99 lines
3.2 KiB
Nim
99 lines
3.2 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 unittest, macros, strformat, strutils, sequtils,
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ttmath,
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../src/[constants, opcode_values, errors, logging, vm/gas_meter]
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# TODO: quicktest
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# PS: parametrize can be easily immitated, but still quicktests would be even more useful
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disableLogging()
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proc gasMeters: seq[GasMeter] =
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@[newGasMeter(10.u256), newGasMeter(100.u256), newGasMeter(999.u256)]
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macro all(element: untyped, handler: untyped): untyped =
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let name = ident(&"{element.repr}s")
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result = quote:
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var res = `name`()
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for `element` in res.mitems:
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`handler`
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# @pytest.mark.parametrize("value", (0, 10))
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# def test_start_gas_on_instantiation(value):
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# meter = GasMeter(value)
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# assert meter.start_gas == value
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# assert meter.gas_remaining == value
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# assert meter.gas_refunded == 0
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# @pytest.mark.parametrize("value", (-1, 2**256, 'a'))
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# def test_instantiation_invalid_value(value):
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# with pytest.raises(ValidationError):
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# GasMeter(value)
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# @pytest.mark.parametrize("amount", (0, 1, 10))
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# def test_consume_gas(gas_meter, amount):
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# gas_meter.consume_gas(amount, "reason")
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# assert gas_meter.gas_remaining == gas_meter.start_gas - amount
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# @pytest.mark.parametrize("amount", (0, 1, 99))
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# def test_return_gas(gas_meter, amount):
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# gas_meter.return_gas(amount)
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# assert gas_meter.gas_remaining == (gas_meter.start_gas + amount)
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# @pytest.mark.parametrize("amount", (0, 1, 99))
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# def test_refund_gas(gas_meter, amount):
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# gas_meter.refund_gas(amount)
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# assert gas_meter.gas_refunded == amount
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suite "gasMeter":
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# types
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# test "consume rejects negative":
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# all(gasMeter):
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# expect(ValidationError):
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# gasMeter.consumeGas(-1.i256, "independent")
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# test "return rejects negative":
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# all(gasMeter):
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# expect(ValidationError):
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# gasMeter.returnGas(-1.i256)
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# test "refund rejects negative":
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# all(gasMeter):
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# expect(ValidationError):
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# gasMeter.returnGas(-1.i256)
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# TODO: -0/+0
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test "consume spends":
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all(gasMeter):
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check(gasMeter.gasRemaining == gasMeter.startGas)
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let consume = gasMeter.startGas
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gasMeter.consumeGas(consume, "0")
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check(gasMeter.gasRemaining - (gasMeter.startGas - consume) == 0)
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test "consume errors":
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all(gasMeter):
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check(gasMeter.gasRemaining == gasMeter.startGas)
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expect(OutOfGas):
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gasMeter.consumeGas(gasMeter.startGas + 1.u256, "")
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test "return refund works correctly":
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all(gasMeter):
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check(gasMeter.gasRemaining == gasMeter.startGas)
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check(gasMeter.gasRefunded == 0)
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gasMeter.consumeGas(5.u256, "")
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check(gasMeter.gasRemaining == gasMeter.startGas - 5.u256)
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gasMeter.returnGas(5.u256)
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check(gasMeter.gasRemaining == gasMeter.startGas)
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gasMeter.refundGas(5.u256)
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check(gasMeter.gasRefunded == 5.u256)
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