使用Mockito模拟HttpSession [英] Mocking HttpSession using Mockito

问题描述

我需要测试以下控制器方法:

I need to test the following controller method:

@RequestMapping(value="/addLocation")
public String addLocation(HttpServletRequest request, HttpSession session) {

    String location = (String) request.getParameter("plz_ort");
    String radius = (String) request.getParameter("umkreis");

    ((ArrayList<String>) session.getAttribute("queryTopics")).clone();        

    ...
}

因此，我使用Mockito和JUnit编写了该测试类

Therefor I wrote this test class using Mockito and JUnit

import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;

import java.util.ArrayList;

import org.junit.Before;
import org.junit.Ignore;
import org.junit.Test;
import org.mockito.InjectMocks;
import org.mockito.Mock;
import org.mockito.MockitoAnnotations;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.mock.web.MockHttpSession;
import org.springframework.test.web.servlet.MockMvc;
import org.springframework.test.web.servlet.setup.MockMvcBuilders;

public class MyControllerTest {


    @InjectMocks
    private MyController myController;

    private MockMvc mockMvc;

    @InjectMocks
    MockHttpSession session;

    @Before
    public void setup() {

        // Process mock annotations
        MockitoAnnotations.initMocks(this);

        // Setup Spring test in standalone mode
        this.mockMvc = MockMvcBuilders.standaloneSetup(MyController)
                .build();

    }

    @Test
    public void addLocation_StatusOK() throws Exception {
        session.setAttribute("queryTopics", new ArrayList<String>(0));

        this.mockMvc.perform(
                post("/addLocation")
                        .param("plz_ort", "PLZ ORT")
                        .param("umkreis", "5"))
                .andExpect(
                        status().isOk());

    }

}

如您所见，运行此测试时，我需要模拟会话. 当我调试代码并停止在session.setAttribute("queryTopics", new ArrayList<String>(0));行时，会话对象为org.springframework.mock.web.MockHttpSession@5583d693(包含属性哈希映射{queryTopics=[]})，所以我认为很好. 但是，我在((ArrayList<String>) session.getAttribute("queryTopics")).clone();行中的下一个断点的会话对象是org.springframework.mock.web.MockHttpSession@7545a27f.

As you can see I need to mock the session when running this test. When I debug through the code and stop at the line session.setAttribute("queryTopics", new ArrayList<String>(0)); the session object is org.springframework.mock.web.MockHttpSession@5583d693 (containing a attributes hash map {queryTopics=[]}), so I think that's fine. However the session object of my next breakpoint in line ((ArrayList<String>) session.getAttribute("queryTopics")).clone(); is org.springframework.mock.web.MockHttpSession@7545a27f.

至少它是正确的类型(MockHttpSession)，但是它具有不同的ID，因此它实际上是一个全新的对象，因此不包含测试中的会话属性.

At least it's the correct type (MockHttpSession) but it's got a different ID so it's actually a whole new object and thus doesn't contain the session attributes from the test.

您能帮我解决这个问题吗?

Could you please help me out on this one?

推荐答案

模拟MVC将创建一个Spring模拟请求和一个Spring模拟会话，然后调用您的控制器方法.为了在调用controller方法之前在会话中设置某些状态，您需要

The mock MVC will create a spring mock request and a spring mock session and then invoke your controller method. In order to set some state in the session before the controller method is called, you need to configure the mock request using the builder:

public class MyControllerTest {

    @InjectMocks
    private MyController myController;

    private MockMvc mockMvc;

    @Before
    public void setup() {
        // Process mock annotations
        MockitoAnnotations.initMocks(this);

        // Setup Spring test in standalone mode
        this.mockMvc = MockMvcBuilders.standaloneSetup(MyController)
                .build();

    }

    @Test
    public void addLocation_StatusOK() throws Exception {
        this.mockMvc.perform(
                post("/addLocation")
                        .param("plz_ort", "PLZ ORT")
                        .param("umkreis", "5")
                        .sessionAttr("queryTopics", new ArrayList<String>(0))
                .andExpect(
                        status().isOk());
    }
}

这篇关于使用Mockito模拟HttpSession的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！