    @Test
    public void appendPathRoot() throws Exception {

        assertEquals("A/B", Utils.appendPath("A", "/B"));
        assertEquals("/A/B", Utils.appendPath("/A", "/B"));
        assertEquals("/A/B/C/D", Utils.appendPath("/A/B", "/C/D"));
        assertEquals("/A/B/C/D", Utils.appendPath("/A/B", "/C/D/"));
    }