Frame home = assertHasFrame(root, "Home");
// source
InputTextField integer = assertHasInputTextField(home, "Integer");
Value fieldValue = assertHasFieldValue(integer);
ActivityOperation validate = assertHasActivityOperation(integer, "validate");
Label annotation = assertHasLabel(integer, "Warning");
BuiltinOperation show = assertHasBuiltinOperation(annotation, "show");
BuiltinOperation hide = assertHasBuiltinOperation(annotation, "hide");
BuiltinOperation update = assertHasBuiltinOperation(annotation, "update");