使用mockserver来进行http接口mock

叁歲伎倆 2022-05-23 05:35 331阅读 0赞

## 前言 ##

进行单元测试时，必须要mock掉第三方的依赖调用，而mockserver提供了足够的api来支持这种http的mock，现在简单介绍如何使用mockserver进行http接口mock。

## 依赖 ##

*  mockserver依赖
    
    1.  `<dependency>`
    2.  `<groupId>org.mock-server</groupId>`
    3.  `<artifactId>mockserver-netty</artifactId>`
    4.  `<version>3.10.4</version>`
    5.  `</dependency>`
 *  `httpclient依赖`

1.  `<dependency>`
2.  `<groupId>org.apache.httpcomponents</groupId>`
3.  `<artifactId>httpclient</artifactId>`
4.  `<version>4.3.3</version>`
5.  `</dependency>`
6.  ``
7.  ``
8.  `<dependency>`
9.  `<groupId>org.apache.httpcomponents</groupId>`
10. `<artifactId>httpcore</artifactId>`
11. `<version>4.3.2</version>`
12. `</dependency>`

httpclient的版本可能会出现不一致的情况，抛出异常，以上的这个版本匹配是没有异常的组合。

## 举例 ##

1.  `package com.yuliang.dubbo.service;`
2.  ``
3.  ``
4.  `import org.apache.http.client.methods.CloseableHttpResponse;`
5.  `import org.apache.http.client.methods.HttpGet;`
6.  `import org.apache.http.impl.client.CloseableHttpClient;`
7.  `import org.apache.http.impl.client.HttpClients;`
8.  `import org.junit.Rule;`
9.  `import org.junit.Test;`
10. `import org.mockserver.client.server.MockServerClient;`
11. `import org.mockserver.junit.MockServerRule;`
12. ``
13. `import java.io.BufferedReader;`
14. `import java.io.IOException;`
15. `import java.io.InputStream;`
16. `import java.io.InputStreamReader;`
17. ``
18. `import static org.hamcrest.CoreMatchers.equalTo;`
19. `import static org.hamcrest.MatcherAssert.assertThat;`
20. `import static org.mockserver.model.HttpRequest.request;`
21. `import static org.mockserver.model.HttpResponse.response;`
22. ``
23. `/**`
24. `* Created by leo on 16/8/16.`
25. `*/`
26. `public class MockServerTest {`
27. ``
28. `@Rule`
29. `public MockServerRule server = new MockServerRule(this, 5000);`
30. ``
31. `@Test`
32. `public void testMockServer() throws IOException {`
33. `MockServerClient mockClient = new MockServerClient("localhost", 5000);`
34. `String expected = "{ message: 'incorrect username and password combination' }";`
35. ``
36. `mockClient.when(`
37. `request()`
38. `.withPath("/hello/John")`
39. `.withMethod("GET")`
40. `// .withHeader(new Header(HttpHeaders.ACCEPT, MediaType.TEXT_PLAIN))`
41. `// .withQueryStringParameter(new Parameter("my-token", "12345"))`
42. `).respond(`
43. `response()`
44. `.withStatusCode(200)`
45. `.withBody(expected)`
46. `);`
47. ``
48. `CloseableHttpClient client = HttpClients.createDefault();`
49. `HttpGet httpGet = new HttpGet("http://localhost:5000/hello/John");`
50. `CloseableHttpResponse response = client.execute(httpGet);`
51. ``
52. `//验证输出是否是正确`
53. `InputStream content = response.getEntity().getContent();`
54. `InputStreamReader inputStreamReader = new InputStreamReader(content);`
55. `BufferedReader bufferedReader = new BufferedReader(inputStreamReader);`
56. `String responseText = bufferedReader.readLine();`
57. `assertThat(responseText, equalTo(expected));`
58. ``
59. `}`
60. `}`

`mock http post请求 @Test public void testPostMockServer() throws IOException { MockServerClient mockClient = new MockServerClient("localhost", 5000); String expected = "You have logged in successfully."; mockClient.when( request() .withPath("/hello/John") .withMethod("POST") .withHeader(new Header(HttpHeaders.ACCEPT, MediaType.TEXT_PLAIN)) // .withQueryStringParameter(new Parameter("my-token", "12345")) .withBody("username=foo&password=123456") ).respond( response() .withStatusCode(200) .withBody(expected) ); CloseableHttpClient client = HttpClients.createDefault(); HttpPost httpPost = new HttpPost("http://localhost:5000/hello/John"); httpPost.addHeader("Accept", "text/plain"); ArrayList<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(); nameValuePairs.add(new BasicNameValuePair("username", "foo")); nameValuePairs.add(new BasicNameValuePair("password", "123456")); httpPost.setEntity(new UrlEncodedFormEntity(nameValuePairs)); CloseableHttpResponse response = client.execute(httpPost); //验证输出是否是正确 InputStream content = response.getEntity().getContent(); InputStreamReader inputStreamReader = new InputStreamReader(content); BufferedReader bufferedReader = new BufferedReader(inputStreamReader); String responseText = bufferedReader.readLine(); assertThat(responseText, equalTo(expected)); }`