如何在Gradle中使用JUnit 5？ [英] How to use JUnit 5 with Gradle?
问题描述
预期结果：JUnit 4中，我使用JUnit 5和Gradle进行了一次JUnit 4测试。测试在输出中给出了一个很好的通过，并在 build / reports / tests 中给出了一个html报告。 strong>实际结果：下面的JUnit 5测试不会输出除（...）构建成功之外的任何内容，而我知道测试并未实际运行因为没有测试日志输出通过/跳过/失败，并且在测试中放置失败可以使构建成功。
运行 gradle test --info 产生跳过任务'：testClasses'，因为它没有任何动作。很多我认为大多数不相关的输出。
令人惊讶的是，它还表示执行任务'：test'和生成HTML测试报告...完成生成测试html结果以及类似于 build / test-results / test 中的xml，而未生成xml，则html显示没有运行测试并且没有错误，并且测试确实没有运行。
我也觉得很有趣，是 gradle test --debug 产生
[TestEventLogger] Gradle测试运行：test STARTED
[org.gradle.api.internal.tasks.testing.junit .JUnitDetector] test-class-
扫描：无法扫描父类java / lang / Object，找不到类文件
[TestEventLogger]
[TestEventLogger] Gradle测试运行：test PASSED
而我唯一的测试包含
失败（测试失败）;
我认为这很奇怪！
我的构建文件是
apply plugin：'java'
test {
dependsOn 'cleanTest'//每次运行测试
}
sourceSets {
main {
java {
srcDirs'src'
test {
java {
srcDirs'test'
}
}
}
存储库{
mavenCentral（）
}
依赖关系{
//使用它时，它使用junit 4 test
// testCompile' junit：junit：4.10'
//这是junit 5需要的（自从IJ 2017.1.2
testCompile（org.junit.jupiter：junit-jupiter-api：5.0。 0-M4）
}
测试{
testLogging {
事件通过，跳过，失败
}
}
我的测试是
p ackage mypackage;
import org.junit.jupiter.api.Test;
import static org.junit.jupiter.api.Assertions.assertEquals;
public class HelloWorldTest {
@Test
public void testHelloWorld（）{
assertEquals（2，1 + 1，message）;
我的文件夹结构是使用包 mypackage ， java-template-project
--- src
--- mypackage
--- HelloWorld.java
---测试
--- mypackage
--- HelloWorldTest.java
和我在使用的IntelliJ 2017.1.3中，模块结构看起来像这样
java-template-project
--- java-template-project_main
--- src / mypackage
--- HelloWorld（。 java）
--- java-template-project_test
--- test / mypackage
--- HelloWorldTest（.java）
因为Gradle现在希望在他们自己的包中使用源代码和测试。
/ strong>
显然这不是关于这个话题的第一个问题，我发现的所有相关问题都是
- 但是正如你所看到的，这是针对老版本的IntelliJ，我已经根据其中一个答案在IJ 2016.3.3及更高版本中使用了语法，在一个JUnit依赖行中，这应该没问题。
-
使用gradle从intellij从JUnit 4升级到JUnit 5
链接回到上面的问题，并链接到 Jetbrains博客，它使用与上面的问题。也链接到：
-
将JUnit 5测试结果与Intellij测试报告集成在一起
这个在问题中显示为依赖关系也是
testRuntime（org.junit.vintage：junit-vintage-engine：5.0.0-M1）
解释在为什么在IntelliJ中运行TestCase时，JUnit Jupiter和JUnit Vintage会分开？
当我运行它时，输出显示它找不到版本，但根据 Maven Repository 这个是针对JUnit 5的：
testRuntime（org.junit.vintage：junit-vintage-engine：4.12.0- M4）
这里的答案指出，您可以在IntelliJ中运行测试，因为更高版本具有JUnit 5支持。我知道，当我从IntelliJ内运行时，测试运行良好。但我想使用Gradle（和Travis，它需要依赖管理）。 如何在junit 5 gradle test report中捕获stdout / stderr？
我试过使用
testCompile（org.junit.platform：junit-platform-gradle-plugin： 1.0.0-M3）
testCompile（org.junit.jupiter：junit-jupiter-engine：5.0.0-M3）
但结果没有变化。
我的模板项目位于 https://github.com/PHPirates/java-template-project ，但这个问题应该包含所有必要的信息。
解决方案您需要两种JUnit版本的引擎，并且您需要应用JUnit平台Gradle插入。我没有在你的gradle文件中看到。这是执行JUnit 4和5的工作gradle构建：
buildscript {
repositories {
mavenCentral （）
}
依赖关系{
classpath（org.junit.platform：junit-platform-gradle-plugin：1.0.0-M4）
}
}
apply plugin：'org.junit.platform.gradle.plugin'
...
依赖关系{
...
testCompile（junit：junit：4.12）
testRuntime（org.junit.vintage：junit-vintage-engine：4.12.0-M4）
testCompile（org。 junit.jupiter：junit-jupiter-api：5.0.0-M4）
testRuntime（org.junit.jupiter：junit-jupiter-engine：5.0.0-M4）
//在IDE中使用JUnitPlatform Runner
testCompile（org.junit.platform：junit-platform-runner：1.0.0-M4）
}
junitPlatform {
details'tree'
}
请参阅 JUnit doc 可以获得更多的信息。
I am trying to use JUnit 5 with Gradle after I succeeded in running a JUnit 4 test.
Expected result: Tthe JUnit 4 test gave a nice 'passed' in the output and an html report in build/reports/tests.
Actual result: The JUnit 5 test as below does not output anything besides (...) build succesful, while I know the test is not actually run since there is no test log output passed/skipped/failed, and putting a fail in the test keeps the build successful.
Running gradle test --info yields Skipping task ':testClasses' as it has no actions. among a lot of I think mostly unrelevant output.
Surprisingly, it also says Executing task ':test' and Generating HTML test report... Finished generating test html results and similar for the xml in build/test-results/test, while the xml is not generated, the html shows no tests run and no errors, and the test is indeed not run.
What I also think very interesting, is that gradle test --debug yields
[TestEventLogger] Gradle Test Run :test STARTED
[org.gradle.api.internal.tasks.testing.junit.JUnitDetector] test-class-
scan : failed to scan parent class java/lang/Object, could not find the class file
[TestEventLogger]
[TestEventLogger] Gradle Test Run :test PASSED
while my only test contains
fail("test fails");
which I think is very strange!
My build file is
apply plugin: 'java'
test {
dependsOn 'cleanTest' // run tests every time
}
sourceSets {
main {
java {
srcDirs 'src'
}
}
test {
java {
srcDirs 'test'
}
}
}
repositories {
mavenCentral()
}
dependencies {
// when using this, it worked with a junit 4 test
// testCompile 'junit:junit:4.10'
// this should be needed for junit 5 (using M4 is required since IJ 2017.1.2
testCompile("org.junit.jupiter:junit-jupiter-api:5.0.0-M4")
}
test {
testLogging {
events "passed", "skipped", "failed"
}
}
My test is
package mypackage;
import org.junit.jupiter.api.Test;
import static org.junit.jupiter.api.Assertions.assertEquals;
public class HelloWorldTest {
@Test
public void testHelloWorld(){
assertEquals(2, 1+1, "message");
}
}
My folder structure is, using package mypackage,
java-template-project
--- src
--- mypackage
--- HelloWorld.java
--- test
--- mypackage
--- HelloWorldTest.java
and in IntelliJ 2017.1.3, which I am using, the module structure looks like this
java-template-project
--- java-template-project_main
--- src/mypackage
--- HelloWorld(.java)
--- java-template-project_test
--- test/mypackage
--- HelloWorldTest(.java)
because Gradle nowadays wants the source and tests in their own package.
What I tried
Obviously this is not the first question about this topic, all the relevant questions I found are
Gradle project running jUnit 5 tests in IntelliJ
But as you can see this is for older versions of IntelliJ, and I am already using the syntax for IJ 2016.3.3 and higher according to one of the answers, in in the one JUnit dependency line, so that should be okay.
Upgrade from JUnit 4 to JUnit 5 in intellij with gradle
Links back to above question, and links to this Jetbrains blog which uses the same line as above question. Also links to:
Integrate JUnit 5 tests results with Intellij test report
This one shows, in the question, as dependency also
testRuntime("org.junit.vintage:junit-vintage-engine:5.0.0-M1")
which is explained in Why were JUnit Jupiter and JUnit Vintage separated When I Running TestCase in IntelliJ?
Well, when I ran it, the output showed it couldn't find this version but according to the Maven Repository this one is for JUnit 5:
testRuntime("org.junit.vintage:junit-vintage-engine:4.12.0-M4")
The answers there note that you can just run the tests within IntelliJ since the later versions have JUnit 5 support. I know, and the test runs fine when I run from within IntelliJ. But I want to use Gradle (and Travis, which needs dependency management).
How to capture stdout/stderr in junit 5 gradle test report?
I tried using
testCompile("org.junit.platform:junit-platform-gradle-plugin:1.0.0-M3")
testCompile("org.junit.jupiter:junit-jupiter-engine:5.0.0-M3")
but results didn't change.
My template project is located on https://github.com/PHPirates/java-template-project but this question should contain all information necessary.
解决方案 You need the engines for both JUnit versions, and you need to apply the JUnit platform gradle plugin. I do not see that in your gradle file. Here is a working gradle build executing both JUnit 4 and 5:
buildscript {
repositories {
mavenCentral()
}
dependencies {
classpath ("org.junit.platform:junit-platform-gradle-plugin:1.0.0-M4")
}
}
apply plugin: 'org.junit.platform.gradle.plugin'
...
dependencies {
...
testCompile("junit:junit:4.12")
testRuntime("org.junit.vintage:junit-vintage-engine:4.12.0-M4")
testCompile("org.junit.jupiter:junit-jupiter-api:5.0.0-M4")
testRuntime("org.junit.jupiter:junit-jupiter-engine:5.0.0-M4")
// Enable use of the JUnitPlatform Runner within the IDE
testCompile("org.junit.platform:junit-platform-runner:1.0.0-M4")
}
junitPlatform {
details 'tree'
}
See the JUnit doc form more information on that.
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