Initial commit

.gitignore

+HELP.md
+target/
+!.mvn/wrapper/maven-wrapper.jar
+!**/src/main/**/target/
+!**/src/test/**/target/
+
+### STS ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+
+### IntelliJ IDEA ###
+.idea
+*.iws
+*.iml
+*.ipr
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+build/
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### VS Code ###
+.vscode/

pom.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <groupId>org.springframework.boot</groupId>
+        <artifactId>spring-boot-starter-parent</artifactId>
+        <version>2.7.16</version>
+        <relativePath/> <!-- lookup parent from repository -->
+    </parent>
+    <groupId>com.catkissfish.springboot.mocikito</groupId>
+    <artifactId>catkissfish-springboot-mockito-demo</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+    <name>catkissfish-springboot-mockito-demo</name>
+    <description>catkissfish-springboot-mockito-demo</description>
+    <properties>
+        <java.version>1.8</java.version>
+    </properties>
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.projectlombok</groupId>
+            <artifactId>lombok</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
+
+</project>

src/main/java/com/catkissfish/springboot/mocikito/demo/CatkissfishSpringbootMockitoDemoApplication.java

+package com.catkissfish.springboot.mocikito.demo;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class CatkissfishSpringbootMockitoDemoApplication {
+
+    public static void main(String[] args) {
+        SpringApplication.run(CatkissfishSpringbootMockitoDemoApplication.class, args);
+    }
+
+}

src/main/java/com/catkissfish/springboot/mocikito/demo/dto/UserUpdateReqDto.java

+package com.catkissfish.springboot.mocikito.demo.dto;
+
+import lombok.Data;
+
+@Data
+public class UserUpdateReqDto {
+    private Long id;
+    private String username;
+    private String password;
+}

src/main/java/com/catkissfish/springboot/mocikito/demo/entity/User.java

+package com.catkissfish.springboot.mocikito.demo.entity;
+
+import lombok.Data;
+
+@Data
+public class User {
+    private String name;
+    private String password;
+}

src/main/java/com/catkissfish/springboot/mocikito/demo/service/OrderService.java

+package com.catkissfish.springboot.mocikito.demo.service;
+
+public interface OrderService {
+    public int orderCount(Long userId);
+}

src/main/java/com/catkissfish/springboot/mocikito/demo/service/UserService.java

+package com.catkissfish.springboot.mocikito.demo.service;
+
+import com.catkissfish.springboot.mocikito.demo.dto.UserUpdateReqDto;
+import com.catkissfish.springboot.mocikito.demo.entity.User;
+
+public interface UserService {
+    public User selectOne(String username);
+
+    public int modifyById(UserUpdateReqDto reqDto);
+
+    public void add(User user);
+
+    public int orderCount(long userId);
+}

src/main/java/com/catkissfish/springboot/mocikito/demo/service/impl/OrderServiceImpl.java

+package com.catkissfish.springboot.mocikito.demo.service.impl;
+
+import com.catkissfish.springboot.mocikito.demo.service.OrderService;
+import org.springframework.stereotype.Service;
+
+@Service
+public class OrderServiceImpl implements OrderService {
+    @Override
+    public int orderCount(Long userId) {
+        return 0;
+    }
+}

src/main/java/com/catkissfish/springboot/mocikito/demo/service/impl/UserServiceImpl.java

+package com.catkissfish.springboot.mocikito.demo.service.impl;
+
+import com.catkissfish.springboot.mocikito.demo.dto.UserUpdateReqDto;
+import com.catkissfish.springboot.mocikito.demo.entity.User;
+import com.catkissfish.springboot.mocikito.demo.service.OrderService;
+import com.catkissfish.springboot.mocikito.demo.service.UserService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+@Service
+public class UserServiceImpl implements UserService {
+    @Autowired
+    private OrderService orderService;
+    @Override
+    public User selectOne(String username) {
+        return null;
+    }
+
+    @Override
+    public int modifyById(UserUpdateReqDto reqDto) {
+        return 0;
+    }
+
+    @Override
+    public void add(User user) {
+
+    }
+
+    @Override
+    public int orderCount(long userId) {
+        return orderService.orderCount(userId);
+    }
+
+}

src/main/resources/application.properties

+

src/test/java/com/catkissfish/springboot/mocikito/demo/Demo01.java

+package com.catkissfish.springboot.mocikito.demo;
+
+import com.catkissfish.springboot.mocikito.demo.service.UserService;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.Mock;
+import org.mockito.Mockito;
+import org.mockito.Spy;
+import org.mockito.junit.jupiter.MockitoExtension;
+
+/**
+ * 测试Mock和Spy对象
+ */
+@ExtendWith(MockitoExtension.class)
+class Demo01 {
+    @Mock
+    UserService mockUserService;
+    @Spy
+    UserService spyUserService;
+    @Test
+    public void test(){
+        System.out.println(Mockito.mockingDetails(mockUserService).isMock());
+        System.out.println(Mockito.mockingDetails(spyUserService).isSpy());
+    }
+}

