tests: Lots of fixes

Thanks to the great work done by Gökhan Göktürk.

tests/database/componentdbtest.py

@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
 #
-# Copyright (C) 2007, TUBITAK/UEKAE
+# Copyright (C) 2007-2010, TUBITAK/UEKAE
 #
 # This program is free software; you can redistribute it and/or modify it under
 # the terms of the GNU General Public License as published by the Free
@@ -15,7 +15,9 @@ import pisi
 
 class ComponentDBTestCase(testcase.TestCase):
 
-    componentdb = pisi.db.componentdb.ComponentDB()
+    def setUp(self):
+        testcase.TestCase.setUp(self)
+        self.componentdb = pisi.db.componentdb.ComponentDB()
 
     def testHasComponent(self):
         assert self.componentdb.has_component("system.base", "pardus-2007")