unit testing: add a new test to the db module

this test does the package metadata extraction, database insertion
and retrieval and compares the two dictionaries (the one returned
by the extractor against the one returned by the database)

libraries/tests/db.py

@@ -1,16 +1,16 @@
-#!/usr/bin/env python
-
 import sys
 import unittest
 import os
 from entropy.client.interfaces import Client
 from entropy.db import LocalRepository
+import _misc
 
 class LocalRepositoryTest(unittest.TestCase):
 
     def setUp(self):
         self.Client = Client(noclientdb = 2, indexing = False, xcache = False,
             repo_validation = False)
+        self.test_db_name = "test_suite"
 
     def tearDown(self):
         """
@@ -19,14 +19,25 @@ class LocalRepositoryTest(unittest.TestCase):
         sys.stdout.write("%s ran\n" % (self,))
         sys.stdout.flush()
 
+    def __open_test_db(self):
+        return self.Client.open_memory_database(dbname = self.test_db_name)
+
     def test_db_creation(self):
-        dbname = 'test_suite'
-        mdb = self.Client.open_memory_database(dbname = dbname)
+        mdb = self.__open_test_db()
         self.assert_(isinstance(mdb,LocalRepository))
-        self.assertEqual(dbname,mdb.dbname)
+        self.assertEqual(self.test_db_name,mdb.dbname)
         self.assert_(mdb.doesTableExist('baseinfo'))
         self.assert_(mdb.doesTableExist('extrainfo'))
         mdb.closeDB()
 
+    def test_db_insert_and_match(self):
+        test_pkg = _misc.get_test_package()
+        data = self.Client.extract_pkg_metadata(test_pkg, silent = True)
+        mdb = self.__open_test_db()
+        idpackage, rev, new_data = mdb.handlePackage(data)
+        db_data = mdb.getPackageData(idpackage, trigger_unicode = True)
+        mdb.closeDB()
+        self.assertEqual(new_data, db_data)
+
 if __name__ == '__main__':
     unittest.main()