예제 #1
0
class AnnouncementSystemSetupTestCase(unittest.TestCase):
    def setUp(self):
        self.env = EnvironmentStub(enable=['trac.*'])
        self.env.path = tempfile.mkdtemp()
        self.db_mgr = DatabaseManager(self.env)
        self.an_sys = AnnouncementSystem(self.env)

    def tearDown(self):
        self.env.shutdown()
        shutil.rmtree(self.env.path)

    # Helpers

    def _schema_init(self, schema=None):
        # Current announcer schema is setup with enabled component anyway.
        #   Revert these changes for clean install testing.
        with self.env.db_transaction as db:
            db("DROP TABLE IF EXISTS subscriptions")
            db("DROP TABLE IF EXISTS subscription")
            db("DROP TABLE IF EXISTS subscription_attribute")
            db("DELETE FROM system WHERE name='announcer_version'")

            if schema:
                connector = self.db_mgr.get_connector()[0]
                for table in schema:
                    for stmt in connector.to_sql(table):
                        db(stmt)

    def _verify_curr_schema(self):
        self.assertFalse(self.an_sys.environment_needs_upgrade())
        with self.env.db_query as db:
            cursor = db.cursor()
            cursor.execute("SELECT * FROM subscription_attribute")
            columns = [col[0] for col in cursor.cursor.description]
        self.assertTrue('name' not in columns)
        self.assertTrue('value' not in columns)
        self.assertEquals(
            ['id', 'sid', 'authenticated', 'class', 'realm', 'target'],
            columns
        )
        with self.env.db_query as db:
            cursor = db.cursor()
            cursor.execute("""
                SELECT value
                  FROM system
                 WHERE name='announcer_version'
            """)
            version = int(cursor.fetchone()[0])
        self.assertEquals(db_default.schema_version, version)

    def _verify_version_unregistered(self):
        with self.env.db_query as db:
            cursor = db.cursor()
            cursor.execute("""
                SELECT value
                  FROM system
                 WHERE name='announcer_version'
            """)
            self.assertFalse(cursor.fetchone())

    def test_new_install(self):
        # Just do db table clean-up.
        self._schema_init()

        self.assertEquals(0, self.an_sys.get_schema_version())
        self.assertTrue(self.an_sys.environment_needs_upgrade())

        self.an_sys.upgrade_environment()
        self._verify_curr_schema()

    def test_upgrade_v1_to_current(self):
        # The initial db schema from r3015 - 10-Jan-2008 by Stephen Hansen.
        schema = [
            Table('subscriptions', key='id')[
                Column('id', auto_increment=True),
                Column('sid'),
                Column('enabled', type='int'),
                Column('managed', type='int'),
                Column('realm'),
                Column('category'),
                Column('rule'),
                Column('destination'),
                Column('format'),
                Index(['id']),
                Index(['realm', 'category', 'enabled']),
            ]
        ]
        self._schema_init(schema)

        # Populate tables with test data.
        with self.env.db_transaction as db:
            cursor = db.cursor()
            cursor.executemany("""
                INSERT INTO session
                       (sid,authenticated,last_visit)
                VALUES (%s,%s,%s)
            """, (('somebody', '0', '0'), ('user', '1', '0')))
            cursor.executemany("""
                INSERT INTO session_attribute
                       (sid,authenticated,name,value)
                VALUES (%s,1,%s,%s)
            """, (('user', 'announcer_email_format_ticket', 'text/html'),
                  ('user', 'announcer_specified_email', '')))
            cursor.executemany("""
                INSERT INTO subscriptions
                       (sid,enabled,managed,
                        realm,category,rule,destination,format)
                VALUES (%s,%s,0,%s,%s,%s,%s,%s)
            """, (('somebody', 1, 'ticket', 'changed', '1', '1', 'email'),
                  ('user', 1, 'ticket', 'attachment added', '1', '1', 'email')))

