ExpandedListTest.java 文件源码

@Test
public void testListPermutation() {
    SortedList<List<String>> observableList = FXCollections
            .<List<String>> observableArrayList(Arrays.asList("11"), Arrays.asList("21", "22"), Arrays.asList())
            .sorted(Comparator.comparing(List::size));
    ExpandedList<String, List<String>> expandedList = new ExpandedList<>(observableList, Function.identity());
    List<String> actual = new ArrayList<>();

    Bindings.bindContent(actual, expandedList);

    assertEquals(3, expandedList.size());
    assertEquals("11", expandedList.get(0));
    assertEquals("21", expandedList.get(1));
    assertEquals("22", expandedList.get(2));

    assertEquals(3, actual.size());
    assertEquals("11", actual.get(0));
    assertEquals("21", actual.get(1));
    assertEquals("22", actual.get(2));

    observableList.comparatorProperty().set(Comparator.comparing(o -> ((List<String>) o).size()).reversed());

    assertEquals(3, expandedList.size());
    assertEquals("21", expandedList.get(0));
    assertEquals("22", expandedList.get(1));
    assertEquals("11", expandedList.get(2));

    assertEquals(3, actual.size());
    assertEquals("21", actual.get(0));
    assertEquals("22", actual.get(1));
    assertEquals("11", actual.get(2));
}