Sprint Boot Junit5 Test fails to run - spring-boot

Question

I had a test to test access to db in a spring boot app, which was written for Junit 4.
I changed this test to Junit 5. With the following additions to my pom.xml.
<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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.5.1</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.example</groupId>
<artifactId>funnel-backend</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>funnel-backend</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>1.8</java.version>
<junit.jupiter.version>5.5.2</junit.jupiter.version>
<junit.platform.version>1.5.2</junit.platform.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.mariadb.jdbc</groupId>
<artifactId>mariadb-java-client</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
<exclusions>
<exclusion>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter-engine</artifactId>
<version>${junit.jupiter.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.junit.platform</groupId>
<artifactId>junit-platform-runner</artifactId>
<version>${junit.platform.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.google.code.gson</groupId>
<artifactId>gson</artifactId>
<version>2.8.7</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-webflux</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
The test itself is fairly simple
#SpringBootTest
#ExtendWith(SpringExtension.class)
public class UserDataTest {
#Autowired
UserDataRepository repository;
#Test
void testAddAnswers() {
UserData data = new UserFunnelData(1L);
data.addData("SomeData",true);
repository.save(data);
Optional<UserData> lookup = repository.findById(1L);
assertTrue(lookup.isPresent());
assertEquals("SomeData", lookup.get().getData());
repository.deleteById(1L);//Cleaning up.
}
}
When I try and run this intellij, i don't see anything on the console. Just the message poping up "Failed to run". I know this isn't a lot to go on. I would appreciate any pointers or suggestions on how to attack this.

Answer 1

You have spring boot 2.5, which already includes jupiter. The exclusions of junit that you have in your pom file is required for older versions.
Most developers use the spring-boot-starter-test “Starter”, which imports both Spring Boot test modules as well as JUnit Jupiter, AssertJ, Hamcrest, and a number of other useful libraries.
If you have tests that use JUnit 4, JUnit 5’s vintage engine can be used to run them. To use the vintage engine, add a dependency on junit-vintage-engine, as shown in the following example:
<dependency>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
<scope>test</scope>
<exclusions>
<exclusion>
<groupId>org.hamcrest</groupId>
<artifactId>hamcrest-core</artifactId>
</exclusion>
</exclusions>
</dependency>
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