我有三种方法,
- void save(字符串 a, 字符串 b)
- String getId(String a, Pojo p)
- void update(String a, String b, StringEntity c)
这是实现(不是完整的实现),
String getId(String accessToken, Pojo p) {
//Note that the pojo is for formatting the payload for the request, nothing more
HttpResponse response = httpRequestService.makeGetRequest(url, TOKEN_PREFIX, accessToken,
CONTENT_TYPE);
if (response.getStatusLine().getStatusCode() == 200) {
log.debug("Success");
}
//Code for getting the id from the response
return id;
}
void update(String accassToken, String id, StringEntity payload) {
HttpResponse response = httpRequestService.makePutRequest(url + id,
TOKEN_PREFIX, accessToken, CONTENT_TYPE, payload);
if (response.getStatusLine().getStatusCode() == 200) {
log.debug("Success");
}
}
void save(String accessToken, String payload) {
//The getId() is called here
String id = getId(/*arguments*/);
if(id == null) {
log.error("Error");
} else {
//The update() is called here
update(/*arguments*/);
}
}
如上所述,getId 和 update 方法在 save 方法内部调用,并且 getId 和 update 方法都有 HTTP 调用。
我必须为 save() 方法编写一个单元测试。这是我尝试过的。
//This is an interface with methods to call HTTP requests.
HttpRequestService httpRequestService = Mockito.mock(HttpRequestService.class);
//Constructor injection
ClassWithMethods a = new ClasswithMethods(httpRequestService);
HttpResponse responseGet = Mockito.mock(HttpResponse.class);
StatusLine statusLineGet = Mockito.mock(StatusLine.class);
HttpEntity httpEntity = Mockito.mock(HttpEntity.class);
Mockito.when(responseGet.getStatusLine()).thenReturn(statusLineGet);
Mockito.when(statusLineGet.getStatusCode()).thenReturn(200);
Mockito.when(responseGet.getEntity()).thenReturn(httpEntity);
Mockito.when(httpEntity.getContent()).thenReturn(IOUtils.toInputStream(stream));
Mockito.when(httpRequestService.makeGetRequest(url, TOKEN_PREFIX, accessToken,
CONTENT_TYPE).thenReturn(responseGet);
HttpResponse responsePut = Mockito.mock(HttpResponse.class);
StatusLine statusLinePut = Mockito.mock(StatusLine.class);
Mockito.when(responsePut.getStatusLine()).thenReturn(statusLinePut);
Mockito.when(statusLinePut.getStatusCode()).thenReturn(200);
Mockito.when(httpRequestService.makePutRequest(url + id, TOKEN_PREFIX,
accessToken, CONTENT_TYPE, payloadEntity).thenReturn(responsePut);
a.save(accessToken, payload);
但是在测试时,responsePut 返回 null。论据也相匹配。
问题:如何测试这个调用两个HTTP方法的保存方法?
这可能不是最好的方法。如果有更好的方法来测试这样的方法,请提出建议。
谢谢
请注意,httpRequestService 是一个带有 HTTP 调用方法的接口(interface),并且也使用了构造函数注入(inject)。
最佳答案
您应该将以下内容提取到一个单独的方法中(PUT 也是如此):
HttpResponse response = httpRequestService.makeGetRequest(url, TOKEN_PREFIX, accessToken,
CONTENT_TYPE);
然后你可以使用mockito来 stub 该方法:
when(obj.methodGET(...)).thenReturns(...)
记住:您的单元测试不应该通过网络进行调用!
编辑
private HttpResponse get(String url, ...) {
return httpRequestService.makeGetRequest(url, TOKEN_PREFIX, accessToken,
CONTENT_TYPE);
}
private HttpResponse put(String url, ...) {
return httpRequestService.makePutRequest(url + id,
TOKEN_PREFIX, accessToken, CONTENT_TYPE, payload);
}
然后:
...
when(mockedStatusLineObj.getStatusCode()).thenReturns(200);
HttpResponse mockedGet = mock(HttpResponse.class);
when(mockedGet.getStatusLine()).thenReturns(mockedStatusLineObj);
when(object.get(...)).thenReturns(mockedGet);
when(object.put(...)).thenReturns(...);
关于java - 使用 Mockito 和 jUnit 为具有两个 HTTP 调用的方法编写单元测试,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/47178048/