Parallel test execution in Jenkins - Mini Project: Build & Apply

Parallel test execution

📖 Scenario: You are working on a Jenkins pipeline to speed up your software testing process. You want to run multiple test suites at the same time instead of one after another. This will save time and give faster feedback on your code changes.

🎯 Goal: Create a Jenkins pipeline script that runs two test stages in parallel and then shows the combined result.

📋 What You'll Learn

Create a Jenkins pipeline with a stages block

Add two test stages named Test Suite 1 and Test Suite 2

Run these two test stages in parallel using the parallel directive

Print a message after both tests complete

💡 Why This Matters

🌍 Real World

Running tests in parallel in Jenkins pipelines saves time and speeds up software delivery.

💼 Career

DevOps engineers often create Jenkins pipelines that run tests in parallel to improve CI/CD efficiency.

1

Create basic Jenkins pipeline structure

Write a Jenkins pipeline script that starts with pipeline { and includes an empty stages {} block.

Jenkins

pipeline {
    agent any
    stages {
        // Your code here
    }
}

Need a hint?

Start with pipeline {, add agent any to run on any available agent, and add an empty stages {} block.

2

Add two test stages inside a parallel block

Inside the stages block, add a stage named Parallel Tests that uses the parallel directive to run two stages named Test Suite 1 and Test Suite 2. Each test stage should have a steps block with a echo command printing Running Test Suite 1 or Running Test Suite 2 respectively.

Jenkins

pipeline {
    agent any
    stages {
        stage('Parallel Tests') {
            parallel {
                // Your code here
            }
        }
    }
}

Need a hint?

Use parallel inside a stage to run multiple stages at the same time. Each parallel branch needs a name and a steps block.

3

Add a final stage to print completion message

After the Parallel Tests stage, add another stage named Summary with a steps block that uses echo to print All tests completed successfully.

Jenkins

pipeline {
    agent any
    stages {
        stage('Parallel Tests') {
            parallel {
                'Test Suite 1': {
                    steps {
                        echo 'Running Test Suite 1'
                    }
                },
                'Test Suite 2': {
                    steps {
                        echo 'Running Test Suite 2'
                    }
                }
            }
        }
        // Your code here
    }
}

Need a hint?

Add a new stage after the parallel tests to show a message when all tests finish.

4

Print the final pipeline script

Print the entire Jenkins pipeline script to verify it runs the two test suites in parallel and then prints the completion message.

Jenkins

// Your code here to print the pipeline script

Need a hint?

Review the full pipeline script to ensure it matches the expected structure for parallel test execution.