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-rw-r--r--tests/hazmat/primitives/test_cmac.py14
1 files changed, 5 insertions, 9 deletions
diff --git a/tests/hazmat/primitives/test_cmac.py b/tests/hazmat/primitives/test_cmac.py
index c007527f..c778ebee 100644
--- a/tests/hazmat/primitives/test_cmac.py
+++ b/tests/hazmat/primitives/test_cmac.py
@@ -21,7 +21,6 @@ import pytest
import six
-from cryptography import utils
from cryptography.exceptions import (
AlreadyFinalized, InvalidSignature, _Reasons
)
@@ -31,6 +30,7 @@ from cryptography.hazmat.primitives.ciphers.algorithms import (
)
from cryptography.hazmat.primitives.cmac import CMAC
+from ..backends.test_multibackend import DummyCMACBackend
from ...utils import (
load_nist_vectors, load_vectors_from_file, raises_unsupported_algorithm
)
@@ -195,18 +195,14 @@ class TestCMAC(object):
def test_copy():
- @utils.register_interface(CMACBackend)
- class PretendBackend(object):
- pass
-
- pretend_backend = PretendBackend()
+ backend = DummyCMACBackend([AES])
copied_ctx = pretend.stub()
pretend_ctx = pretend.stub(copy=lambda: copied_ctx)
key = b"2b7e151628aed2a6abf7158809cf4f3c"
- cmac = CMAC(AES(key), backend=pretend_backend, ctx=pretend_ctx)
+ cmac = CMAC(AES(key), backend=backend, ctx=pretend_ctx)
- assert cmac._backend is pretend_backend
- assert cmac.copy()._backend is pretend_backend
+ assert cmac._backend is backend
+ assert cmac.copy()._backend is backend
def test_invalid_backend():