@Test
public void testGetFilePathsShouldReturnWithEmptyListWhenTargetFolderIsEmpty() {

    //GIVEN
    given(fileFactory.createFile(PATH)).willReturn(file);
    given(fileUtils.listFiles(file)).willReturn(new ArrayList<File>());
    //WHEN
    List<String> actual = underTest.getFilePaths(PATH);
    //THEN
    Assert.assertEquals(actual.size(), 0);
}