How to make jar file include .class from test folder

Help/Discuss
1

I use gradle init to generate a JAVA application gradle project
the default build.gradle is

/*
 * This file was generated by the Gradle 'init' task.
 *
 * This generated file contains a sample Java application project to get you started.
 * For more details take a look at the 'Building Java & JVM projects' chapter in the Gradle
 * User Manual available at https://docs.gradle.org/7.6.1/userguide/building_java_projects.html
 */

plugins {
    // Apply the application plugin to add support for building a CLI application in Java.
    id 'application'
}

repositories {
    // Use Maven Central for resolving dependencies.
    mavenCentral()
}

dependencies {
    // Use TestNG framework, also requires calling test.useTestNG() below
    testImplementation 'org.testng:testng:7.5'

    // This dependency is used by the application.
    implementation 'com.google.guava:guava:31.1-jre'
}

application {
    // Define the main class for the application.
    mainClass = 'com.sas.App'
}

tasks.named('test') {
    // Use TestNG for unit tests.
    useTestNG()
}

then I run gradle build
I open app.jar from build/libs folder, it only contains class file from “main” folder,

how to make it contains class file from “test” folder

please help me

2

You can add the compile test class files to the jar using:

tasks.named('jar') {
    from(sourceSets.test.output)
}

However, I have to wonder why you would want to do this? If you are trying to share test fixture/utility classes there are better ways of achieving that.

3

Thanks, @Chris_Dore. You highlight there are better ways of achieving the sharing of utility classes. Are you able to provide pointers as to how best to do this?

4

You should most probably use the java-test-fixtures plugin.

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