Improve invalidate uuid tests

- Removed the internal is_uuid_like function and
  replaced with oslo implementation directly instead.

Change-Id: I5e2e18176a1d3cad06dfedd1972f659b6d73ad95

designate/manage/pool.py

@@ -15,6 +15,7 @@
 # under the License.
 from oslo_log import log as logging
 import oslo_messaging as messaging
+from oslo_utils import uuidutils
 import stevedore.exception
 import yaml
 
@@ -27,7 +28,6 @@ from designate import objects
 from designate.objects.adapters import DesignateAdapter
 from designate import policy
 from designate import rpc
-from designate import utils
 
 
 CONF = designate.conf.CONF
@@ -74,7 +74,7 @@ class PoolCommands(base.Commands):
         self.output_message.append('-------------------')
 
         try:
-            if not utils.is_uuid_like(pool_id):
+            if not uuidutils.is_uuid_like(pool_id):
                 self.output_message.append('Not a valid uuid: %s' % pool_id)
                 raise SystemExit(1)
 
@@ -164,7 +164,7 @@ class PoolCommands(base.Commands):
     def _get_pool(self, pool_data):
         if 'id' in pool_data:
             pool_id = pool_data['id']
-            if not utils.is_uuid_like(pool_id):
+            if not uuidutils.is_uuid_like(pool_id):
                 self.output_message.append('Not a valid uuid: %s' % pool_id)
                 raise SystemExit(1)
 

designate/tests/unit/test_utils.py

@@ -33,6 +33,37 @@ class TestUtils(oslotest.base.BaseTestCase):
         self.useFixture(cfg_fixture.Config(CONF))
         self.useFixture(self.stdlog)
 
+    def test_validate_uuid(self):
+        @utils.validate_uuid('zone_id')
+        def validate_uuid(cls, zone_id):
+            return True
+        self.assertTrue(
+            validate_uuid(None, '6a8caf9d-679e-4fc1-80e9-13496f6a783f')
+        )
+
+    def test_validate_invalid_uuid(self):
+        @utils.validate_uuid('zone_id')
+        def validate_uuid(cls, zone_id):
+            return True
+
+        self.assertRaisesRegex(
+            exceptions.InvalidUUID,
+            'Invalid UUID zone_id: 62f89e5f088c7',
+            validate_uuid, None, '62f89e5f088c7'
+        )
+
+    def test_validate_uuid_no_arguments(self):
+        @utils.validate_uuid('zone_id')
+        def validate_uuid(cls):
+            return
+        self.assertRaises(exceptions.NotFound, validate_uuid)
+
+    def test_invalid_uuid_no_argument_provided(self):
+        @utils.validate_uuid('zone_id')
+        def validate_uuid(cls):
+            return
+        self.assertRaises(exceptions.NotFound, validate_uuid, None)
+
     @mock.patch('os.path.exists')
     @mock.patch('os.path.abspath')
     def test_find_config(self, mock_abspath, mock_path_exists):
@@ -213,14 +244,6 @@ class TestUtils(oslotest.base.BaseTestCase):
 
         self.assertEqual('Hello World', result)
 
-    def test_is_uuid_like(self):
-        self.assertTrue(
-            utils.is_uuid_like('ce9fcd6b-d546-4397-8a49-8ceaec37cb64')
-        )
-
-    def test_is_not_uuid_like(self):
-        self.assertFalse(utils.is_uuid_like('678'))
-
     def test_split_host_port(self):
         host, port = utils.split_host_port('abc:25')
         self.assertEqual(('abc', 25), (host, port))

designate/utils.py

@@ -139,16 +139,6 @@ def generate_uuid():
     return uuidutils.generate_uuid(dashed=True)
 
 
-def is_uuid_like(val):
-    """Returns validation of a value as a UUID.
-
-    For our purposes, a UUID is a canonical form string:
-    aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa
-
-    """
-    return uuidutils.is_uuid_like(val)
-
-
 def validate_uuid(*check):
     """
     A wrapper to ensure that API controller methods arguments are valid UUID's.
@@ -167,7 +157,7 @@ def validate_uuid(*check):
             # /v2/zones/<UUID - valid or invalid>/invalid
             # get, patch and delete return a 404, but Pecan returns a 405
             # for a POST at the same URL
-            if (len(arg_spec) != len(args)):
+            if len(arg_spec) != len(args):
                 raise exceptions.NotFound()
 
             # Ensure that we have non-empty parameters in the cases where we
@@ -175,14 +165,15 @@ def validate_uuid(*check):
             # This is for URLs like /v2/zones/nameservers
             # Ideally Pecan should be handling these cases, but until then
             # we handle those cases here.
-            if (len(args) <= len(check)):
+            if len(args) <= len(check):
                 raise exceptions.NotFound()
 
             for name in check:
                 pos = arg_spec.index(name)
-                if not is_uuid_like(args[pos]):
+                if not uuidutils.is_uuid_like(args[pos]):
-                    msg = f'Invalid UUID {name}: {args[pos]}'
+                    raise exceptions.InvalidUUID(
-                    raise exceptions.InvalidUUID(msg)
+                        f'Invalid UUID {name}: {args[pos]}'
+                    )
             return f(*args, **kwargs)
         return functools.wraps(f)(wrapper)
     return inner