### Question:
SubFormWidget extends Composite implements TakesValue<Object>,
                                                        IsNestedModel,
                                                        NeedsFlush { public void render(FormRenderingContext renderingContext) { formRenderer.render(renderingContext); }  void render(FormRenderingContext renderingContext); @Override Object getValue(); @Override void setValue(Object value); @Override void clear(); @Override void flush(); @Override void addFieldChangeHandler(FieldChangeHandler handler); void setReadOnly(boolean readOnly); boolean isValid();  }### Answer:
@Test public void testRender() { subFormWidget.render(context); verify(formRenderer).render(same(context)); }