SimpleContainer simpleContainer = new SimpleContainerFactory(layout, true).get().get(0);
// empty initially
assertTrue(simpleContainer.isEmpty());
// add new Button
ComponentInfo newButton = createButton();
assertTrue(simpleContainer.validateComponent(newButton));
simpleContainer.command_CREATE(newButton);
assertEditor(
"public class Test extends LayoutContainer {",
" public Test() {",
" setLayout(new CenterLayout());",