PSA test case generation: dependency inference class: key not supported
Use psa_information.TestCase for not-supported test cases for key import and
generation.
No change to the generated output.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
diff --git a/scripts/mbedtls_dev/psa_information.py b/scripts/mbedtls_dev/psa_information.py
index 2c24a3a..1474657 100644
--- a/scripts/mbedtls_dev/psa_information.py
+++ b/scripts/mbedtls_dev/psa_information.py
@@ -6,7 +6,7 @@
import re
-from typing import Dict, FrozenSet, List, Optional
+from typing import Dict, FrozenSet, List, Optional, Set
from . import macro_collector
from . import test_case
@@ -116,6 +116,20 @@
def __init__(self) -> None:
super().__init__()
self.key_bits = None #type: Optional[int]
+ self.negated_dependencies = set() #type: Set[str]
+
+ def assumes_not_supported(self, name: str) -> None:
+ """Negate the given mechanism for automatic dependency generation.
+
+ Call this function before set_arguments() for a test case that should
+ run if the given mechanism is not supported.
+
+ A mechanism is a PSA_XXX symbol, e.g. PSA_KEY_TYPE_AES, PSA_ALG_HMAC,
+ etc. For mechanisms like ECC curves where the support status includes
+ the key bit-size, this class assumes that only one bit-size is
+ involved in a given test case.
+ """
+ self.negated_dependencies.add(psa_want_symbol(name))
def set_key_bits(self, key_bits: Optional[int]) -> None:
"""Use the given key size for automatic dependency generation.
@@ -131,6 +145,9 @@
"""Set test case arguments and automatically infer dependencies."""
super().set_arguments(arguments)
dependencies = automatic_dependencies(*arguments)
+ for i in range(len(dependencies)): #pylint: disable=consider-using-enumerate
+ if dependencies[i] in self.negated_dependencies:
+ dependencies[i] = '!' + dependencies[i]
if self.key_bits is not None:
dependencies = finish_family_dependencies(dependencies, self.key_bits)
hack_dependencies_not_implemented(dependencies)