Enable client V2 to download images

Added the CLI option image-download to download an image via API V2. Added utility function to save an image. Added common iterator to validate the checksum. Related to bp glance-client-v2 Change-Id: I0247f5a3462142dc5e9f3dc16cbe00c8e3d42f42
2012-08-01 16:04:37 +00:00
parent 354c98b087
commit 137b3cf975
8 changed files with 287 additions and 7 deletions
@@ -0,0 +1,45 @@
+# Copyright 2012 OpenStack LLC.
+# All Rights Reserved.
+#
+#    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 errno
+import unittest
+
+from glanceclient.common import utils
+
+
+class TestUtils(unittest.TestCase):
+
+    def test_integrity_iter_without_checksum(self):
+        try:
+            data = ''.join([f for f in utils.integrity_iter('A', None)])
+            self.fail('integrity checked passed without checksum.')
+        except IOError, e:
+            self.assertEqual(errno.EPIPE, e.errno)
+            msg = 'was 7fc56270e7a70fa81a5935b72eacbe29 expected None'
+            self.assertTrue(msg in str(e))
+
+    def test_integrity_iter_with_wrong_checksum(self):
+        try:
+            data = ''.join([f for f in utils.integrity_iter('BB', 'wrong')])
+            self.fail('integrity checked passed with wrong checksum')
+        except IOError, e:
+            self.assertEqual(errno.EPIPE, e.errno)
+            msg = 'was 9d3d9048db16a7eee539e93e3618cbe7 expected wrong'
+            self.assertTrue('expected wrong' in str(e))
+
+    def test_integrity_iter_with_checksum(self):
+        fixture = 'CCC'
+        checksum = 'defb99e69a9f1f6e06f15006b1f166ae'
+        data = ''.join([f for f in utils.integrity_iter(fixture, checksum)])