采用EasyMock对Struts2的action进行测试

最新推荐文章于 2020-07-03 01:03:58 发布

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#单元测试 #json #Spring #Hibernate #Web

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本文介绍了一个基于Struts2+Spring+Hibernate框架的费用删除功能，并通过EasyMock进行单元测试的过程。测试包括生成Mock对象、设定预期行为、进行测试及验证等步骤。

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采用Struts2+Spring+Hibernate，控制层一段被测试的代码如下：

/**
* 删除费用
* @return
*/
public String doDeleteFeeRecord() {
     String message = "";
     PrintWriter pw = null;
     String feeRecordId = request.getParameter("feeRecordId");
     UserInfoVO userInfoVO = (UserInfoVO) session.get("userInfo");
     try {
        message = "{success:true}";
        feeRecordService.deleteFeeRecord(feeRecordId );
        logService.insertLog(userInfoVO.getLoginName(), "删除费用成功", request.getRemoteAddr(), 1);
     } catch (FinanceException e) {
        message = "{success:false}";
        try {
           logService.insertLog(userInfoVO.getLoginName(), "删除费用失败",request.getRemoteAddr(), 0);
        } catch (FinanceException ex) {
           request.setAttribute("errorText", ex.getMessage());
           return "showWebError";
        }
     }
     response.setContentType("text/json;charset=GBK");
     try {
       pw = response.getWriter();
       pw.write(message);
       pw.close();
     } catch (IOException e) {
        request.setAttribute("errorText", e.getMessage());
        return "showWebError";
     }
     return null;
}

采用EasyMock对上面的代码进行测试，这个过程大致可以分为以下几个步骤：

使用 EasyMock 生成 Mock 对象；设定 Mock 对象的预期行为和输出；将 Mock 对象切换到 Replay 状态；调用 Mock 对象方法进行单元测试；对 Mock 对象的行为进行验证。

测试类如下：

public class TestFeeRecordAction {
private FeeRecordAction feeRecordAction = null;

   @BeforeClass
    public static void setUpBeforeClass() throws Exception {
    }

    @AfterClass
    public static void tearDownAfterClass() throws Exception {
    }

    @Before
    public void setUp() throws Exception {
        ApplicationContext context = new FileSystemXmlApplicationContext("E:/software/Java/workstation/financeWeb/WebRoot/WEB-    INF/FinanceContext.xml");
       feeRecordAction = (FeeRecordAction) context.getBean("feeRecordAction");
    }

    @After
    public void tearDown() throws Exception {
        feeRecordAction = null;
    }

@Test
public void testDoDeleteFeeRecord() throws IOException {

/**

* 生成Mock对象

         */
        HttpServletRequest request = EasyMock.createMock(HttpServletRequest.class);
        feeRecordAction.setServletRequest(request);

HttpServletResponse response = EasyMock.createMock(HttpServletResponse.class);
feeRecordAction.setServletResponse(response);

        Map<String, UserInfoVO> map = new HashMap<String, UserInfoVO>();
        UserInfoVO userInfoVO = new UserInfoVO();
       userInfoVO.setLoginName("admin");
        map.put("userInfo", userInfoVO);
        feeRecordAction.setSession(map);

/**

* 设定 Mock 对象的预期行为和输出

        EasyMock.expect(request.getParameter("feeRecordId")).andReturn("1").once();
        EasyMock.expect(request.getRemoteAddr()).andReturn("192.168.1.103").once();
        PrintWriter pw = new PrintWriter(System.out, true);
        EasyMock.expect(response.getWriter()).andReturn(pw).once();

/**

* 将 Mock 对象切换到 Replay 状态

EasyMock.replay(request);
EasyMock.replay(response);

/**

* 调用 Mock 对象方法进行单元测试

feeRecordAction.doDeleteFeeRecord();

pw.flush();

/**

* 对 Mock 对象的行为进行验证

        EasyMock.verify(request);
        EasyMock.verify(response);
    }
}

运行测试用例时，需要将方法doDeleteFeeRecord中的response.setContentType("text/json;charset=GBK");注释掉