PHPUnit WP Hooks

This library is a PHPUnit library aimed to facilitate mocking WordPress hooks during integration testing.

Install

To install the extension require it:

composer require wp-launchpad/phpunit-wp-hooks --dev

Once you done that then you can use the trait MockHooks and at the following logic to your base TestCase where my_prefix is your plugin prefix:

    protected function setUp(): void
    {
        parent::setUp();
        $this->mockHooks();
    }

    protected function tearDown(): void
    {
        $this->resetHooks();
        parent::tearDown();
    }


     protected function getPrefix(): string {
        return 'my_prefix';
     }

     protected function getCurrentTest(): string {
        return $this->getName();
     }

Mock hooks

Register a callback

It is possible to add a callback inside the test class to control the value from a filter. For that first you need to create a callback in the class:

public function myCallback() {
    return false;
}

Then in the dockblock of that callback you can add the @hook annotation:

/** 
 * @hook my-event 15
 */ 

Where 15 is the priority from the filter. If you forget this part the default priority will be 10.

Isolate a hook

To isolate a hook to reduce it to a single callback it is possible by adding @hook-isolated annotation on the test method:

/**
 * @hook-isolated my-event myCallback 15
 */

Where 15 is the priority from the filter. If you forget this part the default priority will be 10.