assertTrue(!result.getValue());
b =
getInstance(new AddNode(new ValueNode<>(1), new ValueNode<>(1)),
new AddNode(new ValueNode<>(5), new ValueNode<>(6)));
result = b.calc(null);
assertTrue(!result.getValue());
b =
getInstance(new AddNode(new ValueNode<>(1), new ValueNode<>(1)),
new AddNode(new ValueNode<>(1), new ValueNode<>(1)));