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https://github.com/status-im/nim-ethers.git
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765379a662
* fix nonce issues by locking populate and send transaction Concurrent asynchronous population of transactions cause issues with nonces not being in sync with the transaction count for an account on chain. This was being mitigated by tracking a "last seen" nonce and locking inside of `populateTransaction` so that the nonce could be populated in a concurrent fashion. However, if there was an async cancellation before the transaction was sent, then the nonce would become out of sync. One solution was to decrease the nonce if a cancellation occurred. The other solution, in this commit, is simply to lock the populate and sendTransaction calls together, so that there will not be concurrent nonce discrepancies. This removes the need for "lastSeenNonce" and is overall more simple. * remove lastSeenNonce Internal nonce tracking is no longer needed since populate/sendTransaction is now locked. Even if cancelled midway, the nonce will get a refreshed value from the number of transactions from chain. * chronos v4 exception tracking * Add tests
87 lines
3.0 KiB
Nim
87 lines
3.0 KiB
Nim
import std/os
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import pkg/asynctest
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import pkg/ethers
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import pkg/stew/byteutils
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import ../../examples
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suite "JsonRpcSigner":
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var provider: JsonRpcProvider
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var accounts: seq[Address]
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let providerUrl = getEnv("ETHERS_TEST_PROVIDER", "localhost:8545")
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setup:
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provider = JsonRpcProvider.new("http://" & providerUrl)
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accounts = await provider.listAccounts()
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teardown:
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await provider.close()
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test "is connected to the first account of the provider by default":
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let signer = provider.getSigner()
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check (await signer.getAddress()) == accounts[0]
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test "can connect to a different account":
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let signer = provider.getSigner(accounts[1])
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check (await signer.getAddress()) == accounts[1]
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test "can retrieve gas price":
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let signer = provider.getSigner()
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let gasprice = await signer.getGasPrice()
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check gasprice > 0.u256
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test "can retrieve transaction count":
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let signer = provider.getSigner(accounts[9])
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let count = await signer.getTransactionCount(BlockTag.pending)
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check count == 0.u256
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test "can estimate gas cost of a transaction":
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let signer = provider.getSigner()
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let estimate = await signer.estimateGas(Transaction.example)
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check estimate > 0.u256
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test "can retrieve chain id":
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let signer = provider.getSigner()
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let chainId = await signer.getChainId()
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check chainId == 31337.u256 # hardhat chain id
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test "can sign messages":
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let signer = provider.getSigner()
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let message = "hello".toBytes
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check (await signer.signMessage(message)).len == 65
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test "can populate missing fields in a transaction":
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let signer = provider.getSigner()
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let transaction = Transaction.example
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let populated = await signer.populateTransaction(transaction)
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check !populated.sender == await signer.getAddress()
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check !populated.gasPrice == await signer.getGasPrice()
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check !populated.nonce == await signer.getTransactionCount(BlockTag.pending)
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check !populated.gasLimit == await signer.estimateGas(transaction)
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check !populated.chainId == await signer.getChainId()
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test "populate does not overwrite existing fields":
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let signer = provider.getSigner()
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var transaction = Transaction.example
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transaction.sender = some await signer.getAddress()
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transaction.nonce = some UInt256.example
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transaction.chainId = some await signer.getChainId()
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transaction.gasPrice = some UInt256.example
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transaction.gasLimit = some UInt256.example
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let populated = await signer.populateTransaction(transaction)
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check populated == transaction
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test "populate fails when sender does not match signer address":
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let signer = provider.getSigner()
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var transaction = Transaction.example
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transaction.sender = accounts[1].some
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expect SignerError:
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discard await signer.populateTransaction(transaction)
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test "populate fails when chain id does not match":
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let signer = provider.getSigner()
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var transaction = Transaction.example
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transaction.chainId = 0xdeadbeef.u256.some
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expect SignerError:
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discard await signer.populateTransaction(transaction)
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