        self.assertEquals(1, self.an_sys.get_schema_version())
        target = 6
        db_default.schema_version = target
        self.assertTrue(self.an_sys.environment_needs_upgrade())

        self.an_sys.upgrade_environment()
        self._verify_curr_schema()

    def test_upgrade_to_schema_v2(self):
        # The initial db schema from r3015 - 10-Jan-2008 by Stephen Hansen.
        schema = [
            Table('subscriptions', key='id')[
                Column('id', auto_increment=True),
                Column('sid'),
                Column('enabled', type='int'),
                Column('managed', type='int'),
                Column('realm'),
                Column('category'),
                Column('rule'),
                Column('destination'),
                Column('format'),
                Index(['id']),
                Index(['realm', 'category', 'enabled']),
            ]
        ]
        self._schema_init(schema)

        # Populate tables with test data.
        with self.env.db_transaction as db:
            cursor = db.cursor()
            cursor.executemany("""
                INSERT INTO session
                       (sid,authenticated,last_visit)
                VALUES (%s,%s,%s)
            """, (('somebody', '0', '0'), ('user', '1', '0')))
            cursor.executemany("""
                INSERT INTO session_attribute
                       (sid,authenticated,name,value)
                VALUES (%s,1,%s,%s)
            """, (('user', 'announcer_email_format_ticket', 'text/html'),
                  ('user', 'announcer_specified_email', '')))
            cursor.executemany("""
                INSERT INTO subscriptions
                       (sid,enabled,managed,
                        realm,category,rule,destination,format)
                VALUES (%s,%s,0,%s,%s,%s,%s,%s)
            """, (('somebody', 1, 'ticket', 'changed', '1', '1', 'email'),
                  ('user', 1, 'ticket', 'attachment added', '1', '1', 'email')))

        self.assertEquals(1, self.an_sys.get_schema_version())
        target = 2
        db_default.schema_version = target
        self.assertTrue(self.an_sys.environment_needs_upgrade())

        # Change from r3047 - 13-Jan-2008 for announcer-0.2 by Stephen Hansen.
        # - 'subscriptions.destination', 'subscriptions.format'
        # + 'subscriptions.authenticated', 'subscriptions.transport'
        # 'subscriptions.managed' type='int' --> (default == char)
        self.an_sys.upgrade_environment()

        self.assertEquals(target, self.an_sys.get_schema_version())
        self._verify_version_unregistered()
        with self.env.db_query as db:
            cursor = db.cursor()
            cursor.execute("SELECT * FROM subscriptions")
            columns = [col[0] for col in cursor.cursor.description]
        self.assertEquals(['id', 'sid', 'authenticated', 'enabled', 'managed',
                           'realm', 'category', 'rule', 'transport'],
                          columns
                          )

    def test_upgrade_to_schema_v3(self):
        # Schema from r3047 - 13-Jan-2008 for announcer-0.2 by Stephen Hansen.
        schema = [
            Table('subscriptions', key='id')[
                Column('id', auto_increment=True),
                Column('sid'),
                Column('authenticated', type='int'),
                Column('enabled', type='int'),
                Column('managed'),
                Column('realm'),
                Column('category'),
                Column('rule'),
                Column('transport'),
                Index(['id']),
                Index(['realm', 'category', 'enabled']),
            ]
        ]
        self._schema_init(schema)

        # Populate tables with test data.
        with self.env.db_transaction as db:
            cursor = db.cursor()
            cursor.executemany("""
                INSERT INTO session_attribute
                       (sid,authenticated,name,value)
                VALUES (%s,1,%s,%s)
            """, (('user', 'announcer_email_format_ticket', 'text/html'),
                  ('user', 'announcer_email_format_wiki', 'text/plain'),
                  ('user', 'announcer_specified_email', '')))
            cursor.executemany("""
                INSERT INTO subscriptions
                       (sid,authenticated,enabled,managed,
                        realm,category,rule,transport)
                VALUES (%s,%s,1,%s,%s,%s,%s,%s)
            """, (('user', 1, 'watcher', 'ticket', 'changed', '1', 'email'),
                  ('user', 1, 'watcher', 'wiki', '*', 'WikiStart', 'email')))

        self.assertEquals(2, self.an_sys.get_schema_version())
        target = 3
        db_default.schema_version = target
        self.assertTrue(self.an_sys.environment_needs_upgrade())

