diff options
Diffstat (limited to 'tests/hazmat/backends/test_multibackend.py')
| -rw-r--r-- | tests/hazmat/backends/test_multibackend.py | 42 |
1 files changed, 26 insertions, 16 deletions
diff --git a/tests/hazmat/backends/test_multibackend.py b/tests/hazmat/backends/test_multibackend.py index 63168180..f0be72b2 100644 --- a/tests/hazmat/backends/test_multibackend.py +++ b/tests/hazmat/backends/test_multibackend.py @@ -11,18 +11,22 @@ # See the License for the specific language governing permissions and # limitations under the License. -import pytest +from __future__ import absolute_import, division, print_function from cryptography import utils -from cryptography.exceptions import UnsupportedAlgorithm +from cryptography.exceptions import ( + UnsupportedAlgorithm, _Reasons +) from cryptography.hazmat.backends.interfaces import ( - CipherBackend, HashBackend, HMACBackend, PBKDF2HMACBackend, RSABackend + CipherBackend, HMACBackend, HashBackend, PBKDF2HMACBackend, RSABackend ) from cryptography.hazmat.backends.multibackend import MultiBackend from cryptography.hazmat.primitives import hashes, hmac from cryptography.hazmat.primitives.asymmetric import padding from cryptography.hazmat.primitives.ciphers import Cipher, algorithms, modes +from ...utils import raises_unsupported_algorithm + @utils.register_interface(CipherBackend) class DummyCipherBackend(object): @@ -34,11 +38,11 @@ class DummyCipherBackend(object): def create_symmetric_encryption_ctx(self, algorithm, mode): if not self.cipher_supported(algorithm, mode): - raise UnsupportedAlgorithm + raise UnsupportedAlgorithm("", _Reasons.UNSUPPORTED_CIPHER) def create_symmetric_decryption_ctx(self, algorithm, mode): if not self.cipher_supported(algorithm, mode): - raise UnsupportedAlgorithm + raise UnsupportedAlgorithm("", _Reasons.UNSUPPORTED_CIPHER) @utils.register_interface(HashBackend) @@ -51,7 +55,7 @@ class DummyHashBackend(object): def create_hash_ctx(self, algorithm): if not self.hash_supported(algorithm): - raise UnsupportedAlgorithm + raise UnsupportedAlgorithm("", _Reasons.UNSUPPORTED_HASH) @utils.register_interface(HMACBackend) @@ -64,7 +68,7 @@ class DummyHMACBackend(object): def create_hmac_ctx(self, key, algorithm): if not self.hmac_supported(algorithm): - raise UnsupportedAlgorithm + raise UnsupportedAlgorithm("", _Reasons.UNSUPPORTED_HASH) @utils.register_interface(PBKDF2HMACBackend) @@ -78,7 +82,7 @@ class DummyPBKDF2HMACBackend(object): def derive_pbkdf2_hmac(self, algorithm, length, salt, iterations, key_material): if not self.pbkdf2_hmac_supported(algorithm): - raise UnsupportedAlgorithm + raise UnsupportedAlgorithm("", _Reasons.UNSUPPORTED_HASH) @utils.register_interface(RSABackend) @@ -119,9 +123,9 @@ class TestMultiBackend(object): modes.CBC(b"\x00" * 16), backend=backend ) - with pytest.raises(UnsupportedAlgorithm): + with raises_unsupported_algorithm(_Reasons.UNSUPPORTED_CIPHER): cipher.encryptor() - with pytest.raises(UnsupportedAlgorithm): + with raises_unsupported_algorithm(_Reasons.UNSUPPORTED_CIPHER): cipher.decryptor() def test_hashes(self): @@ -132,7 +136,7 @@ class TestMultiBackend(object): hashes.Hash(hashes.MD5(), backend=backend) - with pytest.raises(UnsupportedAlgorithm): + with raises_unsupported_algorithm(_Reasons.UNSUPPORTED_HASH): hashes.Hash(hashes.SHA1(), backend=backend) def test_hmac(self): @@ -143,7 +147,7 @@ class TestMultiBackend(object): hmac.HMAC(b"", hashes.MD5(), backend=backend) - with pytest.raises(UnsupportedAlgorithm): + with raises_unsupported_algorithm(_Reasons.UNSUPPORTED_HASH): hmac.HMAC(b"", hashes.SHA1(), backend=backend) def test_pbkdf2(self): @@ -154,7 +158,7 @@ class TestMultiBackend(object): backend.derive_pbkdf2_hmac(hashes.MD5(), 10, b"", 10, b"") - with pytest.raises(UnsupportedAlgorithm): + with raises_unsupported_algorithm(_Reasons.UNSUPPORTED_HASH): backend.derive_pbkdf2_hmac(hashes.SHA1(), 10, b"", 10, b"") def test_rsa(self): @@ -173,13 +177,19 @@ class TestMultiBackend(object): padding.PKCS1v15(), hashes.MD5()) backend = MultiBackend([]) - with pytest.raises(UnsupportedAlgorithm): + with raises_unsupported_algorithm( + _Reasons.UNSUPPORTED_PUBLIC_KEY_ALGORITHM + ): backend.generate_rsa_private_key(key_size=1024, public_exponent=3) - with pytest.raises(UnsupportedAlgorithm): + with raises_unsupported_algorithm( + _Reasons.UNSUPPORTED_PUBLIC_KEY_ALGORITHM + ): backend.create_rsa_signature_ctx("private_key", padding.PKCS1v15(), hashes.MD5()) - with pytest.raises(UnsupportedAlgorithm): + with raises_unsupported_algorithm( + _Reasons.UNSUPPORTED_PUBLIC_KEY_ALGORITHM + ): backend.create_rsa_verification_ctx( "public_key", "sig", padding.PKCS1v15(), hashes.MD5()) |