message: check if enabled is false. No discard if nothing is selected
diff: @@ -226,7 +226,7 @@ void TestFileContextMenu::testDiscardNothing() {
  }
  }
  QVERIFY(action);
  - action->triggered(true); // TODO: or hiding discard button?
  + QCOMPARE(action->isEnabled(), false);
  // original text
  // {"file.txt", "File.txt\n"},
  