src/test/java/com/catkissfish/springboot/mocikito/demo/Demo02.java

+package com.catkissfish.springboot.mocikito.demo;
+
+import com.catkissfish.springboot.mocikito.demo.dto.UserUpdateReqDto;
+import com.catkissfish.springboot.mocikito.demo.entity.User;
+import com.catkissfish.springboot.mocikito.demo.service.UserService;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.ArgumentMatchers;
+import org.mockito.Mock;
+import org.mockito.Mockito;
+import org.mockito.junit.jupiter.MockitoExtension;
+
+/**
+ * 参数匹配测试：通过方法签名(参数)来指定哪些方法调用需要被处理(插桩、verify验证)
+ */
+@ExtendWith(MockitoExtension.class)
+public class Demo02 {
+    @Mock
+    private UserService mockUserService;
+
+    /**
+     * mock对象没有插桩，不会调用真实方法，直接返回mock对象的默认值
+     * 如(int)默认值就是0，对象的默认值就是null，空集合的默认值就是长度为0的集合。
+     */
+    @Test
+    public void test1(){
+        User user = mockUserService.selectOne("zs");
+        System.out.println("user = " + user);
+        UserUpdateReqDto reqDto = new UserUpdateReqDto();
+        int i = mockUserService.modifyById(reqDto);
+        System.out.println("i = " + i);
+    }
+
+    /**
+     * 测试插桩时的参数匹配,只拦截userUpdateReqDto
+     */
+    @Test
+    public void test2(){
+        UserUpdateReqDto userUpdateReqDto = new UserUpdateReqDto();
+        userUpdateReqDto.setId(1L);
+        userUpdateReqDto.setUsername("zs");
+        //指定参数为userUpdateReqDto时调用mockUserService.modifyById返回99
+        Mockito.doReturn(99).when(mockUserService).modifyById(userUpdateReqDto);
+        int result1 = mockUserService.modifyById(userUpdateReqDto);
+        System.out.println("result1 = " + result1);
+
+        UserUpdateReqDto userUpdateReqDto2 = new UserUpdateReqDto();
+        userUpdateReqDto2.setId(2L);
+        userUpdateReqDto2.setUsername("ls");
+        int result2 = mockUserService.modifyById(userUpdateReqDto2);
+        System.out.println("result2 = " + result2);
+    }
+
+    /**
+     * ArgumentMatchers.any拦截UserUpdateReqDto类型的任意对象
+     */
+    @Test
+    public void test3(){
+        Mockito.doReturn(99).when(mockUserService).modifyById(ArgumentMatchers.any(UserUpdateReqDto.class));
+        UserUpdateReqDto userUpdateReqDto = new UserUpdateReqDto();
+        userUpdateReqDto.setId(1L);
+        userUpdateReqDto.setUsername("zs");
+        int result1 = mockUserService.modifyById(userUpdateReqDto);
+        System.out.println("result1 = " + result1);
+
+        UserUpdateReqDto userUpdateReqDto2 = new UserUpdateReqDto();
+        userUpdateReqDto2.setId(2L);
+        userUpdateReqDto2.setUsername("ls");
+        int result2 = mockUserService.modifyById(userUpdateReqDto2);
+        System.out.println("result2 = " + result2);
+    }
+
+    /**
+     *
+     */
+    @Test
+    public void test4(){
+        User user = new User();
+        user.setName("zs");
+        user.setPassword("123456");
+        mockUserService.add(user);
+//        mockUserService.add(user);
+        //校验调用了add方法一次
+        Mockito.verify(mockUserService, Mockito.times(1)).add(user);
+    }
+
+}

