"}");
refresh();
HorizontalSplitPanelInfo panel = getJavaInfoByName("panel");
//
WidgetInfo newButton = createButton();
panel.command_CREATE(newButton, "left");
assertEditor(
"public class Test extends FlowPanel {",
" public Test() {",
" HorizontalSplitPanel panel = new HorizontalSplitPanel();",
" add(panel);",