### Question:
TreeDifference { public static TreeDifference create(MutableTree leftTree, MutableTree rightTree) { return new TreeDifference(leftTree, rightTree); } TreeDifference(MutableTree leftTree, MutableTree rightTree); static TreeDifference create(MutableTree leftTree, MutableTree rightTree); MutableTree getLeftTree(); MutableTree getRightTree(); TreeDifference inverse(); SortedMap<NodeRef, NodeRef> findRenames(); SortedSet<NodeRef> findNewTrees(); SortedSet<NodeRef> findDeletes(); SortedMap<NodeRef, NodeRef> findChanges(); Map<NodeRef, NodeRef> findPureMetadataChanges(); boolean areEqual();  }### Answer:
@Test public void testCreate() { assertNotNull(treeDifference); assertSame(leftTree, treeDifference.getLeftTree()); assertSame(rightTree, treeDifference.getRightTree()); }