@Test
public void testSearchForFilesWhenSearchedTextIsEmptyString() throws IOException {

    //GIVEN
    //WHEN
    underTest.searchForFiles("", session);
    //THEN
    verify(luceneEngine).search("");
    verify(fileChecker).checkFilesExistsWithPairs(lucineResult);
    verify(session).setAttribute("searchResult", listOfLists);
}