apc.test in APC - Alternative PHP Cache 7

File

tests/apc.test

<?php

class ApcCacheTestCase extends DrupalWebTestCase {
  protected $default_bin = 'cache_apc';
  protected $default_cid = 'test_temporary';
  protected $default_value = 'CacheTest';
  function setUp() {
    parent::setUp(func_get_args());
    variable_set("cache_flush_{$this->default_bin}", 0);
    variable_set('cache_class_' . $this->default_bin, 'DrupalAPCCache');
  }

  /**
   * Check whether or not a cache entry exists.
   *
   * @param $cid
   *   The cache id.
   * @param $var
   *   The variable the cache should contain.
   * @param $bin
   *   The bin the cache item was stored in.
   * @return
   *   TRUE on pass, FALSE on fail.
   */
  protected function checkCacheExists($cid, $var, $bin = NULL) {
    if ($bin == NULL) {
      $bin = $this->default_bin;
    }
    $cache = cache_get($cid, $bin);
    return isset($cache->data) && $cache->data == $var;
  }

  /**
   * Assert or a cache entry exists.
   *
   * @param $message
   *   Message to display.
   * @param $var
   *   The variable the cache should contain.
   * @param $cid
   *   The cache id.
   * @param $bin
   *   The bin the cache item was stored in.
   */
  protected function assertCacheExists($message, $var = NULL, $cid = NULL, $bin = NULL) {
    if ($bin == NULL) {
      $bin = $this->default_bin;
    }
    if ($cid == NULL) {
      $cid = $this->default_cid;
    }
    if ($var == NULL) {
      $var = $this->default_value;
    }
    $this
      ->assertTrue($this
      ->checkCacheExists($cid, $var, $bin), $message);
  }

  /**
   * Assert or a cache entry has been removed.
   *
   * @param $message
   *   Message to display.
   * @param $cid
   *   The cache id.
   * @param $bin
   *   The bin the cache item was stored in.
   */
  function assertCacheRemoved($message, $cid = NULL, $bin = NULL) {
    if ($bin == NULL) {
      $bin = $this->default_bin;
    }
    if ($cid == NULL) {
      $cid = $this->default_cid;
    }
    $cache = cache_get($cid, $bin);
    $this
      ->assertFalse($cache, $message);
  }

  /**
   * Perform the general wipe.
   * @param $bin
   *   The bin to perform the wipe on.
   */
  protected function generalWipe($bin = NULL) {
    if ($bin == NULL) {
      $bin = $this->default_bin;
    }
    cache_clear_all(NULL, $bin);
  }

  /**
   * Setup the lifetime settings for caching.
   *
   * @param $time
   *   The time in seconds the cache should minimal live.
   */
  protected function setupLifetime($time) {
    variable_set('cache_lifetime', $time);
    variable_set('cache_flush', 0);
  }

}
class ApcCacheSavingCase extends ApcCacheTestCase {
  public static function getInfo() {
    return array(
      'name' => 'Cache saving test',
      'description' => 'Check our variables are saved and restored the right way.',
      'group' => 'APC',
    );
  }
  function setUp() {
    parent::setUp();
  }

  /**
   * Test the saving and restoring of a string.
   */
  function testString() {
    $this
      ->checkVariable($this
      ->randomName(100));
  }

  /**
   * Test the saving and restoring of an integer.
   */
  function testInteger() {
    $this
      ->checkVariable(100);
  }

  /**
   * Test the saving and restoring of a double.
   */
  function testDouble() {
    $this
      ->checkVariable(1.29);
  }

  /**
   * Test the saving and restoring of an array.
   */
  function testArray() {
    $this
      ->checkVariable(array(
      'drupal1',
      'drupal2' => 'drupal3',
      'drupal4' => array(
        'drupal5',
        'drupal6',
      ),
    ));
  }

  /**
   * Test the saving and restoring of an object.
   */
  function testObject() {
    $test_object = new stdClass();
    $test_object->test1 = $this
      ->randomName(100);
    $test_object->test2 = 100;
    $test_object->test3 = array(
      'drupal1',
      'drupal2' => 'drupal3',
      'drupal4' => array(
        'drupal5',
        'drupal6',
      ),
    );
    cache_set('test_object', $test_object, $this->default_bin);
    $cache = cache_get('test_object', $this->default_bin);
    $this
      ->assertTrue(isset($cache->data) && $cache->data == $test_object, t('Object is saved and restored properly.'));
  }

  /**
   * Check or a variable is stored and restored properly.
   */
  function checkVariable($var) {
    cache_set('test_var', $var, $this->default_bin);
    $cache = cache_get('test_var', $this->default_bin);
    $this
      ->assertTrue(isset($cache->data) && $cache->data === $var, t('@type is saved and restored properly.', array(
      '@type' => ucfirst(gettype($var)),
    )));
  }

