60 lines
2.6 KiB
Nim
60 lines
2.6 KiB
Nim
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import
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unittest, test_helpers,
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constants, types, errors, logging, ttmath,
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tables, parseutils, chain, vm_state, computation, opcode, opcode_table, utils / [header, padding], vm / [gas_meter, message, code_stream, stack], vm / forks / frontier / vm, db / [db_chain, state_db], db / backends / memory_backend
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proc testCode(code: string, gas: UInt256): BaseComputation =
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var vm = newFrontierVM(Header(), newBaseChainDB(newMemoryDB()))
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let header = Header()
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# coinbase: "",
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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)
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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=0.u256,
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data = @[],
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code=code,
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gas=gas,
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gasPrice=1.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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result = computation
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suite "opcodes":
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test "add":
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var c = testCode("0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff01", 100_000.u256)
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check(c.gasMeter.gasRemaining == 99_991.u256)
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check(c.stack.peek == "115792089237316195423570985008687907853269984665640564039457584007913129639934".u256)
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# let address = Address::from_str("0f572e5295c57f15886f9b263e2f6d2d6c7b5ec6").unwrap();
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# let code = "7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff01600055".from_hex().unwrap();
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# let mut params = ActionParams::default();
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# params.address = address.clone();
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# params.gas = U256::from(100_000);
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# params.code = Some(Arc::new(code));
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# let mut ext = FakeExt::new();
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# let gas_left = {
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# let mut vm = factory.create(params.gas);
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# test_finalize(vm.exec(params, &mut ext)).unwrap()
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# };
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# assert_eq!(gas_left, U256::from(79_988));
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# assert_store(&ext, 0, "fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe");
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# }
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