115 lines
4.6 KiB
Nim
115 lines
4.6 KiB
Nim
# Nimbus
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# Copyright (c) 2018 Status Research & Development GmbH
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# Licensed under either of
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# * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or http://www.apache.org/licenses/LICENSE-2.0)
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# * MIT license ([LICENSE-MIT](LICENSE-MIT) or http://opensource.org/licenses/MIT)
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# at your option. This file may not be copied, modified, or distributed except according to those terms.
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import
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unittest, strformat, strutils, sequtils, tables, stint, json, ospaths, times,
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./test_helpers,
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../src/[constants, errors, logging],
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../src/[chain, vm_state, computation, opcode, types, opcode_table],
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../src/utils/[header, padding],
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../src/vm/[gas_meter, message, code_stream, stack],
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../src/vm/forks/frontier/vm, ../src/db/[db_chain, state_db, backends/memory_backend]
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proc testFixture(fixtures: JsonNode, testStatusIMPL: var TestStatus)
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suite "vm json tests":
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jsonTest("VMTests", testFixture)
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proc testFixture(fixtures: JsonNode, testStatusIMPL: var TestStatus) =
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var fixture: JsonNode
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for label, child in fixtures:
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fixture = child
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break
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var vm = newFrontierVM(BlockHeader(), newBaseChainDB(newMemoryDB()))
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let header = BlockHeader(
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coinbase: fixture{"env"}{"currentCoinbase"}.getStr,
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difficulty: fixture{"env"}{"currentDifficulty"}.getHexadecimalInt.u256,
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blockNumber: fixture{"env"}{"currentNumber"}.getHexadecimalInt.u256,
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# gasLimit: fixture{"env"}{"currentGasLimit"}.getHexadecimalInt.u256,
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timestamp: fixture{"env"}{"currentTimestamp"}.getHexadecimalInt.int64.fromUnix)
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var code = ""
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vm.state.db(readOnly=false):
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setupStateDB(fixture{"pre"}, db)
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code = db.getCode(fixture{"exec"}{"address"}.getStr)
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code = fixture{"exec"}{"code"}.getStr
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let message = newMessage(
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to=fixture{"exec"}{"address"}.getStr,
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sender=fixture{"exec"}{"caller"}.getStr,
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value=fixture{"exec"}{"value"}.getHexadecimalInt.u256,
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data=fixture{"exec"}{"data"}.getStr.mapIt(it.byte),
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code=code,
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gas=fixture{"exec"}{"gas"}.getHexadecimalInt.u256,
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gasPrice=fixture{"exec"}{"gasPrice"}.getHexadecimalInt.u256,
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options=newMessageOptions(origin=fixture{"exec"}{"origin"}.getStr))
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#echo fixture{"exec"}
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var c = newCodeStreamFromUnescaped(code)
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if DEBUG:
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c.displayDecompiled()
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var computation = newBaseComputation(vm.state, message)
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computation.accountsToDelete = initTable[string, string]()
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computation.opcodes = OPCODE_TABLE
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computation.precompiles = initTable[string, Opcode]()
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computation = computation.applyComputation(vm.state, message)
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if not fixture{"post"}.isNil:
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# Success checks
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check(not computation.isError)
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let logEntries = computation.getLogEntries()
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if not fixture{"logs"}.isNil:
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discard
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# TODO hashLogEntries let actualLogsHash = hashLogEntries(logEntries)
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# let expectedLogsHash = fixture{"logs"}.getStr
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# check(expectedLogsHash == actualLogsHash)
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elif logEntries.len > 0:
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checkpoint(&"Got log entries: {logEntries}")
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fail()
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let expectedOutput = fixture{"out"}.getStr
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check(computation.output == expectedOutput)
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let gasMeter = computation.gasMeter
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let expectedGasRemaining = fixture{"gas"}.getHexadecimalInt.u256
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let actualGasRemaining = gasMeter.gasRemaining
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checkpoint(&"{actualGasRemaining} {expectedGasRemaining}")
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check(actualGasRemaining == expectedGasRemaining or
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computation.code.hasSStore() and
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(actualGasRemaining > expectedGasRemaining and (actualGasRemaining - expectedGasRemaining) mod 15_000 == 0 or
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expectedGasRemaining > actualGasRemaining and (expectedGasRemaining - actualGasRemaining) mod 15_000 == 0))
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let callCreatesJson = fixture{"callcreates"}
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var callCreates: seq[JsonNode] = @[]
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if not callCreatesJson.isNil:
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for next in callCreatesJson:
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callCreates.add(next)
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check(computation.children.len == callCreates.len)
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for child in zip(computation.children, callCreates):
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var (childComputation, createdCall) = child
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let toAddress = createdCall{"destination"}.getStr
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let data = createdCall{"data"}.getStr.mapIt(it.byte)
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let gasLimit = createdCall{"gasLimit"}.getHexadecimalInt.u256
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let value = createdCall{"value"}.getHexadecimalInt.u256
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check(childComputation.msg.to == toAddress)
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check(data == childComputation.msg.data or childComputation.msg.code.len > 0)
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check(gasLimit == childComputation.msg.gas)
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check(value == childComputation.msg.value)
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# TODO postState = fixture{"post"}
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else:
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# Error checks
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check(computation.isError)
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# TODO postState = fixture{"pre"}
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# TODO with vm.state.stateDb(readOnly=True) as stateDb:
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# verifyStateDb(postState, stateDb)
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