java easymock：调用模拟时可以调用另一个方法吗？答案

【问题标题】：java easymock: Can I invoke another method when a mock is called?java easymock：调用模拟时可以调用另一个方法吗？
【发布时间】：2019-09-05 07:38:32
【问题描述】：

我想在调用特定的模拟方法时执行一些代码。

mock = EasyMock.createMock(ConListener.class);

// Record n Replay
mock.Connected();
mock.DataSent();
EasyMock.replay(mock);


sock = createCon(addr, mock)

// I want the send to be called only after the mock's Connected() is invoked.
sock.send("data");

有什么方法可以在调用模拟时执行 Invoke 操作？

mock.Connected().Invoke () //something like this?

到目前为止，我所拥有的是，

mock = EasyMock.createMock(ConListener.class);

// Record n Replay
mock.Connected();
mock.DataSent();
EasyMock.replay(mock);

CompletableFuture<Void> connected = new CompletableFuture<Void>();
sock = createCon(addr, new ConListener() {
   public void Connected() {
      mock.Connected();
      connected.complete(null);
   }

   public void DataSent() { mock.DataSent(); }
});
connected.get()
sock.send("data");

想看看有没有更好更干净的方法。

【问题讨论】：

标签： java unit-testing mocking easymock

【解决方案1】：

我找到了addDelegate 来解决我的问题。不是那么清晰和直观，但比我以前的方法略好。

interface ConListener {
   void Connected();
   void DataSent(int size);
}

// Having it as a class, so that I can only add stub codes,
// for a particular method and leave the rest.

class TestListener implements ConListener {
   void Connected() {Assert.fail("")}
   void DataSent(int size) {Assert.fail("")}
}


@Test
public void SomeTest() {
   CompletableFuture<Void> connected = new CompletableFuture<Void>();
   mock = EasyMock.createMock(ConListener.class);

   // Record
   mock.Connected();
   EasyMock.expectLastCall().andDelegateTo(new TestListener() {
      public void Connected() {
        connected.complete(null);
      }
   });
  EasyMock.expectLastCall().times(1); // This cannot come before adding delegates. Why?
  EasyMock.replay(mock);

  // Test
  sock = createCon(addr, mock/*using actual mock*/);
  connected.get(timeout, unit);
  sock.send(blahblah);  

}

【讨论】：