How to Effectively Run JUnit Tests with Gradle?

How do I integrate JUnit 4 into my Gradle build and execute tests located in the 'test/model' directory?

apply plugin: 'java'

sourceSets {
    main {
        java {
            srcDir 'src/model'
        }
    }
    test {
        java {
            srcDir 'test/model'
        }
    }
}

dependencies {
    testImplementation 'junit:junit:4.12'
}

To run JUnit tests with Gradle, you first need to add the JUnit dependency in your `build.gradle` file. Then, you can define the source directory for your tests and execute the tests using Gradle commands. Here’s a detailed breakdown of how to set it up correctly.

apply plugin: 'java'

sourceSets {
    main {
        java {
            srcDir 'src/model'
        }
    }
    test {
        java {
            srcDir 'test/model'
        }
    }
}

dependencies {
    testImplementation 'junit:junit:4.12'
}

Causes

• JUnit dependency not added to Gradle build file.
• Misconfigured source sets for test files.

Solutions

• Add the JUnit 4 dependency to the dependencies section of your `build.gradle` file.
• Define the correct source set for your test files in the `sourceSets` block.

Mistake: Forgetting to specify the test source set in the `sourceSets` block.

Solution: Always define the source sets for both main and test directories.

Mistake: Using compile or runtime instead of testImplementation for the JUnit dependency.

Solution: Use testImplementation to properly include JUnit as a testing dependency.