@Test
public void testCheckFilesExistsWithPairsWhenThereAreSomeSearchResultButOneRequestDoesntHavePair() {

    //GIVEN
    List<String> list = new ArrayList<>();
    list.add("src/test/resources/first_testreq.txt");
    list.add("src/test/resources/second_testreq.txt");
    List<List<String>> expected = new ArrayList<>();
    List<String> pair = new ArrayList<>();
    pair.add("src/test/resources/first_testreq.txt");
    pair.add("src/test/resources/first_testresp.txt");
    expected.add(pair);
    pair = new ArrayList<>();
    pair.add("src/test/resources/second_testreq.txt");
    pair.add("src/test/resources/second_testresp.txt" + ERROR_POSTFIX);
    expected.add(pair);
    //WHEN
    List<List<String>> result = underTest.checkFilesExistsWithPairs(list);
    //THEN
    Assert.assertEquals(result, expected);
}