How to use the zuul.model.Change function in zuul

def test_l10nbot_patchets_are_ignored(self):
        test_manager = self.getPipeline('test').manager
        change = zuul.model.Change('mediawiki/core')
        change.branch = 'master'

        l10n_event = zuul.model.TriggerEvent()
        l10n_event.type = 'patchset-created'
        l10n_event.account = {'email': 'l10n-bot@translatewiki.net'}
        l10n_event.branch = change.branch

        self.assertFalse(test_manager.eventMatches(l10n_event, change),
                         'l10-bot should not enter %s pipeline' %
                         test_manager.pipeline.name)

def test_recheck_comment_trusted_user(self):
        test_manager = self.getPipeline('test').manager

        change = zuul.model.Change('mediawiki/core')
        change.branch = 'master'

        event = zuul.model.TriggerEvent()
        event.type = 'comment-added'
        event.comment = 'Patch Set 1:\n\nrecheck'
        event.account = {'email': 'jdoe@wikimedia.org'}
        event.branch = change.branch

        self.assertTrue(test_manager.eventMatches(event, change))

def test_no_post_on_ref_tag_update(self):
        manager = self.getPipeline('post').manager

        change = zuul.model.Change('mediawiki/core')

        event = zuul.model.TriggerEvent()
        event.type = 'ref-updated'
        event.ref = 'refs/tags/wmf/1.29.0-wmf.20'

        self.assertFalse(manager.eventMatches(event, change))

def test_gated_extension_run_tests_on_feature_branch(self):
        repo = 'mediawiki/extensions/CirrusSearch'
        release_job = self.getJob(
            repo, 'test',
            'wmf-quibble-vendor-mysql-php72-docker')

        change = zuul.model.Change(repo)

        change.branch = 'es6'
        self.assertTrue(release_job.changeMatches(change))

def test_recheck_with_inline_comment_removed_review(self):
        test_manager = self.getPipeline('test').manager

        change = zuul.model.Change('mediawiki/core')
        change.branch = 'master'

        event = zuul.model.TriggerEvent()
        event.type = 'comment-added'
        event.comment = 'Patch Set 1: -Code-Review\n\n(2 comments)\n\nrecheck'
        event.account = {'email': 'jdoe@wikimedia.org'}
        event.branch = change.branch

        self.assertTrue(test_manager.eventMatches(event, change))

'mediawiki-quibble-composer-mysql-php72-docker': True,
            'mediawiki-quibble-vendor-mysql-php74-docker': True,
            'mediawiki-quibble-vendor-mysql-php73-docker': True,
            'mediawiki-quibble-vendor-mysql-php72-docker': True,
            'mediawiki-quibble-composertest-php72-docker': True,
            'mediawiki-quibble-apitests-vendor-docker': True,
            'mediawiki-quibble-selenium-vendor-docker': True,
            'mediawiki-quibble-vendor-sqlite-php72-docker': True,
            'mediawiki-quibble-vendor-postgres-php72-docker': True,
            'wmf-quibble-vendor-mysql-php72-docker': False,
            'wmf-quibble-selenium-php72-docker': True,
            'wmf-quibble-core-vendor-mysql-php72-docker': True,
            'mwgate-node10-docker': True,
        }

        change = zuul.model.Change('mediawiki/core')
        change.branch = 'master'
        change.files.extend(['foo.php', 'composer.json'])

        job_tree = [t for (p, t) in
                    self.getPipeline('test').job_trees.iteritems()
                    if p.name == 'mediawiki/core'][0]
        test_jobs = job_tree.getJobs()
        job_tree = [t for (p, t) in
                    self.getPipeline('gate-and-submit').job_trees.iteritems()
                    if p.name == 'mediawiki/core'][0]
        gate_jobs = job_tree.getJobs()

        expected_jobs = {
            'test': set(expected_test),
            'gate-and-submit': set(expected_gate),
        }

def test_recheck_with_verified_vote_minus_two(self):
        test_manager = self.getPipeline('test').manager

        change = zuul.model.Change('mediawiki/core')
        change.branch = 'master'

        event = zuul.model.TriggerEvent()
        event.type = 'comment-added'
        event.comment = 'Patch Set 1: Verified-2\n\nrecheck'
        event.account = {'email': 'jdoe@wikimedia.org'}
        event.branch = change.branch

        self.assertFalse(test_manager.eventMatches(event, change))

def test_debian_glue_filtered_for_non_debian_changes(self):
        job = self.getJob('blubber', 'test', 'debian-glue')

        change = zuul.model.Change('blubber')
        change.files.extend(['README'])

        self.assertFalse(job.changeMatches(change))

def test_pipelines_trustiness(self):
        test_manager = self.getPipeline('test').manager
        change = zuul.model.Change('mediawiki/core')
        change.branch = 'master'

        # Untrusted user
        untrusted_event = zuul.model.TriggerEvent()
        untrusted_event.type = 'patchset-created'
        untrusted_event.account = {'email': 'untrusted@example.org'}
        untrusted_event.branch = change.branch
        self.assertFalse(test_manager.eventMatches(untrusted_event, change))

        # Trusted user
        trusted_event = zuul.model.TriggerEvent()
        trusted_event.type = 'patchset-created'
        trusted_event.account = {'email': 'jdoe@wikimedia.org'}
        trusted_event.branch = change.branch
        self.assertTrue(test_manager.eventMatches(trusted_event, change))