Started working on the invalid cases

1 files changed, 22 insertions, 6 deletions

diff --git a/tests/test_fernet.py b/tests/test_fernet.py
index 382a232c..15071718 100644
--- a/tests/test_fernet.py
+++ b/tests/test_fernet.py
@@ -9,10 +9,11 @@ import pytest
 
 import six
 
-from cryptography.fernet import Fernet
+from cryptography.fernet import Fernet, InvalidToken
 
 
-def json_parametrize(keys, path):
+def json_parametrize(keys, fname):
+    path = os.path.join(os.path.dirname(__file__), "vectors", "fernet", fname)
     with open(path) as f:
         data = json.load(f)
     return pytest.mark.parametrize(keys, [
@@ -23,8 +24,7 @@ def json_parametrize(keys, path):
 
 class TestFernet(object):
     @json_parametrize(
-        ("secret", "now", "iv", "src", "token"),
-        os.path.join(os.path.dirname(__file__), "vectors", "fernet", "generate.json")
+        ("secret", "now", "iv", "src", "token"), "generate.json",
     )
     def test_generate(self, secret, now, iv, src, token):
         f = Fernet(base64.urlsafe_b64decode(secret.encode("ascii")))
@@ -36,8 +36,7 @@ class TestFernet(object):
         assert actual_token == token
 
     @json_parametrize(
-        ("secret", "now", "src", "ttl_sec", "token"),
-        os.path.join(os.path.dirname(__file__), "vectors", "fernet", "verify.json")
+        ("secret", "now", "src", "ttl_sec", "token"), "verify.json",
     )
     def test_verify(self, secret, now, src, ttl_sec, token):
         f = Fernet(base64.urlsafe_b64decode(secret.encode("ascii")))
@@ -47,3 +46,20 @@ class TestFernet(object):
             current_time=calendar.timegm(iso8601.parse_date(now).utctimetuple())
         )
         assert payload == src
+
+    @json_parametrize(("secret", "token", "now", "ttl_sec"), "invalid.json")
+    def test_invalid(self, secret, token, now, ttl_sec):
+        f = Fernet(base64.urlsafe_b64decode(secret.encode("ascii")))
+        with pytest.raises(InvalidToken):
+            f.decrypt(
+                token.encode("ascii"),
+                ttl=ttl_sec,
+                current_time=calendar.timegm(iso8601.parse_date(now).utctimetuple())
+            )
+
+    def test_unicode(self):
+        f = Fernet(b"\x00" * 32)
+        with pytest.raises(TypeError):
+            f.encrypt(six.u(""))
+        with pytest.raises(TypeError):
+            f.decrypt(six.u(""))