JUnit 5 对 Java 运行环境的最低要求是 Java 8。
IntelliJ IDEA支持自2016.2之后支持junit5。
推荐使用IDEA 2017.3或之后的版本。
各idea版本和支持的junit5版本对照：
junit5常用注解：
JUnit 5 提供了三种不同的方式来执行测试用例，分别是通过 Gradle 插件、Maven 插件和命令行来运行。
1.基于Gradle
新建build.gradle 文件，文件和pom文件同一级，文件内容：
buildscript {
repositories {
mavenCentral()
}
dependencies {
classpath’org.junit.platform:junit-platform-gradle-plugin:1.0.2′
}
}
repositories {
mavenCentral()
}
ext.junit4Version =’4.12′
ext.junitVintageVersion =’4.12.2′
ext.junitPlatformVersion =’1.0.2′
ext.junitJupiterVersion =’5.0.2′
ext.log4jVersion =’2.9.0′
applyplugin:’java’
applyplugin:’eclipse’
applyplugin:’idea’
applyplugin:’org.junit.platform.gradle.plugin’
jar {
baseName =’junit5-gradle-consumer’
version =’1.0.0-SNAPSHOT’
}
compileTestJava {
sourceCompatibility =1.8
targetCompatibility =1.8
options.compilerArgs +=’-parameters’
}
junitPlatform {
// platformVersion ‘1.0.2’
filters {
engines {
// include ‘junit-jupiter’, ‘junit-vintage’
// exclude ‘custom-engine’
}
tags {
// include ‘fast’
exclude’slow’
}
// includeClassNamePattern ‘.*Test’
}
// configurationParameter ‘junit.jupiter.conditions.deactivate’, ‘*’
// enableStandardTestTask true
// reportsDir file(‘build/test-results/junit-platform’) // this is the default
logManager’org.apache.logging.log4j.jul.LogManager’
}
dependencies {
// JUnit Jupiter API and TestEngine implementation
testCompile(“org.junit.jupiter:junit-jupiter-api:${junitJupiterVersion}”)
testRuntime(“org.junit.jupiter:junit-jupiter-engine:${junitJupiterVersion}”)
// If you also want to support JUnit 3 and JUnit 4 tests
testCompile(“junit:junit:${junit4Version}”)
testRuntime(“org.junit.vintage:junit-vintage-engine:${junitVintageVersion}”)
// To avoid compiler warnings about @API annotations in JUnit code
testCompileOnly(‘org.apiguardian:apiguardian-api:1.0.0’)
// To use Log4J’s LogManager
testRuntime(“org.apache.logging.log4j:log4j-core:${log4jVersion}”)
testRuntime(“org.apache.logging.log4j:log4j-jul:${log4jVersion}”)
// Only needed to run tests in an (IntelliJ) IDE(A) that bundles an older version
testRuntime(“org.junit.platform:junit-platform-launcher:${junitPlatformVersion}”)
}
task wrapper(type: Wrapper) {
description =’Generates gradlew[.bat] scripts’
gradleVersion =’4.3.1′
}
基于maven
pom文件添加：
传的图片，复制代码编辑器粘贴不上，真是醉醉的
写个测试类
import org.junit.jupiter.api.AfterAll;
import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.BeforeAll;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Disabled;
import org.junit.jupiter.api.DisplayName;
import org.junit.jupiter.api.Test;
public class JUnit5UserRepositoryImplFileTest {
@BeforeAll
static void setup() {
// Initialize connection to file.
System.out.println(“@BeforeAll – Execute once before all test methods in this class.”);
}
@BeforeEach
void init() {
// Insert some sample data before each test
System.out.println(“@BeforeEach – Executed before each test method in this class.”);
}
@DisplayName(“Test add user successfully.”)
@Test
void testAddUserSuccess() {
System.out.println(“Test add user successfully”);
}
@DisplayName(“Test add user with passed argument is null.”)
@Test
void testAddUserNull() {
System.out.println(“Test add null user.”);
}
@Test
@Disabled(“Not implemented yet.”)
void testDeleteUser() {}
@AfterEach
void tearDown() {
// Reset the file content.
System.out.println(“@AfterEach – This method is called after each test method.”);
}
@AfterAll
static void done() {
// Closes connection to the file
System.out.println(“@AfterAll – This method is called after all test methods.”);
}
}
运行JUnit 5测试
使用Maven运行JUnit 5测试
mvn test
用Gradle运行JUnit 5测试
gradle test
用idea运行JUnit 5测试
IntelliJ默认支持JUnit 5。因此，在IntelliJ上运行JUnit 5非常简单，只需右键单击 – >运行或Ctrl-Shift-F10
