2

我一直在从事一个包含许多 UI 组件的项目。由于所有组件都基于 MVC 模式，因此它们被构造为一个组件——公共接口和工厂，封装受保护的模型/视图/控制器。

“手动”测试它们 - 使用模拟技术太困难且耗时。

所以我加入了 Fest 框架 - http://fest.easytesting.org/。这很简单，很好并且可以完成工作。

当我尝试同时使用 JMockit - http://code.google.com/p/jmockit/和 Fest 时出现问题。我注意到 Fest 使用了一些可能与 JMockit 冲突的库——反射和断言。

当我运行测试时，JMockit 不会模拟所需的类。我以前使用过 JMockit，所以我很确定这是库之间的某种冲突。模拟类上没有生成 $Proxy$，当然，该类行为不端。

需要模拟，因为我必须测试完整的组件交互！

版本：

JMockit：0.999.8

巨星：

Fest-swing 1.2.1 Fest-assert 1.4 Fest-util 1.1.6 Fest-reflect 1.2

我无意通过查看两个库来寻找冲突，所以任何帮助都会很感激。

谢谢。

更新：

测试/示例代码在这里：

public interface SimpleControllable {
    void init();

    JPanel getPanel();
}

public class SimpleController implements SimpleControllable {

    private final SimpleForm simpleForm;
    private final SimpleModel simpleModel;

    public SimpleController(
            final SimpleForm simpleForm,
            final SimpleModel simpleModel
    ) {
        this.simpleForm = simpleForm;
        this.simpleModel = simpleModel;
    }

    @Override
    public void init() {
        simpleForm.init();

        //This works!
        /*simpleForm.getTestButton().addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                simpleForm.getTestButton().setText(simpleModel.getSimpleValue());
            }
        });*/

        //This doesn't!
        simpleForm.getTestButton().setText(simpleModel.getSimpleValue());
    }

    @Override
    public JPanel getPanel() {
        return simpleForm.getTestPanel();
    }
}


public class SimpleModel {

    private final SimpleServable simpleServable;

    public SimpleModel(final SimpleServable simpleServable) {
        this.simpleServable = simpleServable;
    }

    public String getSimpleValue() {
        return simpleServable.getValue();
    }
}

public interface SimpleServable {
    String getValue();
}

public class SimpleService implements SimpleServable {

    private String value;

    @Override
    public String getValue() {
        return value;
    }
}

public class SimpleForm {
    private JButton testButton;
    private JPanel testPanel;

    public void init() {
        testPanel.setName("testPanel");
        testButton.setName("testButton");
    }

    public JButton getTestButton() {
        return testButton;
    }

    public JPanel getTestPanel() {
        return testPanel;
    }
}

public class SimpleTest extends FestSwingJUnitTestCase {

    @Mocked
    private SimpleService simpleServable;

    private FrameFixture window;

    @Override
    protected void onSetUp() {
        FailOnThreadViolationRepaintManager.install();

        JFrame frameUi = GuiActionRunner.execute(new GuiQuery<JFrame>() {
            protected JFrame executeInEDT() {

                SimpleControllable simpleControllable = getSimpleControllable();

                JFrame frame = new JFrame("TEST");

                frame.add(simpleControllable.getPanel());
                frame.setVisible(true);
                frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
                frame.pack();

                return frame;
            }
        });


        robot().settings().delayBetweenEvents(1000);

        // IMPORTANT: note the call to 'robot()'
        // we must use the Robot from FestSwingTestngTestCase

        window = new FrameFixture(robot(), frameUi);
        window.show(); // shows the frameU
    }

    //Should use factory, but not neccesary for test purposes...
    private SimpleControllable getSimpleControllable() {
        SimpleForm simpleForm = new SimpleForm();

        //SimpleServable simpleServable = new SimpleService();
        SimpleModel simpleModel = new SimpleModel(simpleServable);

        SimpleControllable simpleControllable = new SimpleController(
                simpleForm,
                simpleModel
        );

        //Initialize the component, therein lies the problem...
        simpleControllable.init();

        return simpleControllable;
    }

    @Test
    public void test() throws Exception {
        //Before
        new Expectations() {
            {
                simpleServable.getValue();
                result = "TEST";
            }
        };

        //When

        //This works!
//        window.panel("testPanel").button("testButton").click().requireText("TEST");

        //This doesn't!
        window.panel("testPanel").button("testButton").requireText("TEST");

        //Then
    }
}

看来我太早归咎于框架了。但我仍然不明白为什么它不起作用的细节。类Service被嘲笑，它应该仍然可以使用，即使在延迟了期望之后。我了解时间问题（组件的初始化），但不知道如何“解决”这个问题。

