66 lines
3.1 KiB
Python
66 lines
3.1 KiB
Python
from ssz_test_case import invalid_test_case, valid_test_case
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from eth2spec.utils.ssz.ssz_typing import boolean, uint8, uint16, uint32, uint64, uint128, uint256, Vector, BasicView
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from eth2spec.utils.ssz.ssz_impl import serialize
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from random import Random
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from typing import Dict, Type
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from eth2spec.debug.random_value import RandomizationMode, get_random_ssz_object
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def basic_vector_case_fn(rng: Random, mode: RandomizationMode, elem_type: Type[BasicView], length: int):
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return get_random_ssz_object(rng, Vector[elem_type, length],
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max_bytes_length=length * 8,
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max_list_length=length,
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mode=mode, chaos=False)
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BASIC_TYPES: Dict[str, Type[BasicView]] = {
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'bool': boolean,
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'uint8': uint8,
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'uint16': uint16,
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'uint32': uint32,
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'uint64': uint64,
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'uint128': uint128,
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'uint256': uint256
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}
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def valid_cases():
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rng = Random(1234)
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for (name, typ) in BASIC_TYPES.items():
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random_modes = [RandomizationMode.mode_zero, RandomizationMode.mode_max]
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if name != 'bool':
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random_modes.append(RandomizationMode.mode_random)
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for length in [1, 2, 3, 4, 5, 8, 16, 31, 512, 513]:
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for mode in random_modes:
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yield f'vec_{name}_{length}_{mode.to_name()}', \
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valid_test_case(lambda: basic_vector_case_fn(rng, mode, typ, length))
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def invalid_cases():
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# zero length vectors are illegal
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for (name, typ) in BASIC_TYPES.items():
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yield f'vec_{name}_0', invalid_test_case(lambda: b'')
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rng = Random(1234)
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for (name, typ) in BASIC_TYPES.items():
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random_modes = [RandomizationMode.mode_zero, RandomizationMode.mode_max]
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if name != 'bool':
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random_modes.append(RandomizationMode.mode_random)
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for length in [1, 2, 3, 4, 5, 8, 16, 31, 512, 513]:
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yield f'vec_{name}_{length}_nil', invalid_test_case(lambda: b'')
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for mode in random_modes:
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if length == 1:
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# empty bytes, no elements. It may seem valid, but empty fixed-size elements are not valid SSZ.
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yield f'vec_{name}_{length}_{mode.to_name()}_one_less', \
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invalid_test_case(lambda: b"")
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else:
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yield f'vec_{name}_{length}_{mode.to_name()}_one_less', \
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invalid_test_case(lambda: serialize(basic_vector_case_fn(rng, mode, typ, length - 1)))
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yield f'vec_{name}_{length}_{mode.to_name()}_one_more', \
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invalid_test_case(lambda: serialize(basic_vector_case_fn(rng, mode, typ, length + 1)))
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yield f'vec_{name}_{length}_{mode.to_name()}_one_byte_less', \
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invalid_test_case(lambda: serialize(basic_vector_case_fn(rng, mode, typ, length))[:-1])
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yield f'vec_{name}_{length}_{mode.to_name()}_one_byte_more', \
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invalid_test_case(lambda: serialize(basic_vector_case_fn(rng, mode, typ, length))
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+ serialize(basic_vector_case_fn(rng, mode, uint8, 1)))
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