adds message queue unit testing

mediagoblin/tests/test_messages.py

@@ -0,0 +1,44 @@
+# GNU MediaGoblin -- federated, autonomous media hosting
+# Copyright (C) 2011 Free Software Foundation, Inc
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+from mediagoblin.messages import fetch_messages, add_message
+from mediagoblin.tests.tools import setup_fresh_app
+from mediagoblin import util
+
+
+@setup_fresh_app
+def test_messages(test_app):
+    """
+    Added messages should show up in the request.session,
+    fetched messages should be the same as the added ones,
+    and fetching should clear the message list.
+    """
+    # Aquire a request object
+    test_app.get('/')
+    context = util.TEMPLATE_TEST_CONTEXT['mediagoblin/root.html']
+    request = context['request']
+    
+    # The message queue should be empty
+    assert request.session.get('messages', []) == []
+    
+    # Adding a message should modify the session accordingly
+    add_message(request, 'herp_derp', 'First!')
+    test_msg_queue = [{'text': 'First!', 'level': 'herp_derp'}]
+    assert request.session['messages'] == test_msg_queue
+    
+    # fetch_messages should return and empty the queue
+    assert fetch_messages(request) == test_msg_queue
+    assert request.session.get('messages') == []