Add unit tests for basic auth methods in token clients

This commit adds the first missing unit tests to the token clients.
Previously there was no coverage at all for these clients so
there was no in-tree method for verifying the functionality of these
classes. The coverage of this commit is limited and only covers 2
basic uses of the auth() method in both the v2 and v3 token clients.
It will be expanded in future patches. As part of enabling this
coverage the fake_http class had to be modified to return a user
provided body and response code.

Change-Id: I1888b31550e5db4343003b05c0f6865444756789

tempest_lib/tests/fake_http.py

@@ -34,7 +34,7 @@ class fake_httplib2(object):
             }
             return (fake_headers, return_obj)
         elif isinstance(self.return_type, int):
-            body = "fake_body"
+            body = body or "fake_body"
             header_info = {
                 'content-type': 'text/plain',
                 'status': str(self.return_type),

tempest_lib/tests/services/identity/v2/test_token_client.py

@@ -0,0 +1,66 @@
+# Copyright 2015 Hewlett-Packard Development Company, L.P.
+#
+# 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.
+
+import json
+
+from oslotest import mockpatch
+
+from tempest_lib.common import rest_client
+from tempest_lib.services.identity.v2 import token_client
+from tempest_lib.tests import base
+from tempest_lib.tests import fake_http
+
+
+class TestTokenClientV2(base.TestCase):
+
+    def setUp(self):
+        super(TestTokenClientV2, self).setUp()
+        self.fake_200_http = fake_http.fake_httplib2(return_type=200)
+
+    def test_auth(self):
+        token_client_v2 = token_client.TokenClientJSON('fake_url')
+        post_mock = self.useFixture(mockpatch.PatchObject(
+            token_client_v2, 'post', return_value=self.fake_200_http.request(
+                'fake_url', body={'access': {'token': 'fake_token'}})))
+        resp = token_client_v2.auth('fake_user', 'fake_pass')
+        self.assertIsInstance(resp, rest_client.ResponseBody)
+        req_dict = json.dumps({
+            'auth': {
+                'passwordCredentials': {
+                    'username': 'fake_user',
+                    'password': 'fake_pass',
+                },
+            }
+        })
+        post_mock.mock.assert_called_once_with('fake_url/tokens',
+                                               body=req_dict)
+
+    def test_auth_with_tenant(self):
+        token_client_v2 = token_client.TokenClientJSON('fake_url')
+        post_mock = self.useFixture(mockpatch.PatchObject(
+            token_client_v2, 'post', return_value=self.fake_200_http.request(
+                'fake_url', body={'access': {'token': 'fake_token'}})))
+        resp = token_client_v2.auth('fake_user', 'fake_pass', 'fake_tenant')
+        self.assertIsInstance(resp, rest_client.ResponseBody)
+        req_dict = json.dumps({
+            'auth': {
+                'tenantName': 'fake_tenant',
+                'passwordCredentials': {
+                    'username': 'fake_user',
+                    'password': 'fake_pass',
+                },
+            }
+        })
+        post_mock.mock.assert_called_once_with('fake_url/tokens',
+                                               body=req_dict)

tempest_lib/tests/services/identity/v3/test_token_client.py

@@ -0,0 +1,81 @@
+# Copyright 2015 Hewlett-Packard Development Company, L.P.
+#
+# 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.
+
+import json
+
+from oslotest import mockpatch
+
+from tempest_lib.common import rest_client
+from tempest_lib.services.identity.v3 import token_client
+from tempest_lib.tests import base
+from tempest_lib.tests import fake_http
+
+
+class TestTokenClientV2(base.TestCase):
+
+    def setUp(self):
+        super(TestTokenClientV2, self).setUp()
+        self.fake_201_http = fake_http.fake_httplib2(return_type=201)
+
+    def test_auth(self):
+        token_client_v3 = token_client.V3TokenClientJSON('fake_url')
+        post_mock = self.useFixture(mockpatch.PatchObject(
+            token_client_v3, 'post', return_value=self.fake_201_http.request(
+                'fake_url', body={'access': {'token': 'fake_token'}})))
+        resp = token_client_v3.auth(username='fake_user', password='fake_pass')
+        self.assertIsInstance(resp, rest_client.ResponseBody)
+        req_dict = json.dumps({
+            'auth': {
+                'identity': {
+                    'methods': ['password'],
+                    'password': {
+                        'user': {
+                            'name': 'fake_user',
+                            'password': 'fake_pass',
+                        }
+                    }
+                },
+            }
+        })
+        post_mock.mock.assert_called_once_with('fake_url/auth/tokens',
+                                               body=req_dict)
+
+    def test_auth_with_tenant(self):
+        token_client_v2 = token_client.V3TokenClientJSON('fake_url')
+        post_mock = self.useFixture(mockpatch.PatchObject(
+            token_client_v2, 'post', return_value=self.fake_201_http.request(
+                'fake_url', body={'access': {'token': 'fake_token'}})))
+        resp = token_client_v2.auth(username='fake_user', password='fake_pass',
+                                    project_name='fake_tenant')
+        self.assertIsInstance(resp, rest_client.ResponseBody)
+        req_dict = json.dumps({
+            'auth': {
+                'identity': {
+                    'methods': ['password'],
+                    'password': {
+                        'user': {
+                            'name': 'fake_user',
+                            'password': 'fake_pass',
+                        }
+                    }},
+                'scope': {
+                    'project': {
+                        'name': 'fake_tenant'
+                    }
+                },
+            }
+        })
+
+        post_mock.mock.assert_called_once_with('fake_url/auth/tokens',
+                                               body=req_dict)