From 18f2c8f5da97e430387a78d6e7fe20de1c1e6ada Mon Sep 17 00:00:00 2001
From: Alex Gaynor <alex.gaynor@gmail.com>
Date: Tue, 19 Nov 2013 16:57:08 -0800
Subject: test for ctr

---
 tests/hazmat/primitives/test_block.py | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'tests')

diff --git a/tests/hazmat/primitives/test_block.py b/tests/hazmat/primitives/test_block.py
index ad56f77e..52221cb6 100644
--- a/tests/hazmat/primitives/test_block.py
+++ b/tests/hazmat/primitives/test_block.py
@@ -139,3 +139,11 @@ class TestModeValidation(object):
                 modes.CFB(b"abc"),
                 backend,
             )
+
+    def test_ctr(self, backend):
+        with pytest.raises(ValueError):
+            Cipher(
+                algorithms.AES(b"\x00" * 16),
+                modes.CFB(b"abc"),
+                backend,
+            )
-- 
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