        # From r9116 - 25-Sep-2010 for announcer-0.12.1 by Robert Corsaro.
        # + table 'subscription', 'subscription_attribute'
        self.an_sys.upgrade_environment()

        self.assertEquals(target, self.an_sys.get_schema_version())

    def test_upgrade_to_schema_v4(self):
        # Schema from r9116 - 25-Sep-2010 for announcer-0.12.1 by R. Corsaro.
        schema = [
            Table('subscriptions', key='id')[
                Column('id', auto_increment=True),
                Column('sid'),
                Column('authenticated', type='int'),
                Column('enabled', type='int'),
                Column('managed'),
                Column('realm'),
                Column('category'),
                Column('rule'),
                Column('transport'),
                Index(['id']),
                Index(['realm', 'category', 'enabled']),
            ],
            Table('subscription', key='id')[
                Column('id', auto_increment=True),
                Column('time', type='int64'),
                Column('changetime', type='int64'),
                Column('class'),
                Column('sid'),
                Column('authenticated', type='int'),
                Column('distributor'),
                Column('format'),
                Column('priority'),
                Column('adverb')
            ],
            Table('subscription_attribute', key='id')[
                Column('id', auto_increment=True),
                Column('sid'),
                Column('class'),
                Column('name'),
                Column('value')
            ]
        ]
        self._schema_init(schema)

        # Populate tables with test data.
        with self.env.db_transaction as db:
            cursor = db.cursor()
            cursor.execute("""
                INSERT INTO subscription
                       (time,changetime,class,sid,authenticated,
                        distributor,format,priority,adverb)
                VALUES ('0','0','GeneralWikiSubscriber','user','1',
                        'email','text/plain','1','always')
            """)
            cursor.executemany("""
                INSERT INTO subscription_attribute
                       (sid,class,name,value)
                VALUES (%s,%s,%s,%s)
            """, (('somebody', 'GeneralWikiSubscriber', 'wiki', '*'),
                  ('somebody', 'UserChangeSubscriber', 'wiki', 'created'),
                  ('user', 'GeneralWikiSubscriber', 'wiki', 'TracWiki')))

        self.assertEquals(3, self.an_sys.get_schema_version())
        target = 4
        db_default.schema_version = target
        self.assertTrue(self.an_sys.environment_needs_upgrade())

        # From r9210 - 29-Sep-2010 for announcer-0.12.1 by Robert Corsaro.
        # - table 'subscriptions'
        # 'subscription.priority' type=(default == char) --> 'int'
        # 'subscription_attribute.name --> 'subscription_attribute.realm'
        # 'subscription_attribute.value --> 'subscription_attribute.target'
        self.an_sys.upgrade_environment()

        self.assertEquals(target, self.an_sys.get_schema_version())
        # Check type of priority value.
        with self.env.db_query as db:
            cursor = db.cursor()
            cursor.execute("SELECT priority FROM subscription")
            for priority in cursor:
                # Shouldn't raise an TypeError with appropriate column type.
                result = priority[0] + 0

    def test_upgrade_to_schema_v5(self):
        # Schema from r9210 - 29-Sep-2010 for announcer-0.12.1 by R. Corsaro.
        schema = [
            Table('subscription', key='id')[
                Column('id', auto_increment=True),
                Column('time', type='int64'),
                Column('changetime', type='int64'),
                Column('class'),
                Column('sid'),
                Column('authenticated', type='int'),
                Column('distributor'),
                Column('format'),
                Column('priority', type='int'),
                Column('adverb')
            ],
            Table('subscription_attribute', key='id')[
                Column('id', auto_increment=True),
                Column('sid'),
                Column('class'),
                Column('realm'),
                Column('target')
            ]
        ]
        self._schema_init(schema)

