public static PsiMethodCallExpressionExtractor createExpressionExtractor(
     CodeInsightTestFixture fixture) {
   Caret currentCaret = getCaret(fixture);
   return ExtractorFactory.createMethodCallExpressionExtractor(
       fixture.getFile(), currentCaret.getSelectionStart(), currentCaret.getSelectionEnd());
 }
 public static PsiStatementExtractor createStatementExtractor(JavaCodeInsightTestFixture fixture) {
   Caret currentCaret = getCaret(fixture);
   return ExtractorFactory.createStatementExtractor(
       fixture.getFile(), currentCaret.getSelectionStart(), currentCaret.getSelectionEnd());
 }