'The I{twisted.test.proto_helpers} module is visible.'

def test_privacyClassProtoHelpers(self):

    sut = TwistedSystem()
    twistedPackage = model.Package(system=sut, name='twisted', docstring='ignored', parent=None)
    twistedTestPackage = model.Package(system=sut, name='test', docstring='ignored', parent=twistedPackage)
    twistedProtoHelpersModule = model.Module(system=sut, name='proto_helpers', docstring='ignored', parent=twistedTestPackage)
    result = sut.privacyClass(twistedProtoHelpersModule)
    self.assertIs(result, model.PrivacyClass.VISIBLE)
