Pulp

Unit test suites need to set up their own database connection, and it seems that the streamer tests do not do this:

$ nosetests -sx streamer/test/unit/streamer/test_server.py
...............E
======================================================================
ERROR: Assert a deferred download entry is made.
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Traceback (most recent call last):
  File "/home/fedora/.virtualenvs/pulp/lib/python2.7/site-packages/mock.py", line 1193, in patched
    arg = patching.__enter__()
  File "/home/fedora/.virtualenvs/pulp/lib/python2.7/site-packages/mock.py", line 1349, in __enter__
    _name=self.attribute, **kwargs)
  File "/home/fedora/.virtualenvs/pulp/lib/python2.7/site-packages/mock.py", line 2200, in create_autospec
    _name='()', _parent=mock)
  File "/home/fedora/.virtualenvs/pulp/lib/python2.7/site-packages/mock.py", line 2221, in create_autospec
    original = getattr(spec, entry)
  File "/usr/lib/python2.7/site-packages/mongoengine/queryset/manager.py", line 37, in __get__
    queryset = queryset_class(owner, owner._get_collection())
  File "/usr/lib/python2.7/site-packages/mongoengine/document.py", line 177, in _get_collection
    db = cls._get_db()
  File "/usr/lib/python2.7/site-packages/mongoengine/document.py", line 170, in _get_db
    return get_db(cls._meta.get("db_alias", DEFAULT_CONNECTION_NAME))
  File "/usr/lib/python2.7/site-packages/mongoengine/connection.py", line 145, in get_db
    conn = get_connection(alias)
  File "/usr/lib/python2.7/site-packages/mongoengine/connection.py", line 101, in get_connection
    raise ConnectionError(msg)
ConnectionError: You have not defined a default connection

Here is an example of how this is done for pulp.server tests:

$ cat server/test/unit/__init__.py
from pulp.devel.unit.server import base as devel_base

def setup():
    """
    Set up the database connection for the tests to use.
    """
    devel_base.start_database_connection()

def teardown():
    """
    Drop the test database.
    """
    devel_base.drop_database()

Without this, the streamer tests cannot be run on their own.