Add glance api v2 testing.

This commit adds initial support for the glance v2 api. It adds
some basic image tests and a new v2 client. The client supports
create, get metadata, store, get image, and delete.

Change-Id: Ic8c79356d4dcadc35bb3a7aa0deac2336e370827
diff --git a/tempest/tests/image/v2/test_images.py b/tempest/tests/image/v2/test_images.py
new file mode 100644
index 0000000..9abf28d
--- /dev/null
+++ b/tempest/tests/image/v2/test_images.py
@@ -0,0 +1,126 @@
+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+
+# Copyright 2013 OpenStack, LLC
+# All Rights Reserved.
+# Copyright 2013 IBM Corp
+#
+#    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 cStringIO as StringIO
+import random
+
+from tempest import clients
+from tempest import exceptions
+import tempest.test
+from tempest.test import attr
+
+
+class CreateRegisterImagesTest(tempest.test.BaseTestCase):
+
+    """
+    Here we test the registration and creation of images
+    """
+
+    @classmethod
+    def setUpClass(cls):
+        cls.os = clients.Manager()
+        cls.client = cls.os.image_client_v2
+        cls.created_images = []
+
+    @classmethod
+    def tearDownClass(cls):
+        for image_id in cls.created_images:
+            cls.client.delete(image_id)
+
+    @attr(type='negative')
+    def test_register_with_invalid_container_format(self):
+        # Negative tests for invalid data supplied to POST /images
+        self.assertRaises(exceptions.BadRequest, self.client.create_image,
+                          'test', 'wrong', 'vhd')
+
+    @attr(type='negative')
+    def test_register_with_invalid_disk_format(self):
+        self.assertRaises(exceptions.BadRequest, self.client.create_image,
+                          'test', 'bare', 'wrong')
+
+    @attr(type='image')
+    def test_register_then_upload(self):
+        # Register, then upload an image
+        resp, body = self.client.create_image('New Name', 'bare', 'raw',
+                                              is_public=True)
+        self.assertTrue('id' in body)
+        image_id = body.get('id')
+        self.created_images.append(image_id)
+        self.assertTrue('name' in body)
+        self.assertEqual('New Name', body.get('name'))
+        self.assertTrue('visibility' in body)
+        self.assertTrue(body.get('visibility') == 'public')
+        self.assertTrue('status' in body)
+        self.assertEqual('queued', body.get('status'))
+
+        # Now try uploading an image file
+        image_file = StringIO.StringIO(('*' * 1024))
+        resp, body = self.client.store_image(image_id, image_file)
+        self.assertEqual(resp.status, 204)
+        resp, body = self.client.get_image_metadata(image_id)
+        self.assertTrue('size' in body)
+        self.assertEqual(1024, body.get('size'))
+
+
+class ListImagesTest(tempest.test.BaseTestCase):
+
+    """
+    Here we test the listing of image information
+    """
+
+    @classmethod
+    def setUpClass(cls):
+        cls.os = clients.Manager()
+        cls.client = cls.os.image_client_v2
+        cls.created_images = []
+
+        # We add a few images here to test the listing functionality of
+        # the images API
+        for x in xrange(0, 10):
+            cls.created_images.append(cls._create_standard_image(x))
+
+    @classmethod
+    def tearDownClass(cls):
+        for image_id in cls.created_images:
+            cls.client.delete_image(image_id)
+            cls.client.wait_for_resource_deletion(image_id)
+
+    @classmethod
+    def _create_standard_image(cls, number):
+        """
+        Create a new standard image and return the ID of the newly-registered
+        image. Note that the size of the new image is a random number between
+        1024 and 4096
+        """
+        image_file = StringIO.StringIO('*' * random.randint(1024, 4096))
+        name = 'New Standard Image %s' % number
+        resp, body = cls.client.create_image(name, 'bare', 'raw',
+                                             is_public=True)
+        image_id = body['id']
+        resp, body = cls.client.store_image(image_id, data=image_file)
+
+        return image_id
+
+    @attr(type='image')
+    def test_index_no_params(self):
+        # Simple test to see all fixture images returned
+        resp, images_list = self.client.image_list()
+        self.assertEqual(resp['status'], '200')
+        image_list = map(lambda x: x['id'], images_list)
+        for image in self.created_images:
+            self.assertTrue(image in image_list)