public function MemCacheStatisticsTestCase::testBootstrapStatistics in Memcache API and Integration 7

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.

File

tests/memcache.test, line 912

Test cases for the memcache cache backend.

Class

MemCacheStatisticsTestCase

Test statistics generation.

Code

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(),
  ));
}