Applying 1 junit-platform.properties file to entire project (multiple modules)

Question

How can I apply a single junit-platform.properties to all modules in my project.

My project has 3 separate modules, each with its own test + resources.

Currently I'm duplicating and placing them in each resources directory. How can I reduce it to just 1 centralized junit-platform.properties and where should I place it?

Answer 1

The junit5 guide 4.5. Configuration Parameters describes

The JUnit Platform configuration file: a file named junit-platform.properties in the root of the class path that follows the syntax rules for a Java Properties file.

Therefore you could create a common project with your junit-platform.properties and add this project into the classpath for each of your projects.

for Eclipse workspace

Create baseproject with junit-platform.properties file.

junit-platform.properties with custom conmfiguration e.g. junit.jupiter.displayname.generator.default

junit.jupiter.displayname.generator.default = org.junit.jupiter.api.DisplayNameGenerator$ReplaceUnderscores

Other project project2 without any own junit-platform.properties

add baseproject to java build path of project2

Launching Junit test added baseproject into the classpath

Result of Junit test shows test display name with replaced underscores

for IntelliJ workspace with gradle

Using IntelliJ workspace , e.g. junitconfig. Add module baseproject for junit-platform.properties (as resource) Add module project2 for your Java files and Junit test files.

Add module baseproject as dependency for module project2 in build.gradle

dependencies {
    testImplementation 'org.junit.jupiter:junit-jupiter-api:5.8.1'
    testRuntimeOnly 'org.junit.jupiter:junit-jupiter-engine:5.8.1'
    implementation project(':baseproject')
}

rebuild module project2 and run junit test