Весенний ботинок + JUnit 5 + Мокито

Автор оригинала: mkyong.

В этой статье мы покажем вам, как выполнить интеграционный тест Spring Boot 2 с JUnit 5, а также Mockito.

Пружинный ботинок 2.1.2. ВЫПУСК
Июнь 5
Мокито 2
Мавен 3

Короче говоря, исключите junit4 из spring-boot-starter-test и включите движок JUnit 5 jupiter вручную, готово.

Давайте посмотрим следующее веб-приложение Spring boot MVC и расскажем, как выполнить модульное тестирование с помощью JUnit 5 и насмешек с помощью платформы Mockito.

1. Знаток



    4.0.0

    com.mkyong.spring
    testing-junit5-mockito
    1.0

    
        1.8
        5.3.2
        2.24.0
    

    
        org.springframework.boot
        spring-boot-starter-parent
        2.1.2.RELEASE
    

    

        
        
            org.springframework.boot
            spring-boot-starter-web
        

        
        
            org.springframework.boot
            spring-boot-starter-test
            test
            
                
                    junit
                    junit
                
            
        

        
        
            org.junit.jupiter
            junit-jupiter-engine
            ${junit-jupiter.version}
            test
        

        
            org.springframework.boot
            spring-boot-devtools
            true
        

    

    
        
            
                org.springframework.boot
                spring-boot-maven-plugin
            

            
                org.apache.maven.plugins
                maven-surefire-plugin
                2.22.0

Отображение зависимостей проекта.

$ mvn dependency:tree

[INFO] com.mkyong.spring:testing-junit5-mockito:jar:1.0
[INFO] +- org.springframework.boot:spring-boot-starter-web:jar:2.1.2.RELEASE:compile
[INFO] |  +- org.springframework.boot:spring-boot-starter:jar:2.1.2.RELEASE:compile
[INFO] |  |  +- org.springframework.boot:spring-boot-starter-logging:jar:2.1.2.RELEASE:compile
[INFO] |  |  |  +- ch.qos.logback:logback-classic:jar:1.2.3:compile
[INFO] |  |  |  |  \- ch.qos.logback:logback-core:jar:1.2.3:compile
[INFO] |  |  |  +- org.apache.logging.log4j:log4j-to-slf4j:jar:2.11.1:compile
[INFO] |  |  |  |  \- org.apache.logging.log4j:log4j-api:jar:2.11.1:compile
[INFO] |  |  |  \- org.slf4j:jul-to-slf4j:jar:1.7.25:compile
[INFO] |  |  +- javax.annotation:javax.annotation-api:jar:1.3.2:compile
[INFO] |  |  \- org.yaml:snakeyaml:jar:1.23:runtime
[INFO] |  +- org.springframework.boot:spring-boot-starter-json:jar:2.1.2.RELEASE:compile
[INFO] |  |  +- com.fasterxml.jackson.core:jackson-databind:jar:2.9.8:compile
[INFO] |  |  |  +- com.fasterxml.jackson.core:jackson-annotations:jar:2.9.0:compile
[INFO] |  |  |  \- com.fasterxml.jackson.core:jackson-core:jar:2.9.8:compile
[INFO] |  |  +- com.fasterxml.jackson.datatype:jackson-datatype-jdk8:jar:2.9.8:compile
[INFO] |  |  +- com.fasterxml.jackson.datatype:jackson-datatype-jsr310:jar:2.9.8:compile
[INFO] |  |  \- com.fasterxml.jackson.module:jackson-module-parameter-names:jar:2.9.8:compile
[INFO] |  +- org.springframework.boot:spring-boot-starter-tomcat:jar:2.1.2.RELEASE:compile
[INFO] |  |  +- org.apache.tomcat.embed:tomcat-embed-core:jar:9.0.14:compile
[INFO] |  |  +- org.apache.tomcat.embed:tomcat-embed-el:jar:9.0.14:compile
[INFO] |  |  \- org.apache.tomcat.embed:tomcat-embed-websocket:jar:9.0.14:compile
[INFO] |  +- org.hibernate.validator:hibernate-validator:jar:6.0.14.Final:compile
[INFO] |  |  +- javax.validation:validation-api:jar:2.0.1.Final:compile
[INFO] |  |  +- org.jboss.logging:jboss-logging:jar:3.3.2.Final:compile
[INFO] |  |  \- com.fasterxml:classmate:jar:1.4.0:compile
[INFO] |  +- org.springframework:spring-web:jar:5.1.4.RELEASE:compile
[INFO] |  |  \- org.springframework:spring-beans:jar:5.1.4.RELEASE:compile
[INFO] |  \- org.springframework:spring-webmvc:jar:5.1.4.RELEASE:compile
[INFO] |     +- org.springframework:spring-aop:jar:5.1.4.RELEASE:compile
[INFO] |     +- org.springframework:spring-context:jar:5.1.4.RELEASE:compile
[INFO] |     \- org.springframework:spring-expression:jar:5.1.4.RELEASE:compile
[INFO] +- org.springframework.boot:spring-boot-starter-test:jar:2.1.2.RELEASE:test
[INFO] |  +- org.springframework.boot:spring-boot-test:jar:2.1.2.RELEASE:test
[INFO] |  +- org.springframework.boot:spring-boot-test-autoconfigure:jar:2.1.2.RELEASE:test
[INFO] |  +- com.jayway.jsonpath:json-path:jar:2.4.0:test
[INFO] |  |  +- net.minidev:json-smart:jar:2.3:test
[INFO] |  |  |  \- net.minidev:accessors-smart:jar:1.2:test
[INFO] |  |  |     \- org.ow2.asm:asm:jar:5.0.4:test
[INFO] |  |  \- org.slf4j:slf4j-api:jar:1.7.25:compile
[INFO] |  +- org.assertj:assertj-core:jar:3.11.1:test
[INFO] |  +- org.mockito:mockito-core:jar:2.24.0:test
[INFO] |  |  +- net.bytebuddy:byte-buddy:jar:1.9.7:test
[INFO] |  |  +- net.bytebuddy:byte-buddy-agent:jar:1.9.7:test
[INFO] |  |  \- org.objenesis:objenesis:jar:2.6:test
[INFO] |  +- org.hamcrest:hamcrest-core:jar:1.3:test
[INFO] |  +- org.hamcrest:hamcrest-library:jar:1.3:test
[INFO] |  +- org.skyscreamer:jsonassert:jar:1.5.0:test
[INFO] |  |  \- com.vaadin.external.google:android-json:jar:0.0.20131108.vaadin1:test
[INFO] |  +- org.springframework:spring-core:jar:5.1.4.RELEASE:compile
[INFO] |  |  \- org.springframework:spring-jcl:jar:5.1.4.RELEASE:compile
[INFO] |  +- org.springframework:spring-test:jar:5.1.4.RELEASE:test
[INFO] |  \- org.xmlunit:xmlunit-core:jar:2.6.2:test
[INFO] |     \- javax.xml.bind:jaxb-api:jar:2.3.1:test
[INFO] |        \- javax.activation:javax.activation-api:jar:1.2.0:test
[INFO] +- org.junit.jupiter:junit-jupiter-engine:jar:5.3.2:test
[INFO] |  +- org.apiguardian:apiguardian-api:jar:1.0.0:test
[INFO] |  +- org.junit.platform:junit-platform-engine:jar:1.3.2:test
[INFO] |  |  +- org.junit.platform:junit-platform-commons:jar:1.3.2:test
[INFO] |  |  \- org.opentest4j:opentest4j:jar:1.1.1:test
[INFO] |  \- org.junit.jupiter:junit-jupiter-api:jar:5.3.2:test
[INFO] \- org.springframework.boot:spring-boot-devtools:jar:2.1.2.RELEASE:compile (optional)
[INFO]    +- org.springframework.boot:spring-boot:jar:2.1.2.RELEASE:compile
[INFO]    \- org.springframework.boot:spring-boot-autoconfigure:jar:2.1.2.RELEASE:compile

2. Тестовая пружинная загрузка + JUnit 5 + Mockito.

2.1 Протестируйте следующие компоненты пружины.

package com.mkyong.core.services;

import com.mkyong.core.repository.HelloRepository;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

@Service
public class HelloServiceImpl implements HelloService {

    @Autowired
    HelloRepository helloRepository;

    @Override
    public String get() {
        return helloRepository.get();
    }

}

package com.mkyong.core.repository;

import org.springframework.stereotype.Repository;

@Repository
public class HelloRepositoryImpl implements HelloRepository {
    @Override
    public String get() {
        return "Hello JUnit 5";
    }
}

2.2 Июнь 5

package com.mkyong.core.services;

import org.junit.jupiter.api.DisplayName;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;

import static org.junit.jupiter.api.Assertions.assertEquals;

@SpringBootTest
public class HelloServiceTest {

    @Autowired
    HelloService helloService;

    @DisplayName("Test Spring @Autowired Integration")
    @Test
    void testGet() {
        assertEquals("Hello JUnit 5", helloService.get());
    }
    
}

2.3 Мокито.

package com.mkyong.core.services;

import com.mkyong.core.repository.HelloRepository;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.DisplayName;
import org.junit.jupiter.api.Test;
import org.mockito.InjectMocks;
import org.mockito.Mock;
import org.springframework.boot.test.context.SpringBootTest;

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.mockito.Mockito.when;

@SpringBootTest
public class HelloServiceMockTest {

    @Mock
    private HelloRepository helloRepository;

    @InjectMocks // auto inject helloRepository
    private HelloService helloService = new HelloServiceImpl();

    @BeforeEach
    void setMockOutput() {
        when(helloRepository.get()).thenReturn("Hello Mockito From Repository");
    }

    @DisplayName("Test Mock helloService + helloRepository")
    @Test
    void testGet() {
        assertEquals("Hello Mockito From Repository", helloService.get());
    }

}

3. Протестируйте контроллер Spring MVC.

3.1 Контроллер MVC.

package com.mkyong.core.controller;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.ResponseBody;

@Controller
public class MainController {

    @ResponseBody
    @GetMapping("/")
    public String hello() {
        return "Hello Controller";
    }

}

3.2 JUnit 5 и тест MVC.

package com.mkyong.core.controller;

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.context.SpringBootTest.WebEnvironment;
import org.springframework.boot.test.web.client.TestRestTemplate;
import org.springframework.boot.web.server.LocalServerPort;
import org.springframework.http.ResponseEntity;

import java.net.URL;

import static org.junit.jupiter.api.Assertions.assertEquals;

@SpringBootTest(webEnvironment = WebEnvironment.RANDOM_PORT)
public class MainControllerTest {

    // bind the above RANDOM_PORT
    @LocalServerPort
    private int port;

    @Autowired
    private TestRestTemplate restTemplate;

    @Test
    public void getHello() throws Exception {

        ResponseEntity response = restTemplate.getForEntity(
			new URL("http://localhost:" + port + "/").toString(), String.class);
        assertEquals("Hello Controller", response.getBody());

    }

}

Сделано.

1. Знаток

2. Тестовая пружинная загрузка + JUnit 5 + Mockito.

3. Протестируйте контроллер Spring MVC.

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