@Test
public void testExpandPathStart() throws Exception {

    String original = "+Employee department Department";
    String exp1 = "Employee department Department";
    String exp2 = "CEO department Department";
    String exp3 = "Manager department Department";
    Set expected = new LinkedHashSet(Arrays.asList(new Object[] {exp1, exp2, exp3}));
    Assert.assertEquals(expected, QueryGenUtil.expandPath(os, original));
}