paneInstance.setFormat(testPane);
TestDeviceLayoutContext deviceLayoutContext =
new TestDeviceLayoutContext();
deviceLayoutContext.setFormatInstance(testPane,
NDimensionalIndex.ZERO_DIMENSIONS, paneInstance);
pageContext.pushDeviceLayoutContext(deviceLayoutContext);
pageContext.setFormatInstance(paneInstance);
MenuModelBuilder menuModelBuilder = pageContext.getMenuBuilder();
//builder#startMenuGroup will fail unless this has been called
menuModelBuilder.startMenu();