Add basic api version test coverage

Change-Id: Idb04e81ce5954ca8b5e387dc7c0776fdf7d08779

designate/tests/unit/api/test_version.py

@@ -0,0 +1,78 @@
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+
+from oslo_config import cfg
+from oslo_config import fixture as cfg_fixture
+import oslotest.base
+import webtest
+
+from designate.api import versions
+from designate.common import constants
+
+
+CONF = cfg.CONF
+
+
+class TestApiVersion(oslotest.base.BaseTestCase):
+
+    def setUp(self):
+        super(TestApiVersion, self).setUp()
+        self.useFixture(cfg_fixture.Config(CONF))
+
+    def test_add_a_version(self):
+        api_url = 'http://localhost/v2'
+        results = []
+
+        versions._add_a_version(
+            results, 'v2.1', api_url, constants.EXPERIMENTAL,
+            '2022-08-10T00:00:00Z')
+
+        self.assertEqual(1, len(results))
+        self.assertEqual('v2.1', results[0]['id'])
+        self.assertEqual(constants.EXPERIMENTAL, results[0]['status'])
+        self.assertEqual('2022-08-10T00:00:00Z', results[0]['updated'])
+        self.assertEqual(2, len(results[0]['links']))
+
+    def test_get_versions(self):
+        CONF.set_override('enable_host_header', False, 'service:api')
+        CONF.set_override(
+            'api_base_uri', 'http://127.0.0.2:9001/', 'service:api'
+        )
+
+        self.app = versions.factory({})
+        self.client = webtest.TestApp(self.app)
+
+        response = self.client.get('/')
+        self.assertEqual(200, response.status_int)
+        self.assertEqual('application/json', response.content_type)
+
+        self.assertEqual(2, len(response.json['versions']))
+        self.assertEqual(
+            'http://127.0.0.2:9001/v2',
+            response.json['versions'][0]['links'][0]['href']
+        )
+
+    def test_get_versions_with_enable_host_header(self):
+        CONF.set_override('enable_host_header', True, 'service:api')
+
+        self.app = versions.factory({})
+        self.client = webtest.TestApp(self.app)
+
+        response = self.client.get('/')
+        self.assertEqual(200, response.status_int)
+        self.assertEqual('application/json', response.content_type)
+
+        self.assertEqual(2, len(response.json['versions']))
+        self.assertEqual(
+            'http://localhost/v2',
+            response.json['versions'][0]['links'][0]['href']
+        )