        # Populate tables with test data.
        with self.env.db_transaction as db:
            cursor = db.cursor()
            cursor.executemany("""
                INSERT INTO session
                       (sid,authenticated,last_visit)
                VALUES (%s,%s,%s)
            """, (('somebody', '0', '0'), ('user', '1', '0')))
            cursor.executemany("""
                INSERT INTO subscription_attribute
                       (sid,class,realm,target)
                VALUES (%s,%s,%s,%s)
            """, (('somebody', 'GeneralWikiSubscriber', 'wiki', '*'),
                  ('somebody', 'UserChangeSubscriber', 'wiki', 'created'),
                  ('user', 'GeneralWikiSubscriber', 'wiki', 'TracWiki')))

        self.assertEquals(4, self.an_sys.get_schema_version())
        target = 5
        db_default.schema_version = target
        self.assertTrue(self.an_sys.environment_needs_upgrade())

        # From r9235 - 01-Oct-2010 for announcer-0.12.1 by Robert Corsaro.
        # + 'subscription_attribute.authenticated'
        self.an_sys.upgrade_environment()

        self.assertEquals(target, self.an_sys.get_schema_version())
        self._verify_version_unregistered()
        with self.env.db_query as db:
            cursor = db.cursor()
            cursor.execute("SELECT * FROM subscription_attribute")
            columns = [col[0] for col in cursor.cursor.description]
        self.assertTrue('name' not in columns)
        self.assertTrue('value' not in columns)
        self.assertEquals(
            ['id', 'sid', 'authenticated', 'class', 'realm', 'target'],
            columns
        )
        # Check authenticated attribute for session IDs.
        subscriptions = [(row[1], (row[2])) for row in cursor]
        for sub in subscriptions:
            self.assertTrue((sub[0] == 'user' and sub[1] == 1) or sub[1] == 0)

    def test_upgrade_to_schema_v6(self):
        # Check data migration and registration of unversioned schema.

        # Table definitions are identical to current schema here, see
        # schema from r9235 - 01-Oct-2010 for announcer-0.12.1 by R. Corsaro.
        self._schema_init(db_default.schema)

        # Populate table with test data.
        with self.env.db_transaction as db:
            cursor = db.cursor()
            if self.env.config.get('trac', 'database').startswith('sqlite'):
                # Add dataset with CURRENT_TIMESTAMP strings.
                cursor.execute("""
                    INSERT INTO subscription
                           (time,changetime,
                            class,sid,authenticated,
                            distributor,format,priority,adverb)
                    VALUES ('1970-01-01 00:00:00','2012-10-31 23:59:59',
                            'GeneralWikiSubscriber','user','1',
                            'email','text/plain','1','always')
                """)
            else:
                cursor.execute("""
                    INSERT INTO subscription
                           (time,changetime,
                            class,sid,authenticated,
                            distributor,format,priority,adverb)
                    VALUES ('0','1351724399',
                            'GeneralWikiSubscriber','user','1',
                            'email','text/plain','1','always')
                """)
            cursor.execute("""
                INSERT INTO subscription_attribute
                       (sid,authenticated,class,realm,target)
                VALUES ('user','1','GeneralWikiSubscriber','wiki', 'TracWiki')
            """)
            self.assertEquals(5, self.an_sys.get_schema_version())
            target = 6
            db_default.schema_version = target
            self.assertTrue(self.an_sys.environment_needs_upgrade())

            # Data migration and registration of unversioned schema.
            self.an_sys.upgrade_environment()

            self._verify_curr_schema()
            cursor.execute("SELECT time,changetime FROM subscription")
            for time in cursor:
                # Shouldn't raise an TypeError with proper int/long values.
                check = time[1] - time[0]
예제 #2
0
class AnnouncementSystemSetupTestCase(unittest.TestCase):
    def setUp(self):
        self.env = EnvironmentStub(enable=['trac.*'])
        self.env.path = tempfile.mkdtemp()
        self.db_mgr = DatabaseManager(self.env)
        self.db = self.env.get_db_cnx()
        self.an_sys = AnnouncementSystem(self.env)

    def tearDown(self):
        self.db.close()
        # Really close db connections.
        self.env.shutdown()
        shutil.rmtree(self.env.path)

