public class ATest extends LightCodeInsightFixtureTestCase { public void testDoTestParameters() throws Exception { doTest(); } private void doTest() throws Exception { doTest("java"); } private void doTest(String extension) throws Exception { configureByFile(getTestName(true) + "." + extension); } private void configureByFile(@com.intellij.testFramework.TestDataFile String file) { } private String getTestName(boolean toUpperCase) { return null; } }