private static <T> void compareAndSetUserObject(
final TypedDefaultMutableTreeNode<T> node, final T oldData, final T newData) {
Preconditions.checkNotNull(node);
Preconditions.checkNotNull(oldData);
Preconditions.checkNotNull(newData);
Assert.assertEquals(node.getUserObject(), oldData);
node.setUserObjectSafely(newData);
}
@Test
public void createTree_singleNode() {
{
final Object nodeObject = new Integer(0);
final TypedDefaultMutableTreeNode<Object> singleNode =
new TypedDefaultMutableTreeNode<>(nodeObject, false);
Assert.assertEquals(singleNode.getUserObject(), nodeObject);
}
{
final Object nodeObject = Lists.newArrayList("1", "2", "3");
final TypedDefaultMutableTreeNode<Object> singleNode =
new TypedDefaultMutableTreeNode<>(nodeObject, false);
Assert.assertEquals(singleNode.getUserObject(), nodeObject);
}
}
@Test
public void builder_forSimpleType() {
// Given(SetUp)
// When(Exercise)
final TypedDefaultMutableTreeNodeBuilder<String> builder =
TypedDefaultMutableTreeNodeBuilder.newBuilder(TypeToken.of(String.class));
final String data1 = "1";
final String data2 = "2";
final TypedDefaultMutableTreeNode<String> node = builder.build(data1);
// Then(Verify)
TypedDefaultMutableTreeNodeTest.compareAndSetUserObject(node, data1, data2);
Assert.assertEquals(node.getUserObject(), data2);
}
@Test
public void createTree_twoLevel() {
final Object rootNodeObject = new Integer(0);
final TypedDefaultMutableTreeNode<Object> rootNode =
new TypedDefaultMutableTreeNode<Object>(rootNodeObject, true);
Assert.assertEquals(rootNode.getUserObject(), rootNodeObject);
final ArrayList<Integer> secondLevelNodeObjects =
Iterables.IntRangeForward(10, 10, 1).ToArrayList();
final ArrayList<TypedDefaultMutableTreeNode<Object>> secondLevelNodes =
Iterables.Map(
secondLevelNodeObjects, obj -> new TypedDefaultMutableTreeNode<Object>(obj, false))
.ToArrayList();
secondLevelNodes.forEach(rootNode::addSafely);
Assert.assertTrue(
Iterables.Zip(secondLevelNodeObjects, secondLevelNodes)
.All(tuple -> tuple.GetItem2().getUserObject() == tuple.GetItem1()));
secondLevelNodes.forEach(child -> Assert.assertEquals(child.getParent(), rootNode));
}