Configurable Kernel for integration tests

[jdreesen]

Extends the TestKernel so that it can be configured dynamically for each test.

This is useful if different configurations or dependent bundles are to be tested.

To do this, your test class must inherit from ConfigurableKernelTestCase:

use Neusta\Pimcore\TestingFramework\Kernel\TestKernel;
use Neusta\Pimcore\TestingFramework\Test\ConfigurableKernelTestCase;

class SomeTest extends ConfigurableKernelTestCase
{
    public function test_bundle_with_different_configuration(): void
    {
        // Boot the kernel with a config closure
        $kernel = self::bootKernel(['config' => static function (TestKernel $kernel) {
            // Add some other bundles we depend on
            $kernel->addTestBundle(OtherBundle::class);

            // Add some configuration
            $kernel->addTestConfig(__DIR__.'/config.yaml');

            // Configure some extension
            $kernel->addTestExtensionConfig('my_bundle', ['some_config' => true]);

            // Add some compiler pass
            $kernel->addTestCompilerPass(new MyBundleCompilerPass());
        }]);
    }
}

[yariksheptykin]

Good job, @jdreesen . Let's merge this in.