mockNode.expects(atLeastOnce()).method("getAbsoluteY1")
.will(returnValue(y));
mockNode.expects(atLeastOnce()).method("getSize")
.will(returnValue(new DoubleDimension(width, height)));
mockNode.expects(once()).method("addNodeChangeListener");
selection = new NodeSelection((DiagramOperations) mockOperations.proxy(),
(Node) mockNode.proxy());
}