void () { configureByFile("/codeInsight/commentInCustomFileType/line1.cs"); performLineCommentAction(); checkResultByFile("/codeInsight/commentInCustomFileType/line1_after.cs"); configureByFile("/codeInsight/commentInCustomFileType/line2.cs"); performLineCommentAction(); checkResultByFile("/codeInsight/commentInCustomFileType/line2_after.cs"); }