java - 有没有办法使用 EasyMock 部分模拟一个对象？

Question

例如假设我有这门课:

public class Foo Implements Fooable {
  public void a() {
    // does some stuff
    bar = b();
    // moar coadz
  }
  public Bar b() {
    // blah
  }
  // ...
}

我想测试 Foo.a。我想模拟 Foo.b，因为我正在单独测试该方法。我想象的是这样的:

public class FooTest extends TestCase {
  public void testA() {
    Fooable foo = createPartialMock(
      Fooable.class,  // like with createMock
      Foo  // class where non-mocked method implementations live
    );

    // Foo's implementation of b is not used.
    // Rather, it is replaced with a dummy implementation
    // that records calls that are supposed to be made;
    // and returns a hard coded value (i.e. new Bar()).
    expect(foo.b()).andReturn(new Bar());

    // The rest is the same as with createMock:
    //   1. Stop recording expected calls.
    //   2. Run code under test.
    //   3. Verify that recorded calls were made.
    replay(foo);
    foo.a();
    verify(foo);
  }
}

我知道我可以编写自己的 Foo 子类来为我做这类事情。但如果不是必须的话，我不想这样做，因为这很乏味，即应该自动化。

Answer 1

在 EasyMock 3.0+ 中，您可以使用 mockbuilder 创建 Partial mock

EasyMock.createMockBuilder(class).addMockedMethod("MethodName").createMock();