From 6c9436abbf5df740539215354b2eaa1b6893d2cf Mon Sep 17 00:00:00 2001
From: Angie Byron <webchick@24967.no-reply.drupal.org>
Date: Sun, 28 Jun 2009 01:00:42 +0000
Subject: #333171 by catch: Provide cache_get_multiple() and allow clearing of
 multiple cache IDs at once (with tests).

---
 modules/simpletest/tests/cache.test | 89 ++++++++++++++++++++++++++++++++++++-
 1 file changed, 88 insertions(+), 1 deletion(-)

