[英]How to use Mockito to mock a request in Jersey client?
我有一个将POJO发布到外部API的类。 我想测试这种方法。
public int sendRequest(Event event) {
Client client = ClientBuilder.newClient();
WebTarget baseTarget = client.target(some url);
Invocation.Builder builder = baseTarget.request();
Response response = builder.post(Entity.entity(event, MediaType.APPLICATION_JSON));
int statusCode = response.getStatus();
String type = response.getHeaderString("Content-Type");
if (Status.Family.SUCCESSFUL == Status.Family.familyOf(statusCode)) {
m_log.debug("The event was successfully processed by t API %s", event);
}
else if (Status.Family.CLIENT_ERROR == Status.Family.familyOf(statusCode)) {
m_log.error("Status code : <%s> The request was not successfully processed by API. %s", statusCode, event);
}
return statusCode;
}
我写了这样的单元测试
@Test
public void sendRequest_postAuditEvent_returnOK() {
int statusCode = EventProcessor.sendRequest(event);
assertEquals(Status.OK.getStatusCode(), statusCode);
}
但这会向API发送真正的请求。 我是Mockito的新手。 谁能帮我如何模拟这个要求?
编辑:
@Mock Client m_client;
@Mock WebTarget m_webTarget;
@Mock Invocation.Builder m_builder;
@Mock Response m_response;
@Test
public void sendRequest_postAuditEvent_returnOK() {
when(m_client.target(anyString())).thenReturn(m_webTarget);
when(m_webTarget.request()).thenReturn(m_builder);
when(m_builder.post(Entity.entity(m_AuditEvent, MediaType.APPLICATION_JSON))).thenReturn(m_response);
when(m_response.getStatus()).thenReturn(Response.Status.BAD_REQUEST.getStatusCode());
assertEquals(Status.BAD_REQUEST.getStatusCode(), m_AuditEventProcessor.sendRequest(m_AuditEvent));
}
我尝试模拟方法,但是不起作用。 仍然调用真正的方法。
理想情况下,该类应在其构造函数中使用Client
,以便在测试它时可以用模拟代替真实的客户端实例。
class EventProcessor {
private Client client;
public EventProcessor(Client client) {
this.client = client;
}
public int sendRequest(Event event) {
WebTarget baseTarget = client.target(some url);
...
}
}
您可以像本文中那样使用powerMockito与Mockito模拟静态方法
如果可以模拟此返回的对象ClientBuilder.newClient(),则可以模拟调用链中的所有其他对象。
PowerMockito.mockStatic(ClientBuilder.class);
BDDMockito.given(ClientBuilder.newClient(...)).willReturn([a Mockito.mock()...]);
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