private function KernelTestBase::bootKernel in Zircon Profile 8

Same name and namespace in other branches

1. 8.0 core/tests/Drupal/KernelTests/KernelTestBase.php \Drupal\KernelTests\KernelTestBase::bootKernel()

Bootstraps a kernel for a test.

1 call to KernelTestBase::bootKernel()

KernelTestBase::setUp in core/tests/Drupal/KernelTests/KernelTestBase.php

File

core/tests/Drupal/KernelTests/KernelTestBase.php, line 293

Contains \Drupal\KernelTests\KernelTestBase.

Class

KernelTestBase

Base class for functional integration tests.

Namespace

Drupal\KernelTests

Code

private function bootKernel() {
  $this
    ->setSetting('container_yamls', []);

  // Allow for test-specific overrides.
  $settings_services_file = $this->root . '/sites/default' . '/testing.services.yml';
  if (file_exists($settings_services_file)) {

    // Copy the testing-specific service overrides in place.
    $testing_services_file = $this->root . '/' . $this->siteDirectory . '/services.yml';
    copy($settings_services_file, $testing_services_file);
    $this
      ->setSetting('container_yamls', [
      $testing_services_file,
    ]);
  }

  // Allow for global test environment overrides.
  if (file_exists($test_env = $this->root . '/sites/default/testing.services.yml')) {
    $GLOBALS['conf']['container_yamls']['testing'] = $test_env;
  }

  // Add this test class as a service provider.
  $GLOBALS['conf']['container_service_providers']['test'] = $this;
  $modules = self::getModulesToEnable(get_class($this));

  // Prepare a precompiled container for all tests of this class.
  // Substantially improves performance, since ContainerBuilder::compile()
  // is very expensive. Encourages testing best practices (small tests).
  // Normally a setUpBeforeClass() operation, but object scope is required to
  // inject $this test class instance as a service provider (see above).
  $rc = new \ReflectionClass(get_class($this));
  $test_method_count = count(array_filter($rc
    ->getMethods(), function ($method) {

    // PHPUnit's @test annotations are intentionally ignored/not supported.
    return strpos($method
      ->getName(), 'test') === 0;
  }));
  if ($test_method_count > 1 && !$this
    ->isTestInIsolation()) {

    // Clone a precompiled, empty ContainerBuilder instance for each test.
    $container = $this
      ->getCompiledContainerBuilder($modules);
  }

  // Bootstrap the kernel. Do not use createFromRequest() to retain Settings.
  $kernel = new DrupalKernel('testing', $this->classLoader, FALSE);
  $kernel
    ->setSitePath($this->siteDirectory);

  // Boot the precompiled container. The kernel will enhance it with synthetic
  // services.
  if (isset($container)) {
    $kernel
      ->setContainer($container);
    unset($container);
  }
  elseif ($modules && ($extensions = $this
    ->getExtensionsForModules($modules))) {
    $kernel
      ->updateModules($extensions, $extensions);
  }

  // DrupalKernel::boot() is not sufficient as it does not invoke preHandle(),
  // which is required to initialize legacy global variables.
  $request = Request::create('/');
  $kernel
    ->prepareLegacyRequest($request);

  // register() is only called if a new container was built/compiled.
  $this->container = $kernel
    ->getContainer();

  // Ensure database tasks have been run.
  require_once __DIR__ . '/../../../includes/install.inc';
  $connection = Database::getConnection();
  $errors = db_installer_object($connection
    ->driver())
    ->runTasks();
  if (!empty($errors)) {
    $this
      ->fail('Failed to run installer database tasks: ' . implode(', ', $errors));
  }
  if ($modules) {
    $this->container
      ->get('module_handler')
      ->loadAll();
  }

  // Write the core.extension configuration.
  // Required for ConfigInstaller::installDefaultConfig() to work.
  $this->container
    ->get('config.storage')
    ->write('core.extension', array(
    'module' => array_fill_keys($modules, 0),
    'theme' => array(),
  ));
  $settings = Settings::getAll();
  $settings['php_storage']['default'] = [
    'class' => '\\Drupal\\Component\\PhpStorage\\FileStorage',
  ];
  new Settings($settings);
}