mirror of https://github.com/ConsenSys/mythril
blockchainethereumsmart-contractssoliditysecurityprogram-analysissecurity-analysissymbolic-execution
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58 lines
1.4 KiB
58 lines
1.4 KiB
import pytest
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from mythril.laser.smt import symbol_factory
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from mythril.laser.ethereum.state.account import Storage
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from mythril.laser.smt import Expression
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BVV = symbol_factory.BitVecVal
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storage_uninitialized_test_data = [({}, 1), ({1: 5}, 2), ({1: 5, 3: 10}, 2)]
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@pytest.mark.parametrize("initial_storage,key", storage_uninitialized_test_data)
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def test_concrete_storage_uninitialized_index(initial_storage, key):
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# Arrange
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storage = Storage(concrete=True)
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for k, val in initial_storage.items():
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storage[BVV(k, 256)] = BVV(val, 256)
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# Act
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value = storage[BVV(key, 256)]
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# Assert
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assert value == 0
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@pytest.mark.parametrize("initial_storage,key", storage_uninitialized_test_data)
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def test_symbolic_storage_uninitialized_index(initial_storage, key):
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# Arrange
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storage = Storage(concrete=False)
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for k, val in initial_storage.items():
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storage[BVV(k, 256)] = BVV(val, 256)
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# Act
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value = storage[BVV(key, 256)]
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# Assert
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assert isinstance(value, Expression)
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def test_storage_set_item():
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# Arrange
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storage = Storage()
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# Act
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storage[BVV(1, 256)] = BVV(13, 256)
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# Assert
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assert storage[BVV(1, 256)] == BVV(13, 256)
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def test_storage_change_item():
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# Arrange
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storage = Storage()
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storage[BVV(1, 256)] = BVV(12, 256)
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# Act
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storage[BVV(1, 256)] = BVV(14, 256)
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# Assert
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assert storage[BVV(1, 256)] == BVV(14, 256)
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