DatabaseStorageExpirableTest.php

<?php

/**
 * @file
 * Contains Drupal\system\Tests\KeyValueStore\DatabaseStorageExpirableTest.
 */
namespace Drupal\system\Tests\KeyValueStore;

use Symfony\Component\DependencyInjection\Reference;

/**
 * Tests the key-value database storage.
 */
class DatabaseStorageExpirableTest extends StorageTestBase {
  public static function getInfo() {
    return array(
      'name' => 'Expirable database storage',
      'description' => 'Tests the expirable key-value database storage.',
      'group' => 'Key-value store',
    );
  }
  protected function setUp() {
    parent::setUp();
    $this->factory = 'keyvalue.expirable';
    module_load_install('system');
    $schema = system_schema();
    db_create_table('key_value_expire', $schema['key_value_expire']);
    $this->container
      ->register('database', 'Drupal\\Core\\Database\\Connection')
      ->setFactoryClass('Drupal\\Core\\Database\\Database')
      ->setFactoryMethod('getConnection')
      ->addArgument('default');
    $this->container
      ->register('keyvalue.expirable.database', 'Drupal\\Core\\KeyValueStore\\KeyValueDatabaseExpirableFactory')
      ->addArgument(new Reference('database'));
    global $conf;
    $conf['keyvalue_expirable_default'] = 'keyvalue.expirable.database';
  }
  protected function tearDown() {

    // The DatabaseExpirableStorage class has a destructor which deletes rows
    // from the key_value_expire table. We need to make sure the destructor
    // runs before the table is deleted.
    $this->container
      ->set('keyvalue.expirable', NULL);
    db_drop_table('key_value_expire');
    parent::tearDown();
  }

  /**
   * Tests CRUD functionality with expiration.
   */
  public function testCRUDWithExpiration() {
    $stores = $this
      ->createStorage();

    // Verify that an item can be stored with setWithExpire().
    // Use a random expiration in each test.
    $stores[0]
      ->setWithExpire('foo', $this->objects[0], rand(500, 100000));
    $this
      ->assertIdenticalObject($this->objects[0], $stores[0]
      ->get('foo'));

    // Verify that the other collection is not affected.
    $this
      ->assertFalse($stores[1]
      ->get('foo'));

    // Verify that an item can be updated with setWithExpire().
    $stores[0]
      ->setWithExpire('foo', $this->objects[1], rand(500, 100000));
    $this
      ->assertIdenticalObject($this->objects[1], $stores[0]
      ->get('foo'));

    // Verify that the other collection is still not affected.
    $this
      ->assertFalse($stores[1]
      ->get('foo'));

    // Verify that the expirable data key is unique.
    $stores[1]
      ->setWithExpire('foo', $this->objects[2], rand(500, 100000));
    $this
      ->assertIdenticalObject($this->objects[1], $stores[0]
      ->get('foo'));
    $this
      ->assertIdenticalObject($this->objects[2], $stores[1]
      ->get('foo'));

    // Verify that multiple items can be stored with setMultipleWithExpire().
    $values = array(
      'foo' => $this->objects[3],
      'bar' => $this->objects[4],
    );
    $stores[0]
      ->setMultipleWithExpire($values, rand(500, 100000));
    $result = $stores[0]
      ->getMultiple(array(
      'foo',
      'bar',
    ));
    foreach ($values as $j => $value) {
      $this
        ->assertIdenticalObject($value, $result[$j]);
    }

    // Verify that the other collection was not affected.
    $this
      ->assertIdenticalObject($stores[1]
      ->get('foo'), $this->objects[2]);
    $this
      ->assertFalse($stores[1]
      ->get('bar'));

    // Verify that all items in a collection can be retrieved.
    // Ensure that an item with the same name exists in the other collection.
    $stores[1]
      ->set('foo', $this->objects[5]);
    $result = $stores[0]
      ->getAll();

    // Not using assertIdentical(), since the order is not defined for getAll().
    $this
      ->assertEqual(count($result), count($values));
    foreach ($result as $key => $value) {
      $this
        ->assertEqual($values[$key], $value);
    }

    // Verify that all items in the other collection are different.
    $result = $stores[1]
      ->getAll();
    $this
      ->assertEqual($result, array(
      'foo' => $this->objects[5],
    ));

    // Verify that multiple items can be deleted.
    $stores[0]
      ->deleteMultiple(array_keys($values));
    $this
      ->assertFalse($stores[0]
      ->get('foo'));
    $this
      ->assertFalse($stores[0]
      ->get('bar'));
    $this
      ->assertFalse($stores[0]
      ->getMultiple(array(
      'foo',
      'bar',
    )));

    // Verify that the item in the other collection still exists.
    $this
      ->assertIdenticalObject($this->objects[5], $stores[1]
      ->get('foo'));

    // Test that setWithExpireIfNotExists() succeeds only the first time.
    $key = $this
      ->randomName();
    for ($i = 0; $i <= 1; $i++) {

      // setWithExpireIfNotExists() should be TRUE the first time (when $i is
      // 0) and FALSE the second time (when $i is 1).
      $this
        ->assertEqual(!$i, $stores[0]
        ->setWithExpireIfNotExists($key, $this->objects[$i], rand(500, 100000)));
      $this
        ->assertIdenticalObject($this->objects[0], $stores[0]
        ->get($key));

      // Verify that the other collection is not affected.
      $this
        ->assertFalse($stores[1]
        ->get($key));
    }

    // Remove the item and try to set it again.
    $stores[0]
      ->delete($key);
    $stores[0]
      ->setWithExpireIfNotExists($key, $this->objects[1], rand(500, 100000));

    // This time it should succeed.
    $this
      ->assertIdenticalObject($this->objects[1], $stores[0]
      ->get($key));

    // Verify that the other collection is still not affected.
    $this
      ->assertFalse($stores[1]
      ->get($key));
  }

  /**
   * Tests data expiration.
   */
  public function testExpiration() {
    $stores = $this
      ->createStorage();
    $day = 604800;

    // Set an item to expire in the past and another without an expiration.
    $stores[0]
      ->setWithExpire('yesterday', 'all my troubles seemed so far away', -1 * $day);
    $stores[0]
      ->set('troubles', 'here to stay');

    // Only the non-expired item should be returned.
    $this
      ->assertFalse($stores[0]
      ->get('yesterday'));
    $this
      ->assertIdentical($stores[0]
      ->get('troubles'), 'here to stay');
    $this
      ->assertIdentical(count($stores[0]
      ->getMultiple(array(
      'yesterday',
      'troubles',
    ))), 1);

    // Store items set to expire in the past in various ways.
    $stores[0]
      ->setWithExpire($this
      ->randomName(), $this->objects[0], -7 * $day);
    $stores[0]
      ->setWithExpireIfNotExists($this
      ->randomName(), $this->objects[1], -5 * $day);
    $stores[0]
      ->setMultipleWithExpire(array(
      $this
        ->randomName() => $this->objects[2],
      $this
        ->randomName() => $this->objects[3],
    ), -3 * $day);
    $stores[0]
      ->setWithExpireIfNotExists('yesterday', "you'd forgiven me", -1 * $day);
    $stores[0]
      ->setWithExpire('still', "'til we say we're sorry", 2 * $day);

    // Ensure only non-expired items are retrived.
    $all = $stores[0]
      ->getAll();
    $this
      ->assertIdentical(count($all), 2);
    foreach (array(
      'troubles',
      'still',
    ) as $key) {
      $this
        ->assertTrue(!empty($all[$key]));
    }
  }

}