Пример #1
0
  @Test
  public void remove_child() {
    CLTreeNode<String> parentNode = new CLTreeNodeImpl<>("parent");
    parentNode.addChild(new CLTreeNodeImpl<>("child1"));
    parentNode.addChild(new CLTreeNodeImpl<>("child2"));
    parentNode.addChild(new CLTreeNodeImpl<>("child3"));
    parentNode.addChild(new CLTreeNodeImpl<>("not_a_child"));
    parentNode.addChild(new CLTreeNodeImpl<>("again, not a child"));

    assertThat(parentNode.getChildren(c -> true).size(), is(5));
    parentNode.removeChild("child1"::equals);
    parentNode.removeChild("not_a_child"::equals);
    assertThat(parentNode.getChildren(c -> true).size(), is(3));
    List<String> objectsInside =
        parentNode
            .getChildren(c -> true)
            .stream()
            .map(CLTreeNode::lookInside)
            .collect(Collectors.toList());
    assertTrue(objectsInside.contains("child2"));
    assertTrue(objectsInside.contains("child3"));
    assertTrue(objectsInside.contains("again, not a child"));
  }
Пример #2
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  @Test
  public void get_children_respects_predicate() {
    CLTreeNode<String> parentNode = new CLTreeNodeImpl<>("parent");
    parentNode.addChild(new CLTreeNodeImpl<>("child1"));
    parentNode.addChild(new CLTreeNodeImpl<>("child2"));
    parentNode.addChild(new CLTreeNodeImpl<>("child3"));
    parentNode.addChild(new CLTreeNodeImpl<>("not_a_child"));
    parentNode.addChild(new CLTreeNodeImpl<>("again, not a child"));

    List<CLTreeNode<String>> children = parentNode.getChildren(s -> s.startsWith("child"));
    assertThat(children.size(), is(3));
    List<String> objectsInside =
        children.stream().map(CLTreeNode::lookInside).collect(Collectors.toList());
    assertTrue(objectsInside.contains("child1"));
    assertTrue(objectsInside.contains("child2"));
    assertTrue(objectsInside.contains("child3"));
  }
Пример #3
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 @Test(expected = NullPointerException.class)
 public void does_not_allow_null_predicate() {
   CLTreeNode<String> parentNode = new CLTreeNodeImpl<>("node");
   parentNode.addChild(new CLTreeNodeImpl<>("child"));
   parentNode.getChildren(null);
 }
Пример #4
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 @Test
 public void no_children() {
   CLTreeNode<String> parentNode = new CLTreeNodeImpl<>("parent");
   assertThat(parentNode.getChildren(t -> true).size(), is(0));
 }
Пример #5
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 @Test
 public void simple_create_node() {
   CLTreeNode<String> node = new CLTreeNodeImpl<>("test");
   assertThat(node.lookInside(), is(equalTo("test")));
 }