Merge branch 'master' of https://github.com/pyca/cryptography into verify

Conflicts:
	tests/hazmat/primitives/test_hashes.py
	tests/hazmat/primitives/test_hmac.py

1 files changed, 11 insertions, 1 deletions

diff --git a/tests/utils.py b/tests/utils.py
index 94f97d59..82021a5f 100644
--- a/tests/utils.py
+++ b/tests/utils.py
@@ -11,7 +11,17 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import os.path
+import os
+
+import pytest
+
+
+def check_for_iface(name, iface, item):
+    if name in item.keywords and "backend" in item.funcargs:
+        if not isinstance(item.funcargs["backend"], iface):
+            pytest.skip("{0} backend does not support {1}".format(
+                item.funcargs["backend"], name
+            ))
 
 
 def load_vectors_from_file(filename, loader):