  /**
   * Test no empty cids are written in cache table.
   */
  function testNoEmptyCids() {
    $this
      ->drupalGet('user/register');
    $this
      ->assertFalse(cache_get(''), t('No cache entry is written with an empty cid.'));
  }

}

/**
 * Test cache_get_multiple().
 */
class ApcCacheGetMultipleUnitTest extends ApcCacheTestCase {
  public static function getInfo() {
    return array(
      'name' => 'Fetching multiple cache items',
      'description' => 'Confirm that multiple records are fetched correctly.',
      'group' => 'APC',
    );
  }
  function setUp() {
    parent::setUp();
  }

  /**
   * Test cache_get_multiple().
   */
  function testCacheMultiple() {
    $item1 = $this
      ->randomName(10);
    $item2 = $this
      ->randomName(10);
    cache_set('item1', $item1, $this->default_bin);
    cache_set('item2', $item2, $this->default_bin);
    $this
      ->assertTrue($this
      ->checkCacheExists('item1', $item1), t('Item 1 is cached.'));
    $this
      ->assertTrue($this
      ->checkCacheExists('item2', $item2), t('Item 2 is cached.'));

    // Fetch both records from the database with cache_get_multiple().
    $item_ids = array(
      'item1',
      'item2',
    );
    $items = cache_get_multiple($item_ids, $this->default_bin);
    $this
      ->assertEqual($items['item1']->data, $item1, t('Item was returned from cache successfully.'));
    $this
      ->assertEqual($items['item2']->data, $item2, t('Item was returned from cache successfully.'));

    // Remove one item from the cache.
    cache_clear_all('item2', $this->default_bin);

    // Confirm that only one item is returned by cache_get_multiple().
    $item_ids = array(
      'item1',
      'item2',
    );
    $items = cache_get_multiple($item_ids, $this->default_bin);
    $this
      ->assertEqual($items['item1']->data, $item1, t('Item was returned from cache successfully.'));
    $this
      ->assertFalse(isset($items['item2']), t('Item was not returned from the cache.'));
    $this
      ->assertTrue(count($items) == 1, t('Only valid cache entries returned.'));
  }

}

/**
 * Test cache clearing methods.
 */
class ApcCacheClearCase extends ApcCacheTestCase {
  public static function getInfo() {
    return array(
      'name' => 'Cache clear test',
      'description' => 'Check our clearing is done the proper way.',
      'group' => 'APC',
    );
  }
  function setUp() {
    $this->default_value = $this
      ->randomName(10);
    parent::setUp();
  }

  /**
   * Test clearing using a cid.
   */
  function testClearCid() {
    cache_set('test_cid_clear', $this->default_value, $this->default_bin);
    $this
      ->assertCacheExists(t('Cache was set for clearing cid.'), $this->default_value, 'test_cid_clear');
    cache_clear_all('test_cid_clear', $this->default_bin);
    $this
      ->assertCacheRemoved(t('Cache was removed after clearing cid.'), 'test_cid_clear');
    cache_set('test_cid_clear1', $this->default_value, $this->default_bin);
    cache_set('test_cid_clear2', $this->default_value, $this->default_bin);
    $this
      ->assertTrue($this
      ->checkCacheExists('test_cid_clear1', $this->default_value) && $this
      ->checkCacheExists('test_cid_clear2', $this->default_value), t('Two caches were created for checking cid "*" with wildcard false.'));
    cache_clear_all('*', $this->default_bin);
    $this
      ->assertTrue($this
      ->checkCacheExists('test_cid_clear1', $this->default_value) && $this
      ->checkCacheExists('test_cid_clear2', $this->default_value), t('Two caches still exists after clearing cid "*" with wildcard false.'));
  }

  /**
   * Test clearing using wildcard.
   */
  function testClearWildcard() {
    cache_set('test_cid_clear1', $this->default_value, $this->default_bin);
    cache_set('test_cid_clear2', $this->default_value, $this->default_bin);
    $this
      ->assertTrue($this
      ->checkCacheExists('test_cid_clear1', $this->default_value) && $this
      ->checkCacheExists('test_cid_clear2', $this->default_value), t('Two caches were created for checking cid "*" with wildcard true.'));
    cache_clear_all('*', $this->default_bin, TRUE);
    $this
      ->assertFalse($this
      ->checkCacheExists('test_cid_clear1', $this->default_value) || $this
      ->checkCacheExists('test_cid_clear2', $this->default_value), t('Two caches removed after clearing cid "*" with wildcard true.'));
    cache_set('test_cid_clear1', $this->default_value, $this->default_bin);
    cache_set('test_cid_clear2', $this->default_value, $this->default_bin);
    $this
      ->assertTrue($this
      ->checkCacheExists('test_cid_clear1', $this->default_value) && $this
      ->checkCacheExists('test_cid_clear2', $this->default_value), t('Two caches were created for checking cid substring with wildcard true.'));
    cache_clear_all('test_', $this->default_bin, TRUE);
    $this
      ->assertFalse($this
      ->checkCacheExists('test_cid_clear1', $this->default_value) || $this
      ->checkCacheExists('test_cid_clear2', $this->default_value), t('Two caches removed after clearing cid substring with wildcard true.'));
  }

