### Question:
DMNGridSubIndex implements DMNSubIndex { @Override public void onNoResultsFound() { dmnGridHelper.clearSelections(); dmnGridHelper.clearCellHighlights(); } @Inject  DMNGridSubIndex(final DMNGridHelper dmnGridHelper); @Override List<DMNSearchableElement> getSearchableElements(); @Override void onSearchClosed(); @Override void onNoResultsFound();  }### Answer:
@Test public void testOnNoResultsFound() { index.onNoResultsFound(); verify(dmnGridHelper).clearSelections(); }