def METHOD_NAME(self):
    len_sys_path = len(sys.path)
    config = textwrap.dedent("""\
            c = BuildmasterConfig = {}
            c['multiMaster'] = True
            c['schedulers'] = []
            from buildbot.config import BuilderConfig
            from buildbot.process.factory import BuildFactory
            c['builders'] = [
                BuilderConfig('testbuilder', factory=BuildFactory(),
                              workername='worker'),
            ]
            from buildbot.worker import Worker
            c['workers'] = [
                Worker('worker', 'pass'),
            ]
            c['protocols'] = {'pb': {'port': 9989}}
            """)
    self.do_test_load(config=config,
                      stdout_re=re.compile('Config file is good!'))
    # (regression) check that sys.path hasn't changed
    self.assertEqual(len(sys.path), len_sys_path)