public void testValueInArgumentReplacement() throws Exception {
   parseAndRun("@def X f(BAR);");
   assertTrue(getFirstActualNode() instanceof CssDefinitionNode);
   CssDefinitionNode definition = (CssDefinitionNode) getFirstActualNode();
   assertEquals(1, definition.getChildren().size());
   assertEquals("f(7)", definition.getChildAt(0).toString());
 }