def METHOD_NAME():
    with mock.patch('awx.main.notifications.rocketchat_backend.requests') as requests_mock:
        requests_mock.post.return_value.status_code = 201
        backend = rocketchat_backend.RocketChatBackend(rocketchat_icon_url='http://example.com')
        message = EmailMessage(
            'test subject',
            'test body',
            [],
            [
                'http://example.com',
            ],
        )
        sent_messages = backend.send_messages(
            [
                message,
            ]
        )
        calls = requests_mock.post.call_args_list
        assert len(calls) == 1
        args, kwargs = calls[0]
        assert args[0] == 'http://example.com'
        assert json.loads(kwargs['data'])['text'] == 'test subject'
        assert json.loads(kwargs['data'])['icon_url'] == 'http://example.com'
        assert kwargs['verify'] is True
        assert sent_messages == 1