    # Helpers

    def _get_cursor_description(self, cursor):
        # Cursors don't look the same across Trac versions
        if trac_version < '0.12':
            return cursor.description
        else:
            return cursor.cursor.description

    def _schema_init(self, schema=None):
        # Current announcer schema is setup with enabled component anyway.
        #   Revert these changes for clean install testing.
        cursor = self.db.cursor()
        cursor.execute("DROP TABLE IF EXISTS subscriptions")
        cursor.execute("DROP TABLE IF EXISTS subscription")
        cursor.execute("DROP TABLE IF EXISTS subscription_attribute")
        cursor.execute("DELETE FROM system WHERE name='announcer_version'")

        if schema:
            connector = self.db_mgr._get_connector()[0]
            for table in schema:
                for stmt in connector.to_sql(table):
                    cursor.execute(stmt)

    def _verify_curr_schema(self):
        self.assertFalse(self.an_sys.environment_needs_upgrade(self.db))
        cursor = self.db.cursor()
        cursor.execute("SELECT * FROM subscription_attribute")
        columns = [col[0] for col in self._get_cursor_description(cursor)]
        self.assertTrue('name' not in columns)
        self.assertTrue('value' not in columns)
        self.assertEquals(
            ['id', 'sid', 'authenticated', 'class', 'realm', 'target'],
            columns)
        cursor.execute("""
            SELECT value
              FROM system
             WHERE name='announcer_version'
        """)
        version = int(cursor.fetchone()[0])
        self.assertEquals(db_default.schema_version, version)

    def _verify_version_unregistered(self):
        cursor = self.db.cursor()
        cursor.execute("""
            SELECT value
              FROM system
             WHERE name='announcer_version'
        """)
        self.assertFalse(cursor.fetchone())

    # Tests

    def test_new_install(self):
        # Just do db table clean-up.
        self._schema_init()

        self.assertEquals(0, self.an_sys.get_schema_version(self.db))
        self.assertTrue(self.an_sys.environment_needs_upgrade(self.db))

        self.an_sys.upgrade_environment(self.db)
        self._verify_curr_schema()

    def test_upgrade_v1_to_current(self):
        # The initial db schema from r3015 - 10-Jan-2008 by Stephen Hansen.
        schema = [
            Table('subscriptions',
                  key='id')[Column('id', auto_increment=True),
                            Column('sid'),
                            Column('enabled', type='int'),
                            Column('managed', type='int'),
                            Column('realm'),
                            Column('category'),
                            Column('rule'),
                            Column('destination'),
                            Column('format'),
                            Index(['id']),
                            Index(['realm', 'category', 'enabled']), ]
        ]
        self._schema_init(schema)

        # Populate tables with test data.
        cursor = self.db.cursor()
        cursor.executemany(
            """
            INSERT INTO session
                   (sid,authenticated,last_visit)
            VALUES (%s,%s,%s)
        """, (('somebody', '0', '0'), ('user', '1', '0')))
        cursor.executemany(
            """
            INSERT INTO session_attribute
                   (sid,authenticated,name,value)
            VALUES (%s,1,%s,%s)
        """, (('user', 'announcer_email_format_ticket', 'text/html'),
              ('user', 'announcer_specified_email', '')))
        cursor.executemany(
            """
            INSERT INTO subscriptions
                   (sid,enabled,managed,
                    realm,category,rule,destination,format)
            VALUES (%s,%s,0,%s,%s,%s,%s,%s)
        """, (('somebody', 1, 'ticket', 'changed', '1', '1', 'email'),
              ('user', 1, 'ticket', 'attachment added', '1', '1', 'email')))

