JUnit 5 + Gradle示例

朱雀 2023-02-15 05:06 177阅读 0赞

![junit 5徽标][junit 5]![junit 5徽标][junit 5]

本文向您展示了如何在Gradle项目中添加JUnit 5。

使用的技术：

*  摇篮5.4.1
 *  Java 8
 *  JUnit 5.5.2

## 1. Gradle + JUnit 5 ##

1.添加JUni 5 jupiter引擎，并定义`useJUnitPlatform()` ，如下所示：

gradle.build

plugins {
    	id 'java'
    	id 'eclipse' // optional, for Eclipse project
    	id 'idea'	 // optional, for IntelliJ IDEA project
    }
    
    repositories {
    	mavenCentral()
    }
    
    dependencies {
    	testImplementation('org.junit.jupiter:junit-jupiter:5.5.2')
    }
    
    test {
    	useJUnitPlatform()
    }

## 2. Gradle项目 ##

标准的Java项目结构。

![项目结构][format_png]![项目结构][format_png]

## 3. JUnit 5 ##

3.1一个简单的单元测试示例。

MessageService.java

package com.mkyong.core;
    
    public class MessageService {
    
        public static String get() {
            return "Hello JUnit 5";
        }
    
    }

3.2 JUnit 5简单的`Assertions`测试。

MessageServiceTest.java

package com.mkyong.core;
    
    import org.junit.jupiter.api.DisplayName;
    import org.junit.jupiter.api.Test;
    
    import static org.junit.jupiter.api.Assertions.assertEquals;
    
    public class MessageServiceTest {
    
        @DisplayName("Test MessageService.get()")
        @Test
        void testGet() {
            assertEquals("Hello JUnit 5", MessageService.get());
        }
    
    }

## 4. gradle测试 ##

4.1在Gradle中运行测试。

Terminal

$ cd project 
    $ gradle test 
    
    BUILD SUCCESSFUL in 0s
    3 actionable tasks: 3 up-to-date

4.2如果测试失败，它将显示以下内容：

Terminal

$ gradle test 
    
    > Task :test FAILED
    
    com.mkyong.core.MessageServiceTest > testGet() FAILED
        org.opentest4j.AssertionFailedError at MessageServiceTest.java:13
    
    1 test completed, 1 failed

4.3 `gradle test`默认情况下会生成以下HTML测试报告：

`{project}\build\reports\tests\test\index.html`

![测试报告][format_png 1]![测试报告][format_png 1]

做完了

## 下载源代码 ##

> $ git clone [https://github.com/mkyong/junit-examples][https_github.com_mkyong_junit-examples]  
> $ cd junit5-gradle  
> $ gradle测试

# 参考文献 #

*  [JUnit 5官方网站][JUnit 5]
 *  [Spring Boot + JUnit 5 + Mockito][Spring Boot _ JUnit 5 _ Mockito]
 *  [Gradle –在Java和JVM项目中进行测试][Gradle _Java_JVM]

标签： [gradle][] [junit 5][junit 5 1] [单元测试][Link 1]

> 翻译自: [https://mkyong.com/gradle/junit-5-gradle-examples/][https_mkyong.com_gradle_junit-5-gradle-examples]

[junit 5]: http://imgconvert.csdnimg.cn/aHR0cHM6Ly9ta3lvbmcuY29tL3dwLWNvbnRlbnQvdXBsb2Fkcy8yMDE5LzA5L2p1bml0NS1sb2dvLnBuZw?x-oss-process=image/format,png
[format_png]: http://imgconvert.csdnimg.cn/aHR0cHM6Ly9ta3lvbmcuY29tL3dwLWNvbnRlbnQvdXBsb2Fkcy8yMDE5LzA5L2dyYWRsZS1qdW5pdDUtcHJvamVjdC5wbmc?x-oss-process=image/format,png
[format_png 1]: http://imgconvert.csdnimg.cn/aHR0cHM6Ly9ta3lvbmcuY29tL3dwLWNvbnRlbnQvdXBsb2Fkcy8yMDE5LzA5L2dyYWRsZS10ZXN0LXJlcG9ydC5wbmc?x-oss-process=image/format,png
[https_github.com_mkyong_junit-examples]: https://github.com/mkyong/junit-examples
[JUnit 5]: https://junit.org/junit5/
[Spring Boot _ JUnit 5 _ Mockito]: https://www.mkyong.com/spring-boot/spring-boot-junit-5-mockito/
[Gradle _Java_JVM]: https://docs.gradle.org/current/userguide/java_testing.html
[gradle]: https://mkyong.com/tag/gradle/
[junit 5 1]: https://mkyong.com/tag/junit-5/
[Link 1]: https://mkyong.com/tag/unit-test/
[https_mkyong.com_gradle_junit-5-gradle-examples]: https://mkyong.com/gradle/junit-5-gradle-examples/