Fix argument order for assertEqual to (expected, observed)

assertEqual expects that the arguments provided to it should be
(expected, observed). If a particluar order is kept as a convention,
then it helps to provide a cleaner message to the developer if Unit
Tests fail. The following patch fixes this issue.

TrivialFix

Change-Id: I817a654733e0f3886ca85778a49aa579592f60ff
Closes-Bug: #1259292

cinderclient/tests/unit/test_auth_plugins.py

@@ -182,7 +182,7 @@ class DeprecatedAuthPluginTest(utils.TestCase):
                                auth_system="fakewithauthurl",
                                auth_plugin=plugin)
             cs.client.authenticate()
-            self.assertEqual(cs.client.auth_url, "http://faked/v2.0")
+            self.assertEqual("http://faked/v2.0", cs.client.auth_url)
 
         test_auth_call()
 
@@ -336,7 +336,7 @@ class AuthPluginTest(utils.TestCase):
         cs = client.Client("username", "password", "project_id",
                            auth_system="fakewithauthurl",
                            auth_plugin=plugin)
-        self.assertEqual(cs.client.auth_url, "http://faked/v2.0")
+        self.assertEqual("http://faked/v2.0", cs.client.auth_url)
 
     @mock.patch.object(pkg_resources, "iter_entry_points")
     def test_exception_if_no_authenticate(self, mock_iter_entry_points):

cinderclient/tests/unit/test_http.py

@@ -156,7 +156,7 @@ class ClientTest(utils.TestCase):
             resp, body = cl.get("/hi")
 
         test_get_call()
-        self.assertEqual(self.requests, [])
+        self.assertEqual([], self.requests)
 
     def test_retry_limit(self):
         cl = get_authed_client(retries=1)
@@ -277,4 +277,4 @@ class ClientTest(utils.TestCase):
             resp, body = cl.get("/hi")
 
         test_get_call()
-        self.assertEqual(self.requests, [])
+        self.assertEqual([], self.requests)

cinderclient/tests/unit/test_shell.py

@@ -113,14 +113,14 @@ class ShellTest(utils.TestCase):
         self.register_keystone_auth_fixture(mocker, os_auth_url)
         v2_url, v3_url = _shell._discover_auth_versions(
             None, auth_url=os_auth_url)
-        self.assertEqual(v2_url, os_auth_url, "Expected v2 url")
+        self.assertEqual(os_auth_url, v2_url, "Expected v2 url")
         self.assertIsNone(v3_url, "Expected no v3 url")
 
         os_auth_url = "https://DiscoveryNotSupported.discovery.com:35357/v3.0"
         self.register_keystone_auth_fixture(mocker, os_auth_url)
         v2_url, v3_url = _shell._discover_auth_versions(
             None, auth_url=os_auth_url)
-        self.assertEqual(v3_url, os_auth_url, "Expected v3 url")
+        self.assertEqual(os_auth_url, v3_url, "Expected v3 url")
         self.assertIsNone(v2_url, "Expected no v2 url")
 
     @requests_mock.Mocker()

cinderclient/tests/unit/utils.py

@@ -68,8 +68,8 @@ class FixturedTestCase(TestCase):
             self.data_fixture = self.useFixture(fix)
 
     def assert_called(self, method, path, body=None):
-        self.assertEqual(self.requests.last_request.method, method)
-        self.assertEqual(self.requests.last_request.path_url, path)
+        self.assertEqual(method, self.requests.last_request.method)
+        self.assertEqual(path, self.requests.last_request.path_url)
 
         if body:
             req_data = self.requests.last_request.body
@@ -78,7 +78,7 @@ class FixturedTestCase(TestCase):
             if not isinstance(body, six.string_types):
                 # json load if the input body to match against is not a string
                 req_data = json.loads(req_data)
-            self.assertEqual(req_data, body)
+            self.assertEqual(body, req_data)
 
 
 class TestResponse(requests.Response):

cinderclient/tests/unit/v1/test_shell.py

@@ -105,7 +105,7 @@ class ShellTest(utils.TestCase):
                 'id': 1234, 'display_name': 'sample-volume',
                 'os-vol-tenant-attr:tenant_id': 'fake_tenant'})
         shell_v1._translate_volume_keys([v])
-        self.assertEqual(v.tenant_id, 'fake_tenant')
+        self.assertEqual('fake_tenant', v.tenant_id)
 
     def test_list(self):
         self.run_command('list')