102 lines
3.6 KiB
Nim
102 lines
3.6 KiB
Nim
import std/json
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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/providers/jsonrpc/conversions
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import pkg/stew/byteutils
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import ../../examples
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import ../../miner
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for url in ["ws://localhost:8545", "http://localhost:8545"]:
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suite "JsonRpcProvider (" & url & ")":
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var provider: JsonRpcProvider
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setup:
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provider = JsonRpcProvider.new(url, pollingInterval = 100.millis)
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teardown:
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await provider.close()
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test "can be instantiated with a default URL":
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discard JsonRpcProvider.new()
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test "lists all accounts":
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let accounts = await provider.listAccounts()
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check accounts.len > 0
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test "sends raw messages to the provider":
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let response = await provider.send("evm_mine")
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check response == %"0x0"
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test "returns block number":
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let blocknumber1 = await provider.getBlockNumber()
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discard await provider.send("evm_mine")
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let blocknumber2 = await provider.getBlockNumber()
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check blocknumber2 > blocknumber1
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test "returns block":
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let block1 = !await provider.getBlock(BlockTag.earliest)
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let block2 = !await provider.getBlock(BlockTag.latest)
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check block1.hash != block2.hash
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check !block1.number < !block2.number
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check block1.timestamp < block2.timestamp
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test "subscribes to new blocks":
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let oldBlock = !await provider.getBlock(BlockTag.latest)
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discard await provider.send("evm_mine")
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var newBlock: Block
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let blockHandler = proc(blck: Block) = newBlock = blck
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let subscription = await provider.subscribe(blockHandler)
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discard await provider.send("evm_mine")
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check eventually newBlock.number.isSome
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check !newBlock.number > !oldBlock.number
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check newBlock.timestamp > oldBlock.timestamp
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check newBlock.hash != oldBlock.hash
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await subscription.unsubscribe()
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test "can send 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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let txResp = await signer.sendTransaction(populated)
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check txResp.hash.len == 32
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check UInt256.fromHex("0x" & txResp.hash.toHex) > 0
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test "can wait for a transaction to be confirmed":
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for confirmations in 0..3:
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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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let confirming = signer.sendTransaction(populated).confirm(confirmations)
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await sleepAsync(100.millis) # wait for tx to be mined
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await provider.mineBlocks(confirmations - 1)
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let receipt = await confirming
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check receipt.blockNumber.isSome
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test "confirmation times out":
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let hash = TransactionHash.example
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let tx = TransactionResponse(provider: provider, hash: hash)
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let confirming = tx.confirm(confirmations = 2, timeout = 5)
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await provider.mineBlocks(5)
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expect EthersError:
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discard await confirming
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test "raises JsonRpcProviderError when something goes wrong":
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let provider = JsonRpcProvider.new("http://invalid.")
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expect JsonRpcProviderError:
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discard await provider.listAccounts()
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expect JsonRpcProviderError:
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discard await provider.send("evm_mine")
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expect JsonRpcProviderError:
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discard await provider.getBlockNumber()
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expect JsonRpcProviderError:
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discard await provider.getBlock(BlockTag.latest)
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expect JsonRpcProviderError:
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discard await provider.subscribe(proc(_: Block) = discard)
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expect JsonRpcProviderError:
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discard await provider.getSigner().sendTransaction(Transaction.example)
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