谢谢。

更新2：

谢谢，罗杰里奥。您可以使用 FEST 测试组件，但它并没有真正利用 JMockit，而且有些类有很多方法（是的，我知道 - SRP，但让我们尝试继续走这条路）并且会受益匪浅来自模拟框架，例如 JMockit。我在这里发布问题之前使用了它，因此您可以自己使用它，并了解这不是我想要的方式：

public class SimpleTest extends FestSwingJUnitTestCase {

    //This works, and I used this mechanism before, but this is without the help of JMockit.
    //If you have a lot of methods you want to mock this test turns into chaos.
    public static class MockSimpleServable implements SimpleServable{

        @Override
        public String getValue() {
            return "TEST";
        }
    }

//    @Mocked
//    private SimpleServable simpleServable;

    private FrameFixture window;

    @Override
    protected void onSetUp() {
        FailOnThreadViolationRepaintManager.install();

        JFrame frameUi = GuiActionRunner.execute(new GuiQuery<JFrame>() {
            protected JFrame executeInEDT() {

                SimpleControllable simpleControllable = getSimpleControllable();

                JFrame frame = new JFrame("TEST");

                frame.add(simpleControllable.getPanel());
                frame.setVisible(true);
                frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
                frame.pack();

                return frame;
            }
        });


        robot().settings().delayBetweenEvents(1000);

        // IMPORTANT: note the call to 'robot()'
        // we must use the Robot from FestSwingTestngTestCase

        window = new FrameFixture(robot(), frameUi);
        window.show(); // shows the frameU
    }

    //Should use factory, but not neccesary for test purposes...
    private SimpleControllable getSimpleControllable() {
        SimpleForm simpleForm = new SimpleForm();

        //SimpleServable simpleServable = new SimpleService();
        SimpleServable simpleServable = new MockSimpleServable();
        SimpleModel simpleModel = new SimpleModel(simpleServable);

        SimpleControllable simpleControllable = new SimpleController(
                simpleForm,
                simpleModel
        );

        //Initialize the component, therein lies the problem...
        simpleControllable.init();

        return simpleControllable;
    }

    @Test
    public void test() throws Exception {
        //This works!
//        window.panel("testPanel").button("testButton").click().requireText("TEST");

        //This doesn't!
        window.panel("testPanel").button("testButton").requireText("TEST");
    }
}

问题仍然存在 - 有没有人知道我可以用 JMockit 测试它，不要忘记 EDT 违规。

4

1 回答 1

1

问题出在测试代码中，它恰好SimpleServable#getValue()在窗口构建期间调用，然后在测试中记录对该方法调用的期望。

要解决此问题，只需将new Expectation() {{ ... }}块移至onSetUp()方法，将其放在对GuiActionRunner.execute(GuiQuery).

以下代码的简化版本演示了它：

public final class SimpleForm
{
    final JPanel testPanel;
    final JButton testButton;

    public SimpleForm()
    {
        testPanel = new JPanel();
        testPanel.setName("testPanel");
        testButton = new JButton();
        testButton.setName("testButton");
        testPanel.add(testButton);
    }
}

public final class SimpleService {
    public String getValue() { return null; }
}

public final class SimpleController
{
   private final SimpleForm form;

   public SimpleController()
   {
      form = new SimpleForm();
      SimpleService service = new SimpleService();
      form.testButton.setText(service.getValue());
   }

   public JPanel getPanel() { return form.testPanel; }
}

public final class SimpleTest extends FestSwingJUnitTestCase
{
   FrameFixture window;
   @NonStrict SimpleService service;

   @Override
   protected void onSetUp()
   {
      FailOnThreadViolationRepaintManager.install();

      // Record expectations *before* they are replayed:
      new Expectations() {{ service.getValue(); result = "TEST"; }};

      JFrame frameUi = GuiActionRunner.execute(new GuiQuery<JFrame>() {
         @Override
         protected JFrame executeInEDT()
         {
            SimpleController controller = new SimpleController();

            JFrame frame = new JFrame("TEST");
            frame.add(controller.getPanel());
            frame.setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);
            frame.pack();
            return frame;
         }
      });

      robot().settings().delayBetweenEvents(1000);

      window = new FrameFixture(robot(), frameUi);
      window.show();
   }

   @Test
   public void test()
   {
      // This works provided "service.getValue()" gets called *after* 
      // expectations are recorded. With the call happening during the
      // creation of the window, it must be recorded at the beginning
      // of the "onSetUp" method.
      window.panel("testPanel").button("testButton").requireText("TEST");
   }
}
于 2013-01-24T10:59:11.480 回答