ConfigStorageTestBase.php in Zircon Profile 8

Contains \Drupal\config\Tests\Storage\ConfigStorageTestBase.

Namespace

Drupal\config\Tests\Storage

File

core/modules/config/src/Tests/Storage/ConfigStorageTestBase.php

<?php

/**
 * @file
 * Contains \Drupal\config\Tests\Storage\ConfigStorageTestBase.
 */
namespace Drupal\config\Tests\Storage;

use Drupal\simpletest\KernelTestBase;

/**
 * Base class for testing storage operations.
 *
 * All configuration storages are expected to behave identically in
 * terms of reading, writing, listing, deleting, as well as error handling.
 *
 * Therefore, storage tests use an uncommon test case class structure;
 * the base class defines the test method(s) to execute, which are identical
 * for all storages. The storage specific test case classes supply the
 * necessary helper methods to interact with the raw/native storage
 * directly.
 */
abstract class ConfigStorageTestBase extends KernelTestBase {

  /**
   * @var \Drupal\Core\Config\StorageInterface
   */
  protected $storage;

  /**
   * @var \Drupal\Core\Config\StorageInterface
   */
  protected $invalidStorage;

  /**
   * Tests storage CRUD operations.
   *
   * @todo Coverage: Trigger PDOExceptions / Database exceptions.
   */
  function testCRUD() {
    $name = 'config_test.storage';

    // Checking whether a non-existing name exists returns FALSE.
    $this
      ->assertIdentical($this->storage
      ->exists($name), FALSE);

    // Reading a non-existing name returns FALSE.
    $data = $this->storage
      ->read($name);
    $this
      ->assertIdentical($data, FALSE);

    // Writing data returns TRUE and the data has been written.
    $data = array(
      'foo' => 'bar',
    );
    $result = $this->storage
      ->write($name, $data);
    $this
      ->assertIdentical($result, TRUE);
    $raw_data = $this
      ->read($name);
    $this
      ->assertIdentical($raw_data, $data);

    // Checking whether an existing name exists returns TRUE.
    $this
      ->assertIdentical($this->storage
      ->exists($name), TRUE);

    // Writing the identical data again still returns TRUE.
    $result = $this->storage
      ->write($name, $data);
    $this
      ->assertIdentical($result, TRUE);

    // Listing all names returns all.
    $names = $this->storage
      ->listAll();
    $this
      ->assertTrue(in_array('system.performance', $names));
    $this
      ->assertTrue(in_array($name, $names));

    // Listing all names with prefix returns names with that prefix only.
    $names = $this->storage
      ->listAll('config_test.');
    $this
      ->assertFalse(in_array('system.performance', $names));
    $this
      ->assertTrue(in_array($name, $names));

    // Rename the configuration storage object.
    $new_name = 'config_test.storage_rename';
    $this->storage
      ->rename($name, $new_name);
    $raw_data = $this
      ->read($new_name);
    $this
      ->assertIdentical($raw_data, $data);

    // Rename it back so further tests work.
    $this->storage
      ->rename($new_name, $name);

    // Deleting an existing name returns TRUE.
    $result = $this->storage
      ->delete($name);
    $this
      ->assertIdentical($result, TRUE);

    // Deleting a non-existing name returns FALSE.
    $result = $this->storage
      ->delete($name);
    $this
      ->assertIdentical($result, FALSE);

    // Deleting all names with prefix deletes the appropriate data and returns
    // TRUE.
    $files = array(
      'config_test.test.biff',
      'config_test.test.bang',
      'config_test.test.pow',
    );
    foreach ($files as $name) {
      $this->storage
        ->write($name, $data);
    }
    $result = $this->storage
      ->deleteAll('config_test.');
    $names = $this->storage
      ->listAll('config_test.');
    $this
      ->assertIdentical($result, TRUE);
    $this
      ->assertIdentical($names, array());

    // Test renaming an object that does not exist throws an exception.
    try {
      $this->storage
        ->rename('config_test.storage_does_not_exist', 'config_test.storage_does_not_exist_rename');
    } catch (\Exception $e) {
      $class = get_class($e);
      $this
        ->pass($class . ' thrown upon renaming a nonexistent storage bin.');
    }

    // Test renaming to an object that already exists throws an exception.
    try {
      $this->storage
        ->rename('system.cron', 'system.performance');
    } catch (\Exception $e) {
      $class = get_class($e);
      $this
        ->pass($class . ' thrown upon renaming a nonexistent storage bin.');
    }
  }

  /**
   * Tests an invalid storage.
   */
  public function testInvalidStorage() {
    $name = 'config_test.storage';

    // Write something to the valid storage to prove that the storages do not
    // pollute one another.
    $data = array(
      'foo' => 'bar',
    );
    $result = $this->storage
      ->write($name, $data);
    $this
      ->assertIdentical($result, TRUE);
    $raw_data = $this
      ->read($name);
    $this
      ->assertIdentical($raw_data, $data);

    // Reading from a non-existing storage bin returns FALSE.
    $result = $this->invalidStorage
      ->read($name);
    $this
      ->assertIdentical($result, FALSE);

    // Deleting from a non-existing storage bin throws an exception.
    try {
      $this->invalidStorage
        ->delete($name);
      $this
        ->fail('Exception not thrown upon deleting from a non-existing storage bin.');
    } catch (\Exception $e) {
      $class = get_class($e);
      $this
        ->pass($class . ' thrown upon deleting from a non-existing storage bin.');
    }

    // Listing on a non-existing storage bin returns an empty array.
    $result = $this->invalidStorage
      ->listAll();
    $this
      ->assertIdentical($result, array());

    // Writing to a non-existing storage bin creates the bin.
    $this->invalidStorage
      ->write($name, array(
      'foo' => 'bar',
    ));
    $result = $this->invalidStorage
      ->read($name);
    $this
      ->assertIdentical($result, array(
      'foo' => 'bar',
    ));
  }

  /**
   * Tests storage writing and reading data preserving data type.
   */
  function testDataTypes() {
    $name = 'config_test.types';
    $data = array(
      'array' => array(),
      'boolean' => TRUE,
      'exp' => 1.2E+34,
      'float' => 3.14159,
      'hex' => 0xc,
      'int' => 99,
      'octal' => 0775,
      'string' => 'string',
      'string_int' => '1',
    );
    $result = $this->storage
      ->write($name, $data);
    $this
      ->assertIdentical($result, TRUE);
    $read_data = $this->storage
      ->read($name);
    $this
      ->assertIdentical($read_data, $data);
  }

  /**
   * Tests that the storage supports collections.
   */
  public function testCollection() {
    $name = 'config_test.storage';
    $data = array(
      'foo' => 'bar',
    );
    $result = $this->storage
      ->write($name, $data);
    $this
      ->assertIdentical($result, TRUE);
    $this
      ->assertIdentical($data, $this->storage
      ->read($name));

    // Create configuration in a new collection.
    $new_storage = $this->storage
      ->createCollection('collection.sub.new');
    $this
      ->assertFalse($new_storage
      ->exists($name));
    $this
      ->assertEqual(array(), $new_storage
      ->listAll());
    $new_storage
      ->write($name, $data);
    $this
      ->assertIdentical($result, TRUE);
    $this
      ->assertIdentical($data, $new_storage
      ->read($name));
    $this
      ->assertEqual(array(
      $name,
    ), $new_storage
      ->listAll());
    $this
      ->assertTrue($new_storage
      ->exists($name));
    $new_data = array(
      'foo' => 'baz',
    );
    $new_storage
      ->write($name, $new_data);
    $this
      ->assertIdentical($result, TRUE);
    $this
      ->assertIdentical($new_data, $new_storage
      ->read($name));

    // Create configuration in another collection.
    $another_storage = $this->storage
      ->createCollection('collection.sub.another');
    $this
      ->assertFalse($another_storage
      ->exists($name));
    $this
      ->assertEqual(array(), $another_storage
      ->listAll());
    $another_storage
      ->write($name, $new_data);
    $this
      ->assertIdentical($result, TRUE);
    $this
      ->assertIdentical($new_data, $another_storage
      ->read($name));
    $this
      ->assertEqual(array(
      $name,
    ), $another_storage
      ->listAll());
    $this
      ->assertTrue($another_storage
      ->exists($name));

    // Create configuration in yet another collection.
    $alt_storage = $this->storage
      ->createCollection('alternate');
    $alt_storage
      ->write($name, $new_data);
    $this
      ->assertIdentical($result, TRUE);
    $this
      ->assertIdentical($new_data, $alt_storage
      ->read($name));

    // Switch back to the collection-less mode and check the data still exists
    // add has not been touched.
    $this
      ->assertIdentical($data, $this->storage
      ->read($name));

    // Check that the getAllCollectionNames() method works.
    $this
      ->assertIdentical(array(
      'alternate',
      'collection.sub.another',
      'collection.sub.new',
    ), $this->storage
      ->getAllCollectionNames());

    // Check that the collections are removed when they are empty.
    $alt_storage
      ->delete($name);
    $this
      ->assertIdentical(array(
      'collection.sub.another',
      'collection.sub.new',
    ), $this->storage
      ->getAllCollectionNames());

    // Create configuration in collection called 'collection'. This ensures that
    // FileStorage's collection storage works regardless of its use of
    // subdirectories.
    $parent_storage = $this->storage
      ->createCollection('collection');
    $this
      ->assertFalse($parent_storage
      ->exists($name));
    $this
      ->assertEqual(array(), $parent_storage
      ->listAll());
    $parent_storage
      ->write($name, $new_data);
    $this
      ->assertIdentical($result, TRUE);
    $this
      ->assertIdentical($new_data, $parent_storage
      ->read($name));
    $this
      ->assertEqual(array(
      $name,
    ), $parent_storage
      ->listAll());
    $this
      ->assertTrue($parent_storage
      ->exists($name));
    $this
      ->assertIdentical(array(
      'collection',
      'collection.sub.another',
      'collection.sub.new',
    ), $this->storage
      ->getAllCollectionNames());
    $parent_storage
      ->deleteAll();
    $this
      ->assertIdentical(array(
      'collection.sub.another',
      'collection.sub.new',
    ), $this->storage
      ->getAllCollectionNames());

    // Check that the having an empty collection-less storage does not break
    // anything. Before deleting check that the previous delete did not affect
    // data in another collection.
    $this
      ->assertIdentical($data, $this->storage
      ->read($name));
    $this->storage
      ->delete($name);
    $this
      ->assertIdentical(array(
      'collection.sub.another',
      'collection.sub.new',
    ), $this->storage
      ->getAllCollectionNames());
  }
  protected abstract function read($name);
  protected abstract function insert($name, $data);
  protected abstract function update($name, $data);
  protected abstract function delete($name);

}

Classes

Name	Description
ConfigStorageTestBase	Base class for testing storage operations.