def collector():
    """TestSuite replacement entry point. Use anywhere you might use a
    unittest.TestSuite. The collector will, by default, load options from
    all config files and execute loader.loadTestsFromNames() on the
    configured testNames, or '.' if no testNames are configured.
    """
    # plugins that implement any of these methods are disabled, since
    # we don't control the test runner and won't be able to run them
    # finalize() is also not called, but plugins that use it aren't disabled,
    # because capture needs it.
    setuptools_incompat = ('report', 'prepareTest',
                           'prepareTestLoader', 'prepareTestRunner',
                           'setOutputStream')

    plugins = RestrictedPluginManager(exclude=setuptools_incompat)
    conf = Config(files=all_config_files(),
                  plugins=plugins)
    conf.configure(argv=['collector'])
    loader = defaultTestLoader(conf)

    if conf.testNames:
        suite = loader.loadTestsFromNames(conf.testNames)
    else:
        suite = loader.loadTestsFromNames(('.',))
    return FinalizingSuiteWrapper(suite, plugins.finalize)