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-rw-r--r--tests/hazmat/primitives/test_block.py12
1 files changed, 11 insertions, 1 deletions
diff --git a/tests/hazmat/primitives/test_block.py b/tests/hazmat/primitives/test_block.py
index 938cff36..963136b9 100644
--- a/tests/hazmat/primitives/test_block.py
+++ b/tests/hazmat/primitives/test_block.py
@@ -24,6 +24,11 @@ from cryptography.hazmat.primitives.ciphers import (
)
+@interfaces.register(interfaces.CipherAlgorithm)
+class DummyCipher(object):
+ pass
+
+
class TestCipher(object):
def test_instantiate_without_backend(self):
Cipher(
@@ -45,6 +50,11 @@ class TestCipher(object):
)
assert isinstance(cipher.decryptor(), interfaces.CipherContext)
+ def test_instantiate_with_non_algorithm(self):
+ algorithm = object()
+ with pytest.raises(TypeError):
+ Cipher(algorithm, mode=None)
+
class TestCipherContext(object):
def test_use_after_finalize(self, backend):
@@ -90,7 +100,7 @@ class TestCipherContext(object):
def test_nonexistent_cipher(self, backend):
cipher = Cipher(
- object(), object(), backend
+ DummyCipher(), object(), backend
)
with pytest.raises(UnsupportedAlgorithm):
cipher.encryptor()