@Test
public void testListAllShouldListWhenPathIsOneLevelAndStartsWithASlash() throws Exception {

    init();
    // then : path is one level and starts with a "/"
    assertThat(preparationService
            .listAll(null, null, "/prep_name_home", null, null) //
            .collect(Collectors.toList())
            .size(), is(1));
}