    @Test
    public void pathUtilTest7() {

        File[] roots = File.listRoots();

        File basePath = new File(roots[0] + "some");
        File relativePath = new File(roots[0] + "some" + File.separatorChar + "dir");

        String path = PathUtil.getRelativeFileInternal(basePath, relativePath);

        Assert.assertEquals(path, "dir");
    }