move all tests to nova/tests/unit

As part of the split of functional and unit tests we need to isolate
the unit tests into a separate directory for having multiple test
targets in a sane way.

Part of bp:functional-tests-for-nova

Change-Id: Id42ba373c1bda6a312b673ab2b489ca56da8c628

nova/tests/unit/api/openstack/common.py

@@ -0,0 +1,55 @@
+# Copyright 2011 OpenStack Foundation
+# 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.
+
+from oslo.serialization import jsonutils
+import webob
+
+
+def webob_factory(url):
+    """Factory for removing duplicate webob code from tests."""
+
+    base_url = url
+
+    def web_request(url, method=None, body=None):
+        req = webob.Request.blank("%s%s" % (base_url, url))
+        if method:
+            req.content_type = "application/json"
+            req.method = method
+        if body:
+            req.body = jsonutils.dumps(body)
+        return req
+    return web_request
+
+
+def compare_links(actual, expected):
+    """Compare xml atom links."""
+
+    return compare_tree_to_dict(actual, expected, ('rel', 'href', 'type'))
+
+
+def compare_media_types(actual, expected):
+    """Compare xml media types."""
+
+    return compare_tree_to_dict(actual, expected, ('base', 'type'))
+
+
+def compare_tree_to_dict(actual, expected, keys):
+    """Compare parts of lxml.etree objects to dicts."""
+
+    for elem, data in zip(actual, expected):
+        for key in keys:
+            if elem.get(key) != data.get(key):
+                return False
+    return True