@Test
public void testCreateZipWithFilesWhenFilePathContainsBackSlashes() throws IOException {

    //GIVEN
    List<String> pair = new ArrayList<String>();
    pair.add(FilenameUtils.separatorsToSystem("src\\test\\resources\\first_testreq.txt"));
    filePaths.add(pair);
    //WHEN
    underTest.createZipWithFiles(filePaths, outputStream);
    //THEN
    verify(entryFactory).createZipEntry("first_testreq.txt");
    verify(zipOutputStream).putNextEntry(zipEntry);
    verify(zipOutputStream).close();
}