Bonemeijer/phpunit-extensions

A simple library of helper components for PhpUnit tests.

The goal is to provide some simple time-saving PhpUnit extensions.

Installing

This project is still in beta. Backwards incompatible changes will be introduced during this time.

composer require bonemeijer/phpunit-extensions --dev

JSON Assertion

This package provides a quick way to assert arbitrary data by dumping it to a JSON file and comparing it afterward.

Example:

class JsonAssertionTraitTest extends TestCase
{
    // This trait provides the functionality
    use JsonAssertionTrait;

    public function testSomething(): void
    {
        $someUnit = new SomeUnit();
        
        try {
            $output = $someUnit->doSomething();
        } catch (\Throwable $exception) {
            // Capture exception to use in assertion data
        }
            
        // This will build the assertion file. Nothing is dumped or asserted yet.
        // The received data should be the current state
        $assertion = $this->getJsonAssertion(
            [
                'output'    => $output,
                'exception' => isset($exception)
                    ? [
                        'class'   => get_class($exception),
                        'message' => $exception->getMessage(),
                    ]
                    : null,
            ],
        );
        
        // This will run the assertion logic
        $assertion->assertSame();
    }
}

When calling assertSame(), the following logic will be applied:

• If the assertion file does not exist, it will be created and the current test will be marked as skipped.
• If the assertion file exists, the data passed to getJsonAssertion will be compared to the dumped file. If it matches, the test will pass. If it does not match, the test will fail.

Updating assertions

To quickly update any assertions, you can set the UPDATE_ASSERTIONS=1 environment variable. Or use the shortcut UA=1.

# Update all assertions
UPDATE_ASSERTIONS=1 vendor/bin/phpunit

# Update all assertions using shortcut
UA=1 vendor/bin/phpunit 

# Update only a specific test
UA=1 vendor/bin/phpunit --filter SomeUnitTest

When you commit the assertion dump to a VCS like GIT, you can then easily verify any changes by rerunning the test suite with UPDATE_ASSERTIONS=1. The GIT diff will show you the changes in output.

Deployment

Don't deploy test tools. Which is why the Composer --dev flag is recommended.

Versioning

This package uses SemVer for versioning. For the versions available, see the tags on this repository.

Authors

• Maurice Bonemeijer - Initial work - Bonemeijer

See also the list of contributors who participated in this project.

License

This project is licensed under the MIT License - see the LICENSE file for details