PaneAttributes attributes,
PaneRendering expected)
throws Exception {
TestDOMOutputBuffer dom = new TestDOMOutputBuffer();
dom.openStyledElement(elementName, attributes);
PaneRendering actual = protocol.checkPaneRendering(dom, attributes);
assertEquals("Result shouild match\n" +
"EXPECTED: " + expected + "\n" +
"ACTUAL : " + actual + "\n", expected, actual);