def test_cssModuleRoot(self):
        theCSSModuleRoot = url.URL.fromString('/test_cssModuleRoot')
        page = athena.LivePage(
            cssModuleRoot=theCSSModuleRoot)
        self.assertEqual(
            page.getCSSModuleURL(u'X.Y'),
            theCSSModuleRoot.child('X.Y'))
L{athena.LivePage}'s C{cssModuleRoot} argument should be observed by
dataset/ETHPy150Open twisted/nevow/nevow/test/test_athena.py/LivePageTests.test_cssModuleRoot