diff -r 07239de796bb -r e756a8c72c3d cms/drupal/modules/simpletest/tests/cache.test
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/cms/drupal/modules/simpletest/tests/cache.test	Fri Sep 08 12:04:06 2017 +0200
@@ -0,0 +1,437 @@
+<?php
+
+class CacheTestCase extends DrupalWebTestCase {
+  protected $default_bin = 'cache';
+  protected $default_cid = 'test_temporary';
+  protected $default_value = 'CacheTest';
+
+  /**
+   * 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 CacheSavingCase extends CacheTestCase {
+  public static function getInfo() {
+    return array(
+      'name' => 'Cache saving test',
+      'description' => 'Check our variables are saved and restored the right way.',
+      'group' => 'Cache'
+    );
+  }
+
+  /**
+   * 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, 'cache');
+    $cache = cache_get('test_object', 'cache');
+    $this->assertTrue(isset($cache->data) && $cache->data == $test_object, 'Object is saved and restored properly.');
+  }
+
+  /**
+   * Check or a variable is stored and restored properly.
+   */
+  function checkVariable($var) {
+    cache_set('test_var', $var, 'cache');
+    $cache = cache_get('test_var', 'cache');
+    $this->assertTrue(isset($cache->data) && $cache->data === $var, format_string('@type is saved and restored properly.', array('@type' => ucfirst(gettype($var)))));
+  }
+
+  /**
+   * Test no empty cids are written in cache table.
+   */
+  function testNoEmptyCids() {
+    $this->drupalGet('user/register');
+    $this->assertFalse(cache_get(''), 'No cache entry is written with an empty cid.');
+  }
+}
+
+/**
+ * Test cache_get_multiple().
+ */
+class CacheGetMultipleUnitTest extends CacheTestCase {
+
+  public static function getInfo() {
+    return array(
+      'name' => 'Fetching multiple cache items',
+      'description' => 'Confirm that multiple records are fetched correctly.',
+      'group' => 'Cache',
+    );
+  }
+
+  function setUp() {
+    $this->default_bin = 'cache_page';
+    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), 'Item 1 is cached.');
+    $this->assertTrue($this->checkCacheExists('item2', $item2), '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, 'Item was returned from cache successfully.');
+    $this->assertEqual($items['item2']->data, $item2, '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, 'Item was returned from cache successfully.');
+    $this->assertFalse(isset($items['item2']), 'Item was not returned from the cache.');
+    $this->assertTrue(count($items) == 1, 'Only valid cache entries returned.');
+  }
+}
+
+/**
+ * Test cache clearing methods.
+ */
+class CacheClearCase extends CacheTestCase {
+  public static function getInfo() {
+    return array(
+      'name' => 'Cache clear test',
+      'description' => 'Check our clearing is done the proper way.',
+      'group' => 'Cache'
+    );
+  }
+
+  function setUp() {
+    $this->default_bin = 'cache_page';
+    $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),
+                      '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),
+                      '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),
+                      '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),
+                      '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),
+                      '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),
+                      '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),
+                      '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),
+                       'Two cache entries removed after clearing with an array.');
+
+    $this->assertTrue($this->checkCacheExists('test_cid_clear3', $this->default_value),
+                      '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),
+                      '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),
+                       '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), format_string('All cache entries removed from @bin.', array('@bin' => $bin)));
+    }
+  }
+
+  /**
+   * Test DrupalDatabaseCache::isValidBin().
+   */
+  function testIsValidBin() {
+    // Retrieve existing cache bins.
+    $valid_bins = array('cache', 'cache_filter', 'cache_page', 'cache_boostrap', 'cache_path');
+    $valid_bins = array_merge(module_invoke_all('flush_caches'), $valid_bins);
+    foreach ($valid_bins as $id => $bin) {
+      $cache = _cache_get_object($bin);
+      if ($cache instanceof DrupalDatabaseCache) {
+        $this->assertTrue($cache->isValidBin(), format_string('Cache bin @bin is valid.', array('@bin' => $bin)));
+      }
+    }
+
+    // Check for non-cache tables and invalid bins.
+    $invalid_bins = array('block', 'filter', 'missing_table', $this->randomName());
+    foreach ($invalid_bins as $id => $bin) {
+      $cache = _cache_get_object($bin);
+      if ($cache instanceof DrupalDatabaseCache) {
+        $this->assertFalse($cache->isValidBin(), format_string('Cache bin @bin is not valid.', array('@bin' => $bin)));
+      }
+    }
+  }
+
+  /**
+   * Test minimum cache lifetime.
+   */
+  function testMinimumCacheLifetime() {
+    // Set a minimum/maximum cache lifetime.
+    $this->setupLifetime(300);
+    // Login as a newly-created user.
+    $account = $this->drupalCreateUser(array());
+    $this->drupalLogin($account);
+
+    // Set two cache objects in different bins.
+    $data = $this->randomName(100);
+    cache_set($data, $data, 'cache', CACHE_TEMPORARY);
+    $cached = cache_get($data);
+    $this->assertTrue(isset($cached->data) && $cached->data === $data, 'Cached item retrieved.');
+    cache_set($data, $data, 'cache_page', CACHE_TEMPORARY);
+
+    // Expire temporary items in the 'page' bin.
+    cache_clear_all(NULL, 'cache_page');
+
+    // Since the database cache uses REQUEST_TIME, set the $_SESSION variable
+    // manually to force it to the current time.
+    $_SESSION['cache_expiration']['cache_page'] = time();
+
+    // Items in the default cache bin should not be expired.
+    $cached = cache_get($data);
+    $this->assertTrue(isset($cached->data) && $cached->data == $data, 'Cached item retrieved');
+
+    // Despite the minimum cache lifetime, the item in the 'page' bin should
+    // be invalidated for the current user.
+    $cached = cache_get($data, 'cache_page');
+    $this->assertFalse($cached, 'Cached item was invalidated');
+  }
+}
+
+/**
+ * Test cache_is_empty() function.
+ */
+class CacheIsEmptyCase extends CacheTestCase {
+  public static function getInfo() {
+    return array(
+      'name' => 'Cache emptiness test',
+      'description' => 'Check if a cache bin is empty after performing clear operations.',
+      'group' => 'Cache'
+    );
+  }
+
+  function setUp() {
+    $this->default_bin = 'cache_page';
+    $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), '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), '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), 'The cache bin is empty');
+  }
+}