src/test/java/com/catkissfish/springboot/mocikito/demo/Demo03.java

+package com.catkissfish.springboot.mocikito.demo;
+
+import com.catkissfish.springboot.mocikito.demo.dto.UserUpdateReqDto;
+import com.catkissfish.springboot.mocikito.demo.service.UserService;
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.ArgumentMatchers;
+import org.mockito.Mock;
+import org.mockito.Mockito;
+import org.mockito.Spy;
+import org.mockito.invocation.InvocationOnMock;
+import org.mockito.junit.jupiter.MockitoExtension;
+import org.mockito.stubbing.Answer;
+
+import java.util.ArrayList;
+
+import static org.mockito.Mockito.*;
+
+@ExtendWith(MockitoExtension.class)
+public class Demo03 {
+    @Mock
+    private UserService userService;
+    @Mock
+    private ArrayList<String> mockList;
+    @Spy
+    private ArrayList<String> spyList;
+
+    /**
+     * 指定返回值
+     */
+    @Test
+    public void test1(){
+        Mockito.doReturn(1).when(userService).modifyById(ArgumentMatchers.any(UserUpdateReqDto.class));
+//        Assertions.assertEquals(0, userService.modifyById(new UserUpdateReqDto()));
+        Assertions.assertEquals(1, userService.modifyById(new UserUpdateReqDto()));
+    }
+
+    /**
+     * void返回值方法插桩
+     */
+    @Test
+    public void test2(){
+        doNothing().when(mockList).clear();
+        mockList.clear();
+        //验证调用一次
+        verify(mockList, times(1)).clear();
+    }
+
+    /**
+     * 抛出异常
+     */
+    @Test
+    public void test3(){
+        doThrow(RuntimeException.class).when(mockList).get(anyInt());
+        try {
+            mockList.get(5);
+        }catch (Exception e) {
+            Assertions.assertTrue(e instanceof RuntimeException);
+        }
+    }
+
+    /**
+     * 多次插桩
+     */
+    @Test
+    public void test4(){
+        doReturn(1).doReturn(2).doReturn(3).when(mockList).size();
+        Assertions.assertEquals(1, mockList.size());
+        Assertions.assertEquals(2, mockList.size());
+        Assertions.assertEquals(3, mockList.size());
+        Assertions.assertEquals(4, mockList.size());
+    }
+
+    /**
+     * 实现指定的逻辑插桩
+     */
+    @Test
+    public void test5(){
+        doAnswer(new Answer<String>() {
+            @Override
+            public String answer(InvocationOnMock invocationOnMock) throws Throwable {
+                Integer argument = invocationOnMock.getArgument(0, Integer.class);
+                return String.valueOf(argument * 100);
+            }
+        }).when(mockList).get(anyInt());
+        String result = mockList.get(3);
+        Assertions.assertEquals("300", result);
+    }
+
+    /**
+     * 执行真正的原始方法
+     */
+    @Test
+    public void test6(){
+//        //对mock对象插桩执行原始方法
+//        when(mockList.get(0)).thenCallRealMethod();
+//        System.out.println(mockList.get(0));
+
+        //未插桩spy对象默认就会调用真实方法。
+        doReturn("666").when(spyList).get(0);
+        System.out.println(spyList.get(0));
+    }
+
+    /**
+     * verify的使用
+     */
+    @Test
+    public void test7(){
+        mockList.clear();
+        //从未调用过clear方法
+//        verify(mockList, never()).clear();
+        //至少调用过多少次
+        verify(mockList, atLeast(1)).clear();
+    }
+}

src/test/java/com/catkissfish/springboot/mocikito/demo/Demo04.java

+package com.catkissfish.springboot.mocikito.demo;
+
+import com.catkissfish.springboot.mocikito.demo.service.OrderService;
+import com.catkissfish.springboot.mocikito.demo.service.impl.UserServiceImpl;
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.InjectMocks;
+import org.mockito.Mock;
+import org.mockito.Spy;
+import org.mockito.junit.jupiter.MockitoExtension;
+
+import static org.mockito.Mockito.doReturn;
+
+/**
+ * @InjectMocks注解的使用
+ */
+@ExtendWith(MockitoExtension.class)
+public class Demo04 {
+    /**
+     * userService依赖的对象，mock后注入到他本身
+     */
+    @InjectMocks
+    @Spy
+    private UserServiceImpl userService;
+    @Mock
+    private OrderService orderService;
+
+    @Test
+    public void test1(){
+        doReturn(100).when(userService).orderCount(1);
+        int orderCount = userService.orderCount(1);
+        Assertions.assertEquals(100, orderCount);
+    }
+}

src/test/java/com/catkissfish/springboot/mocikito/demo/Demo05.java

+package com.catkissfish.springboot.mocikito.demo;
+
+import com.catkissfish.springboot.mocikito.demo.service.OrderService;
+import com.catkissfish.springboot.mocikito.demo.service.impl.UserServiceImpl;
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.boot.test.mock.mockito.MockBean;
+import org.springframework.boot.test.mock.mockito.SpyBean;
+
+import static org.mockito.Mockito.doReturn;
+
+/**
+ * 集成springboot
+ */
+@SpringBootTest(classes = CatkissfishSpringbootMockitoDemoApplication.class)
+public class Demo05 {
+    @Autowired
+    @SpyBean
+    private UserServiceImpl userService;
+    @MockBean
+    private OrderService orderService;
+
+    @Test
+    public void test1(){
+//        doReturn(100).when(userService).orderCount(1);
+        doReturn(50).when(orderService).orderCount(1L);
+        int orderCount = userService.orderCount(1);
+        Assertions.assertEquals(50, orderCount);
+    }
+}