Automated testing on push in Git - Mini Project: Build & Apply

Automated Testing on Push with Git

📖 Scenario: You work on a small project where you want to automatically run tests every time you push code to your Git repository. This helps catch errors early and keeps your code healthy.

🎯 Goal: Set up a Git pre-push hook that runs a test script automatically before pushing changes. If tests fail, the push will be stopped.

📋 What You'll Learn

Create a Git hook script file named pre-push inside the .git/hooks directory

Make the pre-push script executable

Write a command inside pre-push to run the test script ./run_tests.sh

Ensure the push is blocked if tests fail (non-zero exit code)

Print a message Tests failed, push aborted. if tests fail

💡 Why This Matters

🌍 Real World

Automated testing on push helps developers catch errors early and maintain code quality in real projects.

💼 Career

Many software teams use Git hooks to automate checks and enforce quality before code is shared with others.

1

Create the Git pre-push hook script file

Create a file named pre-push inside the .git/hooks directory using the command touch .git/hooks/pre-push.

Git

# Create the pre-push hook file
# Your code here

Need a hint?

Use the touch command to create an empty file.

2

Make the pre-push hook script executable

Make the pre-push file executable by running chmod +x .git/hooks/pre-push.

Git

touch .git/hooks/pre-push
# Make the pre-push hook executable
# Your code here

Need a hint?

Use chmod +x to add execute permission.

3

Write the test command inside the pre-push hook

Edit the .git/hooks/pre-push file to add the following lines exactly:
#!/bin/sh
./run_tests.sh || { echo "Tests failed, push aborted."; exit 1; }

Git

touch .git/hooks/pre-push
chmod +x .git/hooks/pre-push
# Add the test command inside .git/hooks/pre-push
# Your code here

Need a hint?

Use a shell script that runs ./run_tests.sh and stops push if it fails.

4

Test the pre-push hook by pushing changes

Run git push to test the pre-push hook. If ./run_tests.sh fails, you should see Tests failed, push aborted. and the push should stop.

Git

touch .git/hooks/pre-push
chmod +x .git/hooks/pre-push

# Write the pre-push hook script
cat > .git/hooks/pre-push << 'EOF'
#!/bin/sh
./run_tests.sh || { echo "Tests failed, push aborted."; exit 1; }
EOF

chmod +x .git/hooks/pre-push

# Run git push to test the hook
# Your code here

Need a hint?

Run git push and observe the output message if tests fail.