class MemCacheStatisticsTestCase in Memcache API and Integration 7

Test statistics generation.

Hierarchy

• class \MemCacheStatisticsTestCase extends \MemcacheTestCase

File

tests/memcache.test, line 885

Test cases for the memcache cache backend.

class MemCacheStatisticsTestCase extends MemcacheTestCase {
  public static function getInfo() {
    return array(
      'name' => 'Statistics tests',
      'description' => 'Test that statistics are being recorded appropriately.',
      'group' => 'Memcache',
    );
  }

  /**
   * @see MemcacheTestCase::setUp()
   */
  public function setUp() {
    parent::setUp('memcache_admin');
    $conf['cache_default_class'] = 'MemCacheDrupal';
    $conf['cache_class_cache_form'] = 'DrupalDatabaseCache';
  }

  /**
   * Checks for early bootstrap statistics.
   *
   * Tests that bootstrap cache commands are recorded when statistics are
   * enabled and tests that statistics are not recorded when the user doesn't
   * have access or displaying statistics is disabled.
   */
  public function testBootstrapStatistics() {
    global $_dmemcache_stats;

    // Expected statistics for cache_set() and cache_get().
    $test_full_key = dmemcache_key($this->default_cid, $this->default_bin);

    // List of bootstrap cids to check for.
    $cache_bootstrap_cids = array(
      'variables',
      'bootstrap_modules',
      'lookup_cache',
      'system_list',
      'module_implements',
    );

    // Turn on memcache statistics.
    variable_set('show_memcache_statistics', TRUE);
    drupal_static_reset('dmemcache_stats_init');
    $this
      ->drupalGet('<front>');

    // Check that statistics are not displayed for anonymous users.
    $this
      ->assertNoRaw('<div id="memcache-devel">', 'Statistics not present.');

    // Create and login a user without access to view statistics.
    $account = $this
      ->drupalCreateUser();
    $this
      ->drupalLogin($account);

    // Check that statistics are not displayed for authenticated users without
    // permission.
    $this
      ->assertNoRaw('<div id="memcache-devel">', 'Statistics not present.');

    // Create and login a user with access to view statistics.
    $account = $this
      ->drupalCreateUser(array(
      'access memcache statistics',
    ));
    $this
      ->drupalLogin($account);
    $this
      ->drupalGet('<front>');

    // Check that bootstrap statistics are visible.
    foreach ($cache_bootstrap_cids as $stat) {
      $key = $GLOBALS['drupal_test_info']['test_run_id'] . 'cache_bootstrap-' . $stat;
      $this
        ->assertRaw("<td>get</td><td>cache_bootstrap</td><td>{$key}</td>", t('Key @key found.', array(
        '@key' => $key,
      )));
    }

    // Clear boostrap cache items.
    foreach ($cache_bootstrap_cids as $stat) {
      _cache_get_object('cache_bootstrap')
        ->clear($stat);
    }
    $this
      ->drupalGet('<front>');

    // Check that early bootstrap statistics are still visible and are being
    // set too, after they were removed.
    foreach ($cache_bootstrap_cids as $stat) {
      $key = $GLOBALS['drupal_test_info']['test_run_id'] . 'cache_bootstrap-' . $stat;
      $this
        ->assertRaw("<td>get</td><td>cache_bootstrap</td><td>{$key}</td>", t('Key @key found (get).', array(
        '@key' => $key,
      )));
      $this
        ->assertRaw("<td>set</td><td>cache_bootstrap</td><td>{$key}</td>", t('Key @key found (set).', array(
        '@key' => $key,
      )));
    }

    // Clear the internal statistics store.
    $_dmemcache_stats = array(
      'all' => array(),
      'ops' => array(),
    );

    // Check that cache_set() statistics are being recorded.
    cache_set($this->default_cid, $this->default_value, $this->default_bin);
    $this
      ->assertEqual($_dmemcache_stats['all'][0][1], 'set', 'Set action recorded.');
    $this
      ->assertEqual($_dmemcache_stats['all'][0][4], 'hit', 'Set action successful.');
    $this
      ->assertNotNull($_dmemcache_stats['ops']['set']);

    // Clear the internal statistics store.
    $_dmemcache_stats = array(
      'all' => array(),
      'ops' => array(),
    );

    // Check that cache_get() statistics are being recorded.
    cache_get($this->default_cid, $this->default_bin);
    $this
      ->assertEqual($_dmemcache_stats['all'][0][1], 'get', 'Get action recorded.');
    $this
      ->assertEqual($_dmemcache_stats['all'][0][4], 'hit', 'Get action successful.');
    $this
      ->assertNotNull($_dmemcache_stats['ops']['get']);

    // Turn off memcache statistics.
    variable_set('show_memcache_statistics', FALSE);
    drupal_static_reset('dmemcache_stats_init');
    $this
      ->drupalGet('<front>');

    // Check that statistics are not recorded when the user has access, but
    // statistics are disabled.
    $this
      ->assertNoRaw('<div id="memcache-devel">', 'Statistics not present.');

    // Clear the internal statistics store.
    $_dmemcache_stats = array(
      'all' => array(),
      'ops' => array(),
    );

    // Confirm that statistics are not recorded for get()'s when disabled.
    cache_set($this->default_cid, $this->default_value, $this->default_bin);
    $this
      ->assertEqual($_dmemcache_stats, array(
      'all' => array(),
      'ops' => array(),
    ));

    // Clear the internal statistics store.
    $_dmemcache_stats = array(
      'all' => array(),
      'ops' => array(),
    );

    // Confirm that statistics are not recorded for set()'s when disabled.
    cache_get($this->default_cid, $this->default_bin);
    $this
      ->assertEqual($_dmemcache_stats, array(
      'all' => array(),
      'ops' => array(),
    ));
  }

}

Members

Name	Modifiers	Type	Description	Overrides
MemCacheStatisticsTestCase::getInfo	public static	function
MemCacheStatisticsTestCase::setUp	public	function
MemCacheStatisticsTestCase::testBootstrapStatistics	public	function	Checks for early bootstrap statistics.