  /**
   * Test clearing using an array.
   */
  function testClearArray() {

    // Create three cache entries.
    cache_set('test_cid_clear1', $this->default_value, $this->default_bin);
    cache_set('test_cid_clear2', $this->default_value, $this->default_bin);
    cache_set('test_cid_clear3', $this->default_value, $this->default_bin);
    $this
      ->assertTrue($this
      ->checkCacheExists('test_cid_clear1', $this->default_value) && $this
      ->checkCacheExists('test_cid_clear2', $this->default_value) && $this
      ->checkCacheExists('test_cid_clear3', $this->default_value), t('Three cache entries were created.'));

    // Clear two entries using an array.
    cache_clear_all(array(
      'test_cid_clear1',
      'test_cid_clear2',
    ), $this->default_bin);
    $this
      ->assertFalse($this
      ->checkCacheExists('test_cid_clear1', $this->default_value) || $this
      ->checkCacheExists('test_cid_clear2', $this->default_value), t('Two cache entries removed after clearing with an array.'));
    $this
      ->assertTrue($this
      ->checkCacheExists('test_cid_clear3', $this->default_value), t('Entry was not cleared from the cache'));

    // Set the cache clear threshold to 2 to confirm that the full bin is cleared
    // when the threshold is exceeded.
    variable_set('cache_clear_threshold', 2);
    cache_set('test_cid_clear1', $this->default_value, $this->default_bin);
    cache_set('test_cid_clear2', $this->default_value, $this->default_bin);
    $this
      ->assertTrue($this
      ->checkCacheExists('test_cid_clear1', $this->default_value) && $this
      ->checkCacheExists('test_cid_clear2', $this->default_value), t('Two cache entries were created.'));
    cache_clear_all(array(
      'test_cid_clear1',
      'test_cid_clear2',
      'test_cid_clear3',
    ), $this->default_bin);
    $this
      ->assertFalse($this
      ->checkCacheExists('test_cid_clear1', $this->default_value) || $this
      ->checkCacheExists('test_cid_clear2', $this->default_value) || $this
      ->checkCacheExists('test_cid_clear3', $this->default_value), t('All cache entries removed when the array exceeded the cache clear threshold.'));
  }

  /**
   * Test drupal_flush_all_caches().
   */
  function testFlushAllCaches() {

    // Create cache entries for each flushed cache bin.
    $bins = array(
      'cache',
      'cache_filter',
      'cache_page',
      'cache_boostrap',
      'cache_path',
    );
    $bins = array_merge(module_invoke_all('flush_caches'), $bins);
    foreach ($bins as $id => $bin) {
      $id = 'test_cid_clear' . $id;
      cache_set($id, $this->default_value, $bin);
    }

    // Remove all caches then make sure that they are cleared.
    drupal_flush_all_caches();
    foreach ($bins as $id => $bin) {
      $id = 'test_cid_clear' . $id;
      $this
        ->assertFalse($this
        ->checkCacheExists($id, $this->default_value, $bin), t('All cache entries removed from @bin.', array(
        '@bin' => $bin,
      )));
    }
  }

}

/**
 * Test cache_is_empty() function.
 */
class ApcCacheIsEmptyCase extends ApcCacheTestCase {
  public static function getInfo() {
    return array(
      'name' => 'Cache emptiness test',
      'description' => 'Check if a cache bin is empty after performing clear operations.',
      'group' => 'APC',
    );
  }
  function setUp() {
    $this->default_value = $this
      ->randomName(10);
    parent::setUp();
  }

  /**
   * Test clearing using a cid.
   */
  function testIsEmpty() {

    // Clear the cache bin.
    cache_clear_all('*', $this->default_bin);
    $this
      ->assertTrue(cache_is_empty($this->default_bin), t('The cache bin is empty'));

    // Add some data to the cache bin.
    cache_set($this->default_cid, $this->default_value, $this->default_bin);
    $this
      ->assertCacheExists(t('Cache was set.'), $this->default_value, $this->default_cid);
    $this
      ->assertFalse(cache_is_empty($this->default_bin), t('The cache bin is not empty'));

    // Remove the cached data.
    cache_clear_all($this->default_cid, $this->default_bin);
    $this
      ->assertCacheRemoved(t('Cache was removed.'), $this->default_cid);
    $this
      ->assertTrue(cache_is_empty($this->default_bin), t('The cache bin is empty'));
  }

}

Classes

Name	Description
ApcCacheClearCase	Test cache clearing methods.
ApcCacheGetMultipleUnitTest	Test cache_get_multiple().
ApcCacheIsEmptyCase	Test cache_is_empty() function.
ApcCacheSavingCase
ApcCacheTestCase