Use an enum for determining BlockCipher operation
diff --git a/tests/primitives/test_block.py b/tests/primitives/test_block.py
index 799e5f0..9059a88 100644
--- a/tests/primitives/test_block.py
+++ b/tests/primitives/test_block.py
@@ -13,9 +13,11 @@
import binascii
+import pretend
import pytest
from cryptography.primitives.block import BlockCipher, ciphers, modes
+from cryptography.primitives.block.base import _Operation
class TestBlockCipher(object):
@@ -43,7 +45,7 @@
ciphers.AES(binascii.unhexlify(b"0" * 32)),
modes.CBC(binascii.unhexlify(b"0" * 32))
)
- cipher._operation = "decrypt"
+ cipher._operation = _Operation.decrypt
with pytest.raises(ValueError):
cipher.encrypt(b"b" * 16)
@@ -53,7 +55,7 @@
ciphers.AES(binascii.unhexlify(b"0" * 32)),
modes.CBC(binascii.unhexlify(b"0" * 32))
)
- cipher._operation = "wat"
+ cipher._operation = pretend.stub(name="wat")
with pytest.raises(ValueError):
cipher.encrypt(b"b" * 16)