GenericBinaryTreeUsage usage = new GenericBinaryTreeUsage();
BinaryTree<String> empty = _EmptyTree();
assertEquals(null, usage.max(empty));
assertEquals("whatever", usage.max(_Node("hello", _Node("goodbye", empty, empty), _Node("whatever", empty, _Node("foo", empty, empty)))));
}
@Test
public void testExampleCration() {
GenericBinaryTreeUsage usage = new GenericBinaryTreeUsage();