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Bignum tests: add support for filtering

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Sometimes we don't want all possible combinations of the input data and
sometimes not all combinations make sense. We are adding a convenient
way to decide on a case by case basis. Now child classes only need to
implement the is_valid method and the invalid cases will be filtered out
automatically.

Signed-off-by: Janos Follath <janos.follath@arm.com>
This commit is contained in:
Janos Follath 2022-11-18 18:15:24 +00:00
parent 1921fd585c
commit 939621f8ed
1 changed files with 16 additions and 7 deletions
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23
scripts/mbedtls_dev/bignum_common.py
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@ -172,6 +172,10 @@ class OperationCommon(test_data_generation.BaseTest):
)
return super().description()
@property
def is_valid(self) -> bool:
return True
@abstractmethod
def result(self) -> List[str]:
"""Get the result of the operation.
@ -204,13 +208,18 @@ class OperationCommon(test_data_generation.BaseTest):
raise ValueError("Unknown input style!")
if cls.arity not in cls.arities:
raise ValueError("Unsupported number of operands!")
for a_value, b_value in cls.get_value_pairs():
if cls.input_style == "arch_split":
for bil in cls.limb_sizes:
yield cls(a_value, b_value,
bits_in_limb=bil).create_test_case()
else:
yield cls(a_value, b_value).create_test_case()
if cls.input_style == "arch_split":
test_objects = (cls(a_value, b_value, bits_in_limb=bil)
for a_value, b_value in cls.get_value_pairs()
for bil in cls.limb_sizes)
else:
test_objects = (cls(a_value, b_value) for
a_value, b_value in cls.get_value_pairs())
yield from (valid_test_object.create_test_case()
for valid_test_object in filter(
lambda test_object: test_object.is_valid,
test_objects
))
class ModOperationCommon(OperationCommon):