        self.assertEquals(1, self.an_sys.get_schema_version(self.db))
        target = 6
        db_default.schema_version = target
        self.assertTrue(self.an_sys.environment_needs_upgrade(self.db))

        self.an_sys.upgrade_environment(self.db)
        self._verify_curr_schema()

    def test_upgrade_to_schema_v2(self):
        # The initial db schema from r3015 - 10-Jan-2008 by Stephen Hansen.
        schema = [
            Table('subscriptions',
                  key='id')[Column('id', auto_increment=True),
                            Column('sid'),
                            Column('enabled', type='int'),
                            Column('managed', type='int'),
                            Column('realm'),
                            Column('category'),
                            Column('rule'),
                            Column('destination'),
                            Column('format'),
                            Index(['id']),
                            Index(['realm', 'category', 'enabled']), ]
        ]
        self._schema_init(schema)

        # Populate tables with test data.
        cursor = self.db.cursor()
        cursor.executemany(
            """
            INSERT INTO session
                   (sid,authenticated,last_visit)
            VALUES (%s,%s,%s)
        """, (('somebody', '0', '0'), ('user', '1', '0')))
        cursor.executemany(
            """
            INSERT INTO session_attribute
                   (sid,authenticated,name,value)
            VALUES (%s,1,%s,%s)
        """, (('user', 'announcer_email_format_ticket', 'text/html'),
              ('user', 'announcer_specified_email', '')))
        cursor.executemany(
            """
            INSERT INTO subscriptions
                   (sid,enabled,managed,
                    realm,category,rule,destination,format)
            VALUES (%s,%s,0,%s,%s,%s,%s,%s)
        """, (('somebody', 1, 'ticket', 'changed', '1', '1', 'email'),
              ('user', 1, 'ticket', 'attachment added', '1', '1', 'email')))

        self.assertEquals(1, self.an_sys.get_schema_version(self.db))
        target = 2
        db_default.schema_version = target
        self.assertTrue(self.an_sys.environment_needs_upgrade(self.db))

        # Change from r3047 - 13-Jan-2008 for announcer-0.2 by Stephen Hansen.
        # - 'subscriptions.destination', 'subscriptions.format'
        # + 'subscriptions.authenticated', 'subscriptions.transport'
        # 'subscriptions.managed' type='int' --> (default == char)
        self.an_sys.upgrade_environment(self.db)

        self.assertEquals(target, self.an_sys.get_schema_version(self.db))
        self._verify_version_unregistered()
        cursor = self.db.cursor()
        cursor.execute("SELECT * FROM subscriptions")
        columns = [col[0] for col in self._get_cursor_description(cursor)]
        self.assertEquals([
            'id', 'sid', 'authenticated', 'enabled', 'managed', 'realm',
            'category', 'rule', 'transport'
        ], columns)

    def test_upgrade_to_schema_v3(self):
        # Schema from r3047 - 13-Jan-2008 for announcer-0.2 by Stephen Hansen.
        schema = [
            Table('subscriptions',
                  key='id')[Column('id', auto_increment=True),
                            Column('sid'),
                            Column('authenticated', type='int'),
                            Column('enabled', type='int'),
                            Column('managed'),
                            Column('realm'),
                            Column('category'),
                            Column('rule'),
                            Column('transport'),
                            Index(['id']),
                            Index(['realm', 'category', 'enabled']), ]
        ]
        self._schema_init(schema)

        # Populate tables with test data.
        cursor = self.db.cursor()
        cursor.executemany(
            """
            INSERT INTO session_attribute
                   (sid,authenticated,name,value)
            VALUES (%s,1,%s,%s)
        """, (('user', 'announcer_email_format_ticket', 'text/html'),
              ('user', 'announcer_email_format_wiki', 'text/plain'),
              ('user', 'announcer_specified_email', '')))
        cursor.executemany(
            """
            INSERT INTO subscriptions
                   (sid,authenticated,enabled,managed,
                    realm,category,rule,transport)
            VALUES (%s,%s,1,%s,%s,%s,%s,%s)
        """, (('user', 1, 'watcher', 'ticket', 'changed', '1', 'email'),
              ('user', 1, 'watcher', 'wiki', '*', 'WikiStart', 'email')))

        self.assertEquals(2, self.an_sys.get_schema_version(self.db))
        target = 3
        db_default.schema_version = target
        self.assertTrue(self.an_sys.environment_needs_upgrade(self.db))

        # From r9116 - 25-Sep-2010 for announcer-0.12.1 by Robert Corsaro.
        # + table 'subscription', 'subscription_attribute'
        self.an_sys.upgrade_environment(self.db)

        self.assertEquals(target, self.an_sys.get_schema_version(self.db))

    def test_upgrade_to_schema_v4(self):
        # Schema from r9116 - 25-Sep-2010 for announcer-0.12.1 by R. Corsaro.
        schema = [
            Table('subscriptions',
                  key='id')[Column('id', auto_increment=True),
                            Column('sid'),
                            Column('authenticated', type='int'),
                            Column('enabled', type='int'),
                            Column('managed'),
                            Column('realm'),
                            Column('category'),
                            Column('rule'),
                            Column('transport'),
                            Index(['id']),
                            Index(['realm', 'category', 'enabled']), ],
            Table('subscription',
                  key='id')[Column('id', auto_increment=True),
                            Column('time', type='int64'),
                            Column('changetime', type='int64'),
                            Column('class'),
                            Column('sid'),
                            Column('authenticated', type='int'),
                            Column('distributor'),
                            Column('format'),
                            Column('priority'),
                            Column('adverb')],
            Table('subscription_attribute',
                  key='id')[Column('id', auto_increment=True),
                            Column('sid'),
                            Column('class'),
                            Column('name'),
                            Column('value')]
        ]
        self._schema_init(schema)

        # Populate tables with test data.
        cursor = self.db.cursor()
        cursor.execute("""
            INSERT INTO subscription
                   (time,changetime,class,sid,authenticated,
                    distributor,format,priority,adverb)
            VALUES ('0','0','GeneralWikiSubscriber','user','1',
                    'email','text/plain','1','always')
        """)
        cursor.executemany(
            """
            INSERT INTO subscription_attribute
                   (sid,class,name,value)
            VALUES (%s,%s,%s,%s)
        """, (('somebody', 'GeneralWikiSubscriber', 'wiki', '*'),
              ('somebody', 'UserChangeSubscriber', 'wiki', 'created'),
              ('user', 'GeneralWikiSubscriber', 'wiki', 'TracWiki')))

        self.assertEquals(3, self.an_sys.get_schema_version(self.db))
        target = 4
        db_default.schema_version = target
        self.assertTrue(self.an_sys.environment_needs_upgrade(self.db))

        # From r9210 - 29-Sep-2010 for announcer-0.12.1 by Robert Corsaro.
        # - table 'subscriptions'
        # 'subscription.priority' type=(default == char) --> 'int'
        # 'subscription_attribute.name --> 'subscription_attribute.realm'
        # 'subscription_attribute.value --> 'subscription_attribute.target'
        self.an_sys.upgrade_environment(self.db)

        self.assertEquals(target, self.an_sys.get_schema_version(self.db))
        # Check type of priority value.
        cursor = self.db.cursor()
        cursor.execute("SELECT priority FROM subscription")
        for priority in cursor:
            # Shouldn't raise an TypeError with appropriate column type.
            result = priority[0] + 0

    def test_upgrade_to_schema_v5(self):
        # Schema from r9210 - 29-Sep-2010 for announcer-0.12.1 by R. Corsaro.
        schema = [
            Table('subscription',
                  key='id')[Column('id', auto_increment=True),
                            Column('time', type='int64'),
                            Column('changetime', type='int64'),
                            Column('class'),
                            Column('sid'),
                            Column('authenticated', type='int'),
                            Column('distributor'),
                            Column('format'),
                            Column('priority', type='int'),
                            Column('adverb')],
            Table('subscription_attribute',
                  key='id')[Column('id', auto_increment=True),
                            Column('sid'),
                            Column('class'),
                            Column('realm'),
                            Column('target')]
        ]
        self._schema_init(schema)

        # Populate tables with test data.
        cursor = self.db.cursor()
        cursor.executemany(
            """
            INSERT INTO session
                   (sid,authenticated,last_visit)
            VALUES (%s,%s,%s)
        """, (('somebody', '0', '0'), ('user', '1', '0')))
        cursor.executemany(
            """
            INSERT INTO subscription_attribute
                   (sid,class,realm,target)
            VALUES (%s,%s,%s,%s)
        """, (('somebody', 'GeneralWikiSubscriber', 'wiki', '*'),
              ('somebody', 'UserChangeSubscriber', 'wiki', 'created'),
              ('user', 'GeneralWikiSubscriber', 'wiki', 'TracWiki')))

        self.assertEquals(4, self.an_sys.get_schema_version(self.db))
        target = 5
        db_default.schema_version = target
        self.assertTrue(self.an_sys.environment_needs_upgrade(self.db))

        # From r9235 - 01-Oct-2010 for announcer-0.12.1 by Robert Corsaro.
        # + 'subscription_attribute.authenticated'
        self.an_sys.upgrade_environment(self.db)

        self.assertEquals(target, self.an_sys.get_schema_version(self.db))
        self._verify_version_unregistered()
        cursor = self.db.cursor()
        cursor.execute("SELECT * FROM subscription_attribute")
        columns = [col[0] for col in self._get_cursor_description(cursor)]
        self.assertTrue('name' not in columns)
        self.assertTrue('value' not in columns)
        self.assertEquals(
            ['id', 'sid', 'authenticated', 'class', 'realm', 'target'],
            columns)
        # Check authenticated attribute for session IDs.
        subscriptions = [(row[1], (row[2])) for row in cursor]
        for sub in subscriptions:
            self.assertTrue((sub[0] == 'user' and sub[1] == 1) or sub[1] == 0)

    def test_upgrade_to_schema_v6(self):
        # Check data migration and registration of unversioned schema.

        # Table definitions are identical to current schema here, see
        # schema from r9235 - 01-Oct-2010 for announcer-0.12.1 by R. Corsaro.
        self._schema_init(db_default.schema)

        # Populate table with test data.
        cursor = self.db.cursor()
        if self.env.config.get('trac', 'database').startswith('sqlite'):
            # Add dataset with CURRENT_TIMESTAMP strings.
            cursor.execute("""
                INSERT INTO subscription
                       (time,changetime,
                        class,sid,authenticated,
                        distributor,format,priority,adverb)
                VALUES ('1970-01-01 00:00:00','2012-10-31 23:59:59',
                        'GeneralWikiSubscriber','user','1',
                        'email','text/plain','1','always')
            """)
        else:
            cursor.execute("""
                INSERT INTO subscription
                       (time,changetime,
                        class,sid,authenticated,
                        distributor,format,priority,adverb)
                VALUES ('0','1351724399',
                        'GeneralWikiSubscriber','user','1',
                        'email','text/plain','1','always')
            """)
        cursor.execute("""
            INSERT INTO subscription_attribute
                   (sid,authenticated,class,realm,target)
            VALUES ('user','1','GeneralWikiSubscriber','wiki', 'TracWiki')
        """)
        self.assertEquals(5, self.an_sys.get_schema_version(self.db))
        target = 6
        db_default.schema_version = target
        self.assertTrue(self.an_sys.environment_needs_upgrade(self.db))

        # Data migration and registration of unversioned schema.
        self.an_sys.upgrade_environment(self.db)

        self._verify_curr_schema()
        cursor.execute("SELECT time,changetime FROM subscription")
        for time in cursor:
            # Shouldn't raise an TypeError with proper int/long values.
            check = time[1] - time[0]