'Maven not running JUnit 5 tests
I'm trying to get a simple junit test running with maven but it is not detecting any tests. Where am I going wrong? The project directory
Project -> src -> test-> java -> MyTest.java
Results :
Tests run: 0, Failures: 0, Errors: 0, Skipped: 0
pom.xml
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.buildproftest.ecs</groupId>
<artifactId>buildprofiletest</artifactId>
<version>1.0-SNAPSHOT</version>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter-api</artifactId>
<version>5.3.1</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.0</version>
<configuration>
<debug>false</debug>
<optimize>true</optimize>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
</plugins>
</build>
</project>
Junit test case
import org.junit.jupiter.api.Test;
public class MyTest {
@Test
public void printTest() {
System.out.println("Running JUNIT test");
}
}
The response is that there are no test cases to run.
Solution 1:[1]
According to the annotation (import org.junit.jupiter.api.Test
), you are trying to run JUnit 5 tests with Maven. According to the documentation, you have to add this dependency:
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter-engine</artifactId>
<version>5.3.1</version>
<scope>test</scope>
</dependency>
Your version of Maven comes with a version of maven-surefire-plugin
which does not support JUnit 5. You could update your Maven to the latest version. You could also set the version of the maven-surefire-plugin
:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<!-- JUnit 5 requires Surefire version 2.22.0 or higher -->
<version>2.22.0</version>
</plugin>
See the junit5-samples for this information.
See the Maven Surefire Plugin artifact in a Maven repository. At version 3.0.0-M3
as of 2019-01.
Solution 2:[2]
junit-jupiter
— the simpler archetype for JUnit 5
The Answer by LaurentG seems to be correct, but a bit outdated.
As of JUnit 5.4, you can replace those multiple Maven artifacts:
junit
junit-jupiter-api
junit-jupiter-engine
…with a single artifact:
…to run JUnit 5 tests.
This new artifact is a aggregate of other artifacts, a convenient wrapper to simplify your POM file.
<dependencies>
<!-- https://mvnrepository.com/artifact/org.junit.jupiter/junit-jupiter -->
<!-- Provides everything you need to write JUnit 5 Jupiter tests. -->
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter</artifactId>
<version>5.7.0-M1</version>
<scope>test</scope>
</dependency>
</dependencies>
This gives you all you need to write and run JUnit 5 Jupiter tests.
junit-vintage-engine
for JUnit 3 & 4 tests
If you have old JUnit 3 or JUnit 4 legacy tests that you want to continue to run, add a second dependency, junit-vintage-engine
.
<dependencies>
<!-- https://mvnrepository.com/artifact/org.junit.jupiter/junit-jupiter -->
<!-- Provides everything you need to write JUnit 5 Jupiter tests. -->
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter</artifactId>
<version>5.7.0-M1</version>
<scope>test</scope>
</dependency>
<!-- https://mvnrepository.com/artifact/org.junit.vintage/junit-vintage-engine -->
<!-- Enables any legacy JUnit 3 and JUnit 4 tests you may have. Not needed for JUnit 5 tests. -->
<dependency>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
<version>5.7.0-M1</version>
<scope>test</scope>
</dependency>
</dependencies>
maven-surefire-plugin
You would also need the Surefire plugin as shown in that other Answer. Be sure to get the latest version, as Surefire has had some important fixes/enhancements recently. Currently at version 3.0.0-M5.
Solution 3:[3]
- I was having a similar problem where the junit
@Test
annotation would work but not the org.junit.jupiter.api.Test@Test
annotation.
The solution:
THIS is mavens official guide on how to confugure the
maven-surefire-plugin
and make sure that is uses the properjunit-jupiter-engine
The guide is a little confusing so, this is how I got it to work
1) add the engine dependency to the dependencies block:
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter-engine</artifactId>
<version>5.6.2</version>
<scope>test</scope>
</dependency>
2) add the engine dependency to maven-surefire:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>3.0.0-M6</version>
<dependencies>
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter-engine</artifactId>
<version>5.6.2</version>
</dependency>
</dependencies>
</plugin>
Solution 4:[4]
Add "include" in configuration section for maven surfire, your test should end with Test.java and it should work
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>3.0.0-M5</version>
<configuration>
<includes>
<include>**/*Test.java</include>
</includes>
</configuration>
Solution 5:[5]
I recently discovered that I had to add the prefix "test" on my tests methods in order to get my tests executed by maven.
@Test
public void testStringsAreEqual() {
var aString = "Walrus Code";
Assertions.assertEquals(aString, "Walrus Code");
}
Otherwise the tests are ignored... This is part of my pom:
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.1</version>
<configuration>
<source>11</source>
<target>11</target>
</configuration>
</plugin>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>exec-maven-plugin</artifactId>
<version>3.0.0</version>
<configuration>
<mainClass>com.myapp.Main</mainClass>
</configuration>
</plugin>
</plugins>
</build>
<dependencies>
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter</artifactId>
<version>5.7.1</version>
<scope>test</scope>
</dependency>
</dependencies>
Solution 6:[6]
In my case, on top of the accepted answer with 2 changes (maven-surefire plugin version and artifacts of org.junit.jupiter), I had to add one more change. (Java version used: 11)
Even though org.jacoco.agent was a part of my dependencies list, it needed to be added within < dependencyManagement > tag as well. This seemed to have resolved any underlying version/enforced the dependency automatically.
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.jacoco</groupId>
<artifactId>org.jacoco.agent</artifactId>
<version>${jacoco.version}</version>
<classifier>runtime</classifier>
<scope>test</scope>
</dependency>
</dependencies>
</dependencyManagement>
Sources
This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.
Source: Stack Overflow
Solution | Source |
---|---|
Solution 1 | Basil Bourque |
Solution 2 | |
Solution 3 | Tristan Elliott |
Solution 4 | Milicko |
Solution 5 | Codigo Morsa |
Solution 6 | VinjaNinja |