diff --git a/tests/test_fernet.py b/tests/test_fernet.py
index 34760e3..0683d95 100644
--- a/tests/test_fernet.py
+++ b/tests/test_fernet.py
@@ -41,14 +41,19 @@
         ])
 
 
+def test_default_backend():
+    f = Fernet(Fernet.generate_key())
+    assert f._backend is default_backend()
+
+
 @pytest.mark.cipher
+@pytest.mark.supported(
+    only_if=lambda backend: backend.cipher_supported(
+        algorithms.AES("\x00" * 32), modes.CBC("\x00" * 16)
+    ),
+    skip_message="Does not support AES CBC",
+)
 class TestFernet(object):
-    @pytest.mark.supported(
-        only_if=lambda backend: backend.cipher_supported(
-            algorithms.AES("\x00" * 32), modes.CBC("\x00" * 16)
-        ),
-        skip_message="Does not support AES CBC",
-    )
     @json_parametrize(
         ("secret", "now", "iv", "src", "token"), "generate.json",
     )
@@ -61,12 +66,6 @@
         )
         assert actual_token == token.encode("ascii")
 
-    @pytest.mark.supported(
-        only_if=lambda backend: backend.cipher_supported(
-            algorithms.AES("\x00" * 32), modes.CBC("\x00" * 16)
-        ),
-        skip_message="Does not support AES CBC",
-    )
     @json_parametrize(
         ("secret", "now", "src", "ttl_sec", "token"), "verify.json",
     )
@@ -78,12 +77,6 @@
         payload = f.decrypt(token.encode("ascii"), ttl=ttl_sec)
         assert payload == src.encode("ascii")
 
-    @pytest.mark.supported(
-        only_if=lambda backend: backend.cipher_supported(
-            algorithms.AES("\x00" * 32), modes.CBC("\x00" * 16)
-        ),
-        skip_message="Does not support AES CBC",
-    )
     @json_parametrize(("secret", "token", "now", "ttl_sec"), "invalid.json")
     def test_invalid(self, secret, token, now, ttl_sec, backend, monkeypatch):
         f = Fernet(secret.encode("ascii"), backend=backend)
@@ -92,34 +85,16 @@
         with pytest.raises(InvalidToken):
             f.decrypt(token.encode("ascii"), ttl=ttl_sec)
 
-    @pytest.mark.supported(
-        only_if=lambda backend: backend.cipher_supported(
-            algorithms.AES("\x00" * 32), modes.CBC("\x00" * 16)
-        ),
-        skip_message="Does not support AES CBC",
-    )
     def test_invalid_start_byte(self, backend):
         f = Fernet(Fernet.generate_key(), backend=backend)
         with pytest.raises(InvalidToken):
             f.decrypt(base64.urlsafe_b64encode(b"\x81"))
 
-    @pytest.mark.supported(
-        only_if=lambda backend: backend.cipher_supported(
-            algorithms.AES("\x00" * 32), modes.CBC("\x00" * 16)
-        ),
-        skip_message="Does not support AES CBC",
-    )
     def test_timestamp_too_short(self, backend):
         f = Fernet(Fernet.generate_key(), backend=backend)
         with pytest.raises(InvalidToken):
             f.decrypt(base64.urlsafe_b64encode(b"\x80abc"))
 
-    @pytest.mark.supported(
-        only_if=lambda backend: backend.cipher_supported(
-            algorithms.AES("\x00" * 32), modes.CBC("\x00" * 16)
-        ),
-        skip_message="Does not support AES CBC",
-    )
     def test_unicode(self, backend):
         f = Fernet(base64.urlsafe_b64encode(b"\x00" * 32), backend=backend)
         with pytest.raises(TypeError):
@@ -127,27 +102,11 @@
         with pytest.raises(TypeError):
             f.decrypt(six.u(""))
 
-    @pytest.mark.supported(
-        only_if=lambda backend: backend.cipher_supported(
-            algorithms.AES("\x00" * 32), modes.CBC("\x00" * 16)
-        ),
-        skip_message="Does not support AES CBC",
-    )
     @pytest.mark.parametrize("message", [b"", b"Abc!", b"\x00\xFF\x00\x80"])
     def test_roundtrips(self, message, backend):
         f = Fernet(Fernet.generate_key(), backend=backend)
         assert f.decrypt(f.encrypt(message)) == message
 
-    def test_default_backend(self):
-        f = Fernet(Fernet.generate_key())
-        assert f._backend is default_backend()
-
-    @pytest.mark.supported(
-        only_if=lambda backend: backend.cipher_supported(
-            algorithms.AES("\x00" * 32), modes.CBC("\x00" * 16)
-        ),
-        skip_message="Does not support AES CBC",
-    )
     def test_bad_key(self, backend):
         with pytest.raises(ValueError):
             Fernet(base64.urlsafe_b64encode(b"abc"), backend=backend)