In this tutorial, I will show you how to setup PHPUnit in PHPStorm.

This step might be optional since composer is already added to the project. But anyways

In the project title > right click > composer > init composer

You would click on download composer and store it in the project. But since I already have it, I just added C:\ProgramData\ComposerSetup\bin

Once Composer is installed then you can add dependencies by going to the same method above. In the project title > right click > composer > add dependencies.   Search for phpunit/phpunit. Since I already had Composer installed, I just edited the composer.json file in project.

Then I added a new test folder in root which will contain all my tests.

To create a test, right click in the test folder > php unit > phpunit test

Give it a name

Used this code.

To run the test. Edit the configuration and add a new runner. Top right dropdown next to the right green triangle.

Add a new runner of type PHP Unit

In the configuration.

• Give it a name.
• Directory > select the location of the test folder.
• Click on the configurator icon > use custom loader > get the path of the composer autoload. It should be in /vendor in the project.

Now you can press the green triangle and run it.

Calculator Class & Test

Calculator Class in test_src

Calculator Test Script