How can I install JUnit 4 on luna eclipse . JUnit 3 working normally , but when I am doing a test with JUnit 4 at lines with annotations displays me 'The method xxx is not API '/
JUNIT LUNA and make sure the jar is in the classpath by looking at the build path.
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I am using junit vintage engine 5 because I would like to slowly migrate from my old test written for junit 3 and junit 4 to the junit 5 standard.
The dependency I am using is junit vintage engine 5.8.2, and no other.
When I run mvn test in the console, it correctly executes all tests in the console.
However, when I attempt to run a single test file from within my Eclipse IDE (latest version), the number of tests executed are 0/0. The run configuation for that file shows that runner junit 5 is used. The tests executed are 0/0.
Is there a way I can make the Eclipse IDE detect my tests again? Thank you!
Could someone please suggest me the required Intellij Idea setup to run a junit test refers to lombok annotations with Java 1.6.
My current setup:-
Intellij Version - 2020.3.3 with built-in lombok plugin
lombok dependency version - 1.16.18
My previous question on the issue:-
lombok annotations are not identified by junit in Intellij
I can build the project with maven but cannot run unit test with Intellij. When I changed to Java 8 and try to run unit tests, lombok error disappeared, but failed since project is not compatible with Java 8.
Therefore I'm looking for the ideal Intellij setup that works for this situation.
Thanks in advance!
I've just upgraded to Eclipse 2018.09 (the problem also occurs on Eclipse Photon), but it doesn't play nicely with a project that uses JUnit 4. The new version appears to run all tests using a JUnit 5 runner by default, which fails with the following errors because I only have JUnit 4 on the project's classpath, not JUnit 5:
java.lang.NoClassDefFoundError: org/junit/platform/engine/EngineExecutionListener
at org.junit.platform.launcher.core.LauncherFactory.create(LauncherFactory.java:59)
at org.eclipse.jdt.internal.junit5.runner.JUnit5TestLoader.<init>(JUnit5TestLoader.java:34)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at java.lang.Class.newInstance(Class.java:442)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.createRawTestLoader(RemoteTestRunner.java:370)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.createLoader(RemoteTestRunner.java:365)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.defaultInit(RemoteTestRunner.java:309)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.init(RemoteTestRunner.java:224)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:208)
Caused by: java.lang.ClassNotFoundException: org.junit.platform.engine.EngineExecutionListener
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:335)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 12 more
I want to be able to conveniently run my tests in this project without upgrading to a new major version of JUnit with a workaround I don't have to constantly repeat. I'm thinking that this will require somehow changing the default test runner.
Workarounds I've discovered, and why I'm not satisfied by them:
Manually update every run configuration for every test to use the JUnit 4 runner. I'm not satisfied with this because it's annoying and a lot of work. I cannot find a way to change the JUnit run configuration defaults to always use the JUnit 4 runner. There's some promising-seeming stuff about "prototype" run configurations, but all the options are greyed-out and nonfunctional for JUnit configurations.
Add JUnit 5 to the classpath. This allows the JUnit 5 runner to work, but I'm not satisfied with this because I shouldn't be forced to upgrade on account of my IDE.
Eclipse Photon version info:
Eclipse Java EE IDE for Web Developers.
Version: Photon Release (4.8.0)
Build id: 20180619-1200
OS: Windows 7, v.6.1, x86_64 / win32
Java version: 1.8.0_171
"Check for Updates" shows no relevant packages to install.
Eclipse 2018.09 version info:
Eclipse Java EE IDE for Web Developers.
Version: 2018-09 (4.9.0)
Build id: 20180917-1800
OS: Windows 7, v.6.1, x86_64 / win32
Java version: 1.8.0_171
I also stumbled upon this issue today. It seems that eclipse uses the JUnit 5 runner by default if JUnit 5 dependencies are found on the classpath.
In case of my maven project, investigating the dependency hierarchy showed that actually both JUnit 4 and JUnit 5 dependencies were on the classpath. JUnit 4 as the test dependency I added myself, JUnit 5 as a transitive dependency which I inherited from another library I relied upon. After excluding JUnit 5 from that dependency, eclipse again uses the JUnit 4 runner by default.
Maybe you could check if your project also has an unwanted dependency to JUnit 5 you are not aware of?
In my case the project was created with Spring Initializr and it had automatically added the following exclusion to the spring-boot-starter-test dependency:
<exclusion>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
</exclusion>
Removing it fixed the problem for me.
I faced the same issue now, and got it fixed after adding the Vintage Engine dependency in the POM.xml file. Try it out.
MVN Repository:
https://mvnrepository.com/artifact/org.junit.vintage/junit-vintage-engine
The exclusive addition of JUnit 5 by the Spring initializer was the cause of my issues....commented out this from the pom.xml
I am trying to migrate test files from Junit 4 to Junit 5
using IntelliJ refactor code -> migrate -> junit 4 to junit 5.
But it only run import optimization and show all unit tests in the project and ask yes or no on refactoring and nothing happens when I chose do refactor.
any one know on another migration tool / plug in or a way to make the migration work ?
Jeanne Boyarsky created a tool to convert JUnit 4 based tests to JUnit Jupiter.
You can find it in her GitHub account: https://github.com/boyarsky/convert-junit4-to-junit5
Use openrewrite:
mvn org.openrewrite.maven:rewrite-maven-plugin:4.36.0:run -Drewrite.recipeArtifactCoordinates=org.openrewrite.recipe:rewrite-testing-frameworks:1.28.0 -Drewrite.activeRecipes=org.openrewrite.java.testing.junit5.JUnit5BestPractices
which migrates automatically from JUnit 4 to JUnit 5 without modifying your code style.
It seems that converting test from JUnit 4 to JUnit 5 in IntelliJ 2017.3 is not complete. As suggested by Sam Brannen there is a small application on Github called convert-junit4-to-junit5 that can do the job.
Just clone the Github repo and build the software using Maven mvn clean package. Then run the the application using
java -jar \
<path-to-your-cloned-repo>/convert-junit4-to-junit5/target/convert-junit4-to-to-junit5-0.0.1-SNAPSHOT.jar \
<path to where your JUnit 4 tests are located>
For further instruction please read the projects documentation.
Just reformatted my PC and trying to get my JUnit tests to work on eclipse.
When I right click my project > Build Path > Add Libraries, and select JUnit 4 (or 3), it says
Source Location: Not found.
A few things came up on google but it was suggesting I edit files that I don't have in my eclipse configuration folder, so assume it's to do with older versions.
You might have to reinstall the junit plugin.