@Test
public void testGetFilePathsShouldReturnListWithOneElementWhenTargetFolderContainsOneFile() {

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