Surefire is not picking up Junit 5 tests

Question

The maven-surefire-plugin, as of today, does not have full support of JUnit 5. There is an open issue about adding this support in SUREFIRE-1206.

As such, you need to use a custom provider. One has already been developed by the JUnit team; from the user guide, you need to add the junit-platform-surefire-provider provider and the TestEngine implementation for the new API:

<build>
  <plugins>        
    <plugin>
      <artifactId>maven-surefire-plugin</artifactId>
      <!-- latest version (2.20.1) does not work well with JUnit5 -->
      <version>2.19.1</version>
      <dependencies>
        <dependency>
          <groupId>org.junit.platform</groupId>
          <artifactId>junit-platform-surefire-provider</artifactId>
          <version>1.0.3</version>
        </dependency>
        <dependency>
          <groupId>org.junit.jupiter</groupId>
          <artifactId>junit-jupiter-engine</artifactId>
          <version>5.0.3</version>
        </dependency>
      </dependencies>
    </plugin>
  </plugins>
</build>

Also, be sure to declare the junit-jupiter-api dependency with a scope of test:

<dependencies>
  <dependency>
    <groupId>org.junit.jupiter</groupId>
    <artifactId>junit-jupiter-api</artifactId>
    <version>5.0.3</version>
    <scope>test</scope>
  </dependency>
</dependencies>

Update 2

Issue has been fixed in Maven Surefire Plugin v2.22.0

New version is available at Maven Central Repository.

Maven

<dependency>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-surefire-plugin</artifactId>
    <version>2.22.0</version>
</dependency>

Gradle

compile group: 'org.apache.maven.plugins', name: 'maven-surefire-plugin', version: '2.22.0'

---

Update

As Marian pointed out, the latest version of JUnit 5 Platform Surefire Provider (1.2.0) supports latest version of Maven Surefire Plugin (2.21.0):

        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-surefire-plugin</artifactId>
            <version>2.21.0</version>
            <dependencies>
                <dependency>
                    <groupId>org.junit.platform</groupId>
                    <artifactId>junit-platform-surefire-provider</artifactId>
                    <version>1.2.0</version>
                </dependency>
            </dependencies>
        </plugin>

---

Example

pom.xml

<dependencies>
    <dependency>
        <groupId>org.junit.jupiter</groupId>
        <artifactId>junit-jupiter-engine</artifactId>
        <version>5.2.0</version>
        <scope>test</scope>
    </dependency>
</dependencies>

<build>
    <plugins>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-surefire-plugin</artifactId>
            <version>2.21.0</version>
            <dependencies>
                <dependency>
                    <groupId>org.junit.platform</groupId>
                    <artifactId>junit-platform-surefire-provider</artifactId>
                    <version>1.2.0</version>
                </dependency>
            </dependencies>
        </plugin>
    </plugins>
</build>

TestScenario.java

package test;

import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.DisplayName;
import org.junit.jupiter.api.Test;

public class TestScenario {

    @Test
    @DisplayName("Test 2 + 2 = 4")
    public void test() {
        Assertions.assertEquals(4, 2 + 2);
    }
}

Output (mvn clean install)

...
[INFO] --- maven-surefire-plugin:2.21.0:test (default-test) @ test --- [INFO]
[INFO] -------------------------------------------------------
[INFO] T E S T S
[INFO] -------------------------------------------------------
[INFO] Running test.TestScenario
[INFO] Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.005 s - in test.TestScenario
[INFO]
[INFO] Results:
[INFO]
[INFO] Tests run: 1, Failures: 0, Errors: 0, Skipped: 0
...

---

Simplest way till today:

    <plugin>
        <artifactId>maven-surefire-plugin</artifactId>
        <version>2.19.1</version>
        <dependencies>
            <dependency>
                <groupId>org.junit.platform</groupId>
                <artifactId>junit-platform-surefire-provider</artifactId>
                <version>1.1.0</version>
            </dependency>
        </dependencies>
    </plugin>

From the JUnit 5 documentation :

Starting with version 2.22.0, Maven Surefire provides native support for executing tests on the JUnit Platform.

Additionally you can read in the maven-surefire-plugin documentation :

Using JUnit 5 Platform

To get started with JUnit Platform, you need to add at least a single TestEngine implementation to your project. For example, if you want to write tests with Jupiter, add the test artifact junit-jupiter-engine to the dependencies in POM

So just that is enough to make run JUnit 5 tests :

<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>davidxxx</groupId>
    <artifactId>minimal-pom-junit5</artifactId>
    <version>0.0.1-SNAPSHOT</version>

    <properties>
        <junit-jupiter.version>5.2.0</junit-jupiter.version> 
        <!--optional below but good practice to specify our java version-->
        <maven.compiler.source>1.8</maven.compiler.source>
        <maven.compiler.target>1.8</maven.compiler.target>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.junit.jupiter</groupId>
            <artifactId>junit-jupiter-engine</artifactId>
            <version>${junit-jupiter.version}</version>
            <scope>test</scope>
        </dependency>

        <!--optional below -->
        <!-- add any JUnit extension you need such as -->
        <dependency>
            <groupId>org.junit.jupiter</groupId>
            <artifactId>junit-jupiter-params</artifactId>
            <version>${junit-jupiter.version}</version>
            <scope>test</scope>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <artifactId>maven-surefire-plugin</artifactId>
                <version>2.22.0</version>
            </plugin>
        </plugins>
    </build>

</project>

On my GitHub space I added a working sample maven project that you can browse/clone.
URL: https://github.com/ebundy/junit5-minimal-maven-project

I encountered the same problem in August 2019 which I asked about here: Maven silently fails to find JUnit tests to run. These answers led me in the right direction, but I found that you can solve the problem even more concisely. I copied my solution from the JUnit5 sample Maven project.

As of JUnit 5.5.1 and maven-surefire-plugin 2.22.2, you do not need to add the junit-platform-surefire-provider dependency. It is enough to have this one dependency and one plugin specified in your pom.xml:

<dependencies>
    <dependency>
        <groupId>org.junit.jupiter</groupId>
        <artifactId>junit-jupiter</artifactId>
        <version>5.5.1</version>
        <scope>test</scope>
    </dependency>
</dependencies>

<build>
    <plugins>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-surefire-plugin</artifactId>
            <version>2.22.2</version>
        </plugin>
    </plugins>
</build>