void (final String tagName) { myFixture.configureByFiles(getTestName(true) + ".fxml"); final IntentionAction singleIntention = myFixture.findSingleIntention(getHint(tagName)); assertNotNull(singleIntention); myFixture.launchAction(singleIntention); myFixture.checkResultByFile(getTestName(true) + "_after.fxml"); }