PHPUnit: Testing with a Bite

2:54:09

What you'll be learning

While the fundamentals of PHPUnit haven't changed, this tutorial *is* built on an older version of Symfony and PHPUnit.
// composer.json
{
    "require": {
        "php": "^7.0, <7.4",
        "composer/package-versions-deprecated": "^1.11", // 1.11.99
        "doctrine/doctrine-bundle": "^1.6", // 1.10.3
        "doctrine/orm": "^2.5", // v2.7.2
        "incenteev/composer-parameter-handler": "^2.0", // v2.1.2
        "sensio/distribution-bundle": "^5.0.19", // v5.0.21
        "sensio/framework-extra-bundle": "^3.0.2", // v3.0.28
        "symfony/monolog-bundle": "^3.1.0", // v3.1.2
        "symfony/polyfill-apcu": "^1.0", // v1.6.0
        "symfony/swiftmailer-bundle": "^2.3.10", // v2.6.7
        "symfony/symfony": "3.3.*", // v3.3.13
        "twig/twig": "^1.0||^2.0" // v2.4.4
    },
    "require-dev": {
        "doctrine/data-fixtures": "^1.3", // 1.3.3
        "doctrine/doctrine-fixtures-bundle": "^2.3", // v2.4.1
        "liip/functional-test-bundle": "^1.8", // 1.8.0
        "phpunit/phpunit": "^6.3", // 6.5.2
        "sensio/generator-bundle": "^3.0", // v3.1.6
        "symfony/phpunit-bridge": "^3.0" // v3.4.30
    }
}
// composer.json
{
    "require": {
        "php": "^7.0, <7.4",
        "composer/package-versions-deprecated": "^1.11", // 1.11.99
        "doctrine/doctrine-bundle": "^1.6", // 1.10.3
        "doctrine/orm": "^2.5", // v2.7.2
        "incenteev/composer-parameter-handler": "^2.0", // v2.1.2
        "sensio/distribution-bundle": "^5.0.19", // v5.0.21
        "sensio/framework-extra-bundle": "^3.0.2", // v3.0.28
        "symfony/monolog-bundle": "^3.1.0", // v3.1.2
        "symfony/polyfill-apcu": "^1.0", // v1.6.0
        "symfony/swiftmailer-bundle": "^2.3.10", // v2.6.7
        "symfony/symfony": "3.3.*", // v3.3.13
        "twig/twig": "^1.0||^2.0" // v2.4.4
    },
    "require-dev": {
        "doctrine/data-fixtures": "^1.3", // 1.3.3
        "doctrine/doctrine-fixtures-bundle": "^2.3", // v2.4.1
        "liip/functional-test-bundle": "^1.8", // 1.8.0
        "phpunit/phpunit": "^6.3", // 6.5.2
        "sensio/generator-bundle": "^3.0", // v3.1.6
        "symfony/phpunit-bridge": "^3.0" // v3.4.30
    }
}

It's Friday night... it's stormy... the office is empty... and you're deploying fresh code to production. Suddenly, an alarm! What!? The fences are down!? The dinosaurs are escaping! Somehow, your beautiful code contained a bug! And as the raptors surround you, one thought keeps coming back: if only we had written tests.

Indeed.

In this tutorial, we're going to jump over the hurdle of learning how to test so you can save the day!

  • Basic unit testing
  • Test-Driven-Development: how to do it, when to do it!
  • Mocking and test doubles! Creating mocks in PHPUnit & Prophecy
  • Using data providers to run tests over and over again with different input
  • Running code before and after each test
  • Testing for exceptions
  • Handling the database in tests
  • Integration tests: testing with real objects
  • Functional testing!
  • Continuous Integration (CI): let the robots run your tests

So grab your keyboard, reboot the system, and start testing with us!


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