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test "revert reason can be retrieved when estimate gas fails":
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let txResp = helpersContract.doRevert(revertReason)
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check await txResp.reverts(revertReason)
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