If you are experiencing the "Failed to Discover Tests" error when trying to run JUnit Vintage on TestEngine ID, don't worry, you are not alone. This error can be frustrating, but fortunately, there is a solution. In this guide, we will walk you through the steps to troubleshoot and fix this error.
Prerequisites
Before we begin, make sure that you have the following installed:
- JUnit 5
- JUnit Vintage
- TestEngine ID
Step 1: Check Your Dependencies
First, make sure that you have the correct dependencies installed. In your pom.xml file, check that you have the following dependencies:
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter-engine</artifactId>
<version>5.7.0</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
<version>5.7.0</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.junit.platform</groupId>
<artifactId>junit-platform-launcher</artifactId>
<version>1.7.0</version>
<scope>test</scope>
</dependency>
If any of these dependencies are missing, add them to your pom.xml file.
Step 2: Update Your IDE
If you are using an older version of your IDE, try updating to the latest version. Sometimes, outdated IDEs can cause compatibility issues with JUnit Vintage.
Step 3: Disable JUnit 5
If you are still experiencing the error, try disabling JUnit 5. To do this, add the following line to your pom.xml file:
<exclude>**/Test*.java</exclude>
This will exclude all files that contain "Test" in their name and prevent JUnit 5 from running.
Step 4: Clean and Rebuild
If none of the above steps work, try cleaning and rebuilding your project. This will often fix any issues caused by incorrect dependencies or outdated IDEs.
FAQ
Q1. What is JUnit Vintage?
JUnit Vintage is a JUnit 5 extension that allows you to run JUnit 3 and JUnit 4 tests on the JUnit 5 platform.
Q2. Why am I getting the "Failed to Discover Tests" error?
This error occurs when JUnit Vintage is unable to find any tests in your project.
Q3. Can I use JUnit Vintage with other TestEngines?
Yes, JUnit Vintage can be used with any TestEngine that is compatible with JUnit 5.
Q4. Is JUnit Vintage still supported?
Yes, JUnit Vintage is still supported and is included in the latest version of JUnit 5.
Q5. What is the difference between JUnit Vintage and JUnit Jupiter?
JUnit Vintage is an extension that allows you to run JUnit 3 and JUnit 4 tests on the JUnit 5 platform. JUnit Jupiter is the next generation of JUnit and provides new features and improvements over JUnit 4.