使用Mockito模拟Apache HTTPClient [英] Mocking Apache HTTPClient using Mockito
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问题描述
我正在尝试模拟Apache HttpClient接口,以便模拟下面提到的一种方法来返回一个存根的JSON对象作为响应。
I'm trying to mock Apache HttpClient Interface in order to mock one of its methods mentioned below to return a stubbed JSON object in response.
HttpResponse response = defaultHttpClient.execute(postRequest);
有人可以通过一些示例代码建议如何实现这一目标吗?非常感谢您的帮助。
Could somebody be able to suggest how to achieve this with some sample code? Your help would be greatly appreciated.
谢谢
推荐答案
以下是我测试代码所做的工作使用Mockito和Apache HttpBuilder:
Here is what I did to test my code using Mockito and Apache HttpBuilder:
受测试的类别:
import java.io.BufferedReader;
import java.io.IOException;
import javax.ws.rs.core.Response.Status;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.HttpClientBuilder;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class StatusApiClient {
private static final Logger LOG = LoggerFactory.getLogger(StatusApiClient.class);
private String targetUrl = "";
private HttpClient client = null;
HttpGet httpGet = null;
public StatusApiClient(HttpClient client, HttpGet httpGet) {
this.client = client;
this.httpGet = httpGet;
}
public StatusApiClient(String targetUrl) {
this.targetUrl = targetUrl;
this.client = HttpClientBuilder.create().build();
this.httpGet = new HttpGet(targetUrl);
}
public boolean getStatus() {
BufferedReader rd = null;
boolean status = false;
try{
LOG.debug("Requesting status: " + targetUrl);
HttpResponse response = client.execute(httpGet);
if(response.getStatusLine().getStatusCode() == Status.OK.getStatusCode()) {
LOG.debug("Is online.");
status = true;
}
} catch(Exception e) {
LOG.error("Error getting the status", e);
} finally {
if (rd != null) {
try{
rd.close();
} catch (IOException ioe) {
LOG.error("Error while closing the Buffered Reader used for reading the status", ioe);
}
}
}
return status;
}
}
测试:
import java.io.IOException;
import org.apache.http.HttpResponse;
import org.apache.http.StatusLine;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.conn.HttpHostConnectException;
import org.junit.Assert;
import org.junit.Test;
import org.mockito.Mockito;
public class StatusApiClientTest extends Mockito {
@Test
public void should_return_true_if_the_status_api_works_properly() throws ClientProtocolException, IOException {
//given:
HttpClient httpClient = mock(HttpClient.class);
HttpGet httpGet = mock(HttpGet.class);
HttpResponse httpResponse = mock(HttpResponse.class);
StatusLine statusLine = mock(StatusLine.class);
//and:
when(statusLine.getStatusCode()).thenReturn(200);
when(httpResponse.getStatusLine()).thenReturn(statusLine);
when(httpClient.execute(httpGet)).thenReturn(httpResponse);
//and:
StatusApiClient client = new StatusApiClient(httpClient, httpGet);
//when:
boolean status = client.getStatus();
//then:
Assert.assertTrue(status);
}
@Test
public void should_return_false_if_status_api_do_not_respond() throws ClientProtocolException, IOException {
//given:
HttpClient httpClient = mock(HttpClient.class);
HttpGet httpGet = mock(HttpGet.class);
HttpResponse httpResponse = mock(HttpResponse.class);
StatusLine statusLine = mock(StatusLine.class);
//and:
when(httpClient.execute(httpGet)).thenThrow(HttpHostConnectException.class);
//and:
StatusApiClient client = new StatusApiClient(httpClient, httpGet);
//when:
boolean status = client.getStatus();
//then:
Assert.assertFalse(status);
}
}
你觉得大家好吗?我需要改进一些东西吗? (是的,我知道,评论。这是我从我的Spock背景中得到的:D)
What do you think folks, do I need to improve something? (Yeah, I know, the comments. That is something I brought from my Spock background :D)
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