More precise name for test data generation

We have Python code both for test code generation
(tests/scripts/generate_test_code.py) and now for test data generation.
Avoid the ambiguous expression "test generation".

This commit renames the Python module and adjusts all references to it. A
subsequent commit will adjust the documentation.

Signed-off-by: Gilles Peskine <[email protected]>

tests/scripts/generate_bignum_tests.py

@@ -6,7 +6,7 @@
 
 Class structure:
 
-Child classes of test_generation.BaseTarget (file targets) represent an output
+Child classes of test_data_generation.BaseTarget (file targets) represent an output
 file. These indicate where test cases will be written to, for all subclasses of
 this target. Multiple file targets should not reuse a `target_basename`.
 
@@ -36,7 +36,7 @@
         call `.create_test_case()` to yield the TestCase.
 
 Additional details and other attributes/methods are given in the documentation
-of BaseTarget in test_generation.py.
+of BaseTarget in test_data_generation.py.
 """
 
 # Copyright The Mbed TLS Contributors
@@ -63,7 +63,7 @@
 
 import scripts_path # pylint: disable=unused-import
 from mbedtls_dev import test_case
-from mbedtls_dev import test_generation
+from mbedtls_dev import test_data_generation
 
 T = TypeVar('T') #pylint: disable=invalid-name
 
@@ -85,7 +85,7 @@ def combination_pairs(values: List[T]) -> List[Tuple[T, T]]:
     )
 
 
-class BignumTarget(test_generation.BaseTarget, metaclass=ABCMeta):
+class BignumTarget(test_data_generation.BaseTarget, metaclass=ABCMeta):
     #pylint: disable=abstract-method
     """Target for bignum (mpi) test case generation."""
     target_basename = 'test_suite_mpi.generated'
@@ -235,4 +235,4 @@ def result(self) -> str:
 
 if __name__ == '__main__':
     # Use the section of the docstring relevant to the CLI as description
-    test_generation.main(sys.argv[1:], "\n".join(__doc__.splitlines()[:4]))
+    test_data_generation.main(sys.argv[1:], "\n".join(__doc__.splitlines()[:4]))

tests/scripts/generate_psa_tests.py

@@ -30,7 +30,7 @@
 from mbedtls_dev import macro_collector
 from mbedtls_dev import psa_storage
 from mbedtls_dev import test_case
-from mbedtls_dev import test_generation
+from mbedtls_dev import test_data_generation
 
 
 def psa_want_symbol(name: str) -> str:
@@ -894,7 +894,7 @@ def generate_all_keys(self) -> Iterator[StorageTestData]:
         yield from super().generate_all_keys()
         yield from self.all_keys_for_implicit_usage()
 
-class PSATestGenerator(test_generation.TestGenerator):
+class PSATestGenerator(test_data_generation.TestGenerator):
     """Test generator subclass including PSA targets and info."""
     # Note that targets whose names contain 'test_format' have their content
     # validated by `abi_check.py`.
@@ -919,4 +919,4 @@ def generate_target(self, name: str, *target_args) -> None:
         super().generate_target(name, self.info)
 
 if __name__ == '__main__':
-    test_generation.main(sys.argv[1:], __doc__, PSATestGenerator)
+    test_data_generation.main(sys.argv[1:], __doc__, PSATestGenerator)