JUnit Mockito 模拟另一个类中的一种方法错误



我使用 Netbeans 8.1、Junit 和 Mockito 为我的项目编写单元测试。这是我的一些代码片段

待测试功能:

public Map<String, String> getAllUsers() {
    if (allUsers == null) {
        if (session.checkACL2("DonateBookPrivilegeLevel") || session.checkACL2("ManageUserPrivilegeLevel")) {
            Iterator<User> it = userFc.findAll().iterator();
            System.out.println("PC::enum()");
            allUsers  = new HashMap<String, String>();
            while (it.hasNext()) {
                User item = it.next();
                allUsers.put(item.getName(), item.getUserId().toString());
            }
        }
    }
    return allUsers;
}

我的测试类:

package com.controller;
import com.entities.User;
import com.jsfc.util.JsfUtil;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import javax.faces.event.ActionEvent;
import org.junit.After;
import org.junit.AfterClass;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Test;
import static org.junit.Assert.*;
import org.junit.runner.RunWith;
import static org.mockito.Matchers.any;
import static org.mockito.Matchers.anyInt;
import static org.mockito.Matchers.anyObject;
import static org.mockito.Matchers.anyString;
import org.mockito.Mock;
import org.mockito.Mockito;
import static org.mockito.Mockito.doReturn;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.spy;
import static org.mockito.Mockito.when;
import org.mockito.MockitoAnnotations;
import org.mockito.runners.MockitoJUnitRunner;

@RunWith(MockitoJUnitRunner.class)
public class PersonalCenterControllerTest {
    public PersonalCenterControllerTest() {
    }
    @BeforeClass
    public static void setUpClass() {
    }
    @AfterClass
    public static void tearDownClass() {
    }
    @Before
    public void setUp() {
         MockitoAnnotations.initMocks(this);
    }
    @After
    public void tearDown() {
    }  
    /**
     * Test of getAllUsers method, of class PersonalCenterController.
     */
    @Test
    public void testGetAllUsers() {
        System.out.println("getAllUsers");
        PersonalCenterController pcController = new PersonalCenterController();
        SessionController session = Mockito.mock(SessionController.class);
        when(session.checkACL2(anyString())).thenReturn(true).thenReturn(true);
        Map<String,String> userMap = null;
        userMap = pcController.getAllUsers();
    } 
}

如您所见,我调用在另一个类中定义的session.checkACL2(),我使用Using Mockito模拟另一个类中的类方法来修复

SessionController session = Mockito.mock(SessionController.class);
doReturn(true).when(session).checkACL2((String) anyObject());

但它在 if 线调用NullPointerException

您实际上是将模拟的SessionController实例传递给PersonalCenterController实例吗?如果您在模拟后立即尝试调用SessionController方法,它会返回您期望的内容吗?

SessionController session = Mockito.mock(SessionController.class);
when(session.checkACL2(anyString())).thenReturn(true).thenReturn(true);
assertTrue(session.checkACL2("DonateBookPrivilegeLevel"));
assertTrue(session.checkACL2("ManageUserPrivilegeLevel");

正如我所看到的NullPointerException这里可能来自session实例,要么被null要么返回null,然后被转换为boolean。我的第一步是弄清楚是哪个。

确保使用"MockitoJUnitRunner.class"运行JUnit。

@RunWith(MockitoJUnitRunner.class)
public class MyClassTest{
public void myMethodTest(){
   SessionController session = Mockito.mock(SessionController.class);
 Mockito.when(session).checkACL2(Mockito.anyString()).thenReturn(true).thenReturn(true);
  //Write logic to test your businesss logic inside class and assert the result.
}
}

相关内容

  • 没有找到相关文章

最新更新