def METHOD_NAME(self):
    config = textwrap.dedent("""\
            from othermodule import port
            c = BuildmasterConfig = {}
            c['schedulers'] = []
            c['builders'] = []
            c['workers'] = []
            c['protocols'] = {'pb': {'port': port}}
            """)
    other_files = {'othermodule.py': 'port = 9989'}
    self.do_test_load(config=config, other_files=other_files)