maven安装junit

JUnit 4 and JUnit 5 are completely different frameworks. They both serve the same purpose, but the JUnit 5 is a completely different testing framework written from scratch. It’s not using anything from JUnit 4 APIs.

JUnit 4和JUnit 5是完全不同的框架。 它们的目的相同，但是JUnit 5是完全不同的测试框架。 它没有使用JUnit 4 API中的任何东西。

Here we will look into how to setup JUnit 4 and JUnit 5 in our maven projects.

在这里，我们将研究如何在maven项目中设置JUnit 4和JUnit 5 。

JUnit Maven依赖关系 (JUnit Maven Dependencies)

If you want to use JUnit 4, then you need a single dependency as below.

如果要使用JUnit 4，则需要一个依赖项，如下所示。

<dependency><groupId>junit</groupId><artifactId>junit</artifactId><version>4.12</version><scope>test</scope>
</dependency>

JUnit 5 is divided into several modules, you need at least JUnit Platform and JUnit Jupiter to write tests in JUnit 5. Also, note that JUnit 5 requires Java 8 or higher versions.

JUnit 5分为几个模块，您至少需要JUnit Platform和JUnit Jupiter才能在JUnit 5中编写测试。此外，请注意，JUnit 5需要Java 8或更高版本。

<dependency><groupId>org.junit.jupiter</groupId><artifactId>junit-jupiter-engine</artifactId><version>5.2.0</version><scope>test</scope>
</dependency>
<dependency><groupId>org.junit.platform</groupId><artifactId>junit-platform-runner</artifactId><version>1.2.0</version><scope>test</scope>
</dependency>

If you want to run parameterized tests, then you need to add an additional dependency.

如果要运行参数化测试 ，则需要添加其他依赖项。

<dependency><groupId>org.junit.jupiter</groupId><artifactId>junit-jupiter-params</artifactId><version>5.2.0</version><scope>test</scope>
</dependency>

Maven构建期间的JUnit测试 (JUnit Tests During Maven Build)

If you want the tests to be executed during the maven build, you will have to configure maven-surefire-plugin plugin in your pom.xml file.

如果要在maven构建期间执行测试，则必须在pom.xml文件中配置maven-surefire-plugin插件。

JUnit 4:

JUnit 4 ：

<build><plugins><plugin><groupId>org.apache.maven.plugins</groupId><artifactId>maven-surefire-plugin</artifactId><version>2.22.0</version><dependencies><dependency><groupId>org.apache.maven.surefire</groupId><artifactId>surefire-junit4</artifactId><version>2.22.0</version></dependency></dependencies><configuration><includes><include>**/*.java</include></includes></configuration></plugin></plugins>
</build>

JUnit 5:

JUnit 5 ：

<build><plugins><plugin><groupId>org.apache.maven.plugins</groupId><artifactId>maven-surefire-plugin</artifactId><version>2.22.0</version><dependencies><dependency><groupId>org.junit.platform</groupId><artifactId>junit-platform-surefire-provider</artifactId><version>1.2.0</version></dependency></dependencies><configuration><additionalClasspathElements><additionalClasspathElement>src/test/java/</additionalClasspathElement></additionalClasspathElements></configuration></plugin></plugins>
</build>

JUnit HTML报告 (JUnit HTML Reports)

Maven surefire plugin generates text and XML reports, we can generate HTML based reports using maven-surefire-report-plugin. Below configuration works for both JUnit 4 and JUnit 5.

Maven surefire插件生成文本和XML报告，我们可以使用maven-surefire-report-plugin生成基于HTML的报告。 以下配置适用于JUnit 4和JUnit 5。

<reporting><plugins><plugin><groupId>org.apache.maven.plugins</groupId><artifactId>maven-surefire-report-plugin</artifactId><version>2.22.0</version></plugin></plugins>
</reporting>

Just run mvn site command and the HTML report will be generated in the target/site/ directory.

只需运行mvn site命令，HTML报告将在target/site/目录中生成。

That’s all for a quick roundup of JUnit setup for maven projects.

这就是为Maven项目快速汇总JUnit设置的全部内容。

翻译自: https://www.journaldev.com/21711/junit-setup-maven

maven安装junit