问题描述
代替
PowerMockito.doReturn(httpResponse).when(httpClient).execute(httpPost);
你应该使用
PowerMockito.when(httpResponse.execute(httpPost)).thenReturn(httpResponse);
您的测试中还存在一些问题：模拟构造函数不正确，并且根本不需要httpResponse。
此代码对我而言正常工作：
@RunWith(PowerMockRunner.class)
@PowerMockIgnore("javax.crypto.*")
@PrepareForTest({ HttpPost.class, DefaultHttpClient.class, A.class })
public class TestA {
@Test
public void testA() throws Exception {
HttpPost httpPost = Mockito.mock(HttpPost.class);
PowerMockito.whenNew(HttpPost.class).withArguments(oAuthMessage.URL).thenReturn(httpPost);
DefaultHttpClient defaultHttpClientMock = PowerMockito.mock(DefaultHttpClient.class);
HttpResponse httpResponse = PowerMockito.mock(HttpResponse.class);
PowerMockito.whenNew(DefaultHttpClient.class).withNoArguments().thenReturn(defaultHttpClientMock);
PowerMockito.when(defaultHttpClientMock.execute(httpPost)).thenReturn(httpResponse);
StatusLine statusLine = PowerMockito.mock(StatusLine.class);
PowerMockito.when(httpResponse.getStatusLine()).thenReturn(statusLine);
Integer expected = new Integer(0);
PowerMockito.when(statusLine.getStatusCode()).thenReturn(expected);
A a = new A();
Assert.assertEquals(expected, a.callMethod());
}
}
解决方法
这是我的课程正在测试：
public class A {
public Integer callMethod(){
return someMethod();
}
private Integer someMethod(){
//Some Code
HttpPost httpPost = new HttpPost(oAuthMessage.URL);
//Some Code
HttpClient httpClient = new DefaultHttpClient();
HttpResponse httpResponse = httpClient.execute(httpPost); ------1
Integer code = httpResponse.getStatusLine().getStatusCode(); ---2
return code;
}
现在我要模拟第1和2行，并返回模拟HttpResponse和代码。
我已经尝试过但是失败了：
@RunWith(PowerMockRunner.class)
@PowerMockIgnore("javax.crypto.*")
public class TestA {
//Spying some things here & Injecting them
@Test
public void testA() {
DefaultHttpClient defaultHttpClientMock = PowerMockito.mock(DefaultHttpClient.class);
HttpResponse httpResponse = PowerMockito.mock(HttpResponse.class,RETURNS_DEEP_STUBS);
HttpClient httpClient = PowerMockito.mock(HttpClient.class);
//HttpResponse httpResponseMock PowerMockito.mock(HttpResponse.class);
HttpPost httpPost = PowerMockito.mock(HttpPost.class);
PowerMockito.whenNew(DefaultHttpClient.class).withNoArguments().thenReturn(defaultHttpClientMock);
PowerMockito.doReturn(httpResponse).when(httpClient).execute(httpPost); //Returns null. It never returns httpResponse.
PowerMockito.when(httpResponse.getStatusLine().getStatusCode()).thenReturn(anyInt());
//call the method
}
PowerMockito.doReturn(httpResponse).when(httpClient).execute(httpPost)始终返回null。我希望它返回的模拟对象HttpResponse。我已经阅读了与此错误相关的其他帖子，但不确定该如何处理。有人可以帮忙吗？