descriptors.add("view3");
pageDescriptor.setViewDescriptors(descriptors);
assertSame(descriptors, pageDescriptor.getViewDescriptors());
PageLayoutBuilder mockBuilder = (PageLayoutBuilder) EasyMock.createMock(PageLayoutBuilder.class);
// expectations
mockBuilder.addView("view0");
mockBuilder.addView("view1");
mockBuilder.addView("view2");
mockBuilder.addView("view3");
EasyMock.replay(mockBuilder);
pageDescriptor.buildInitialLayout(mockBuilder);
EasyMock.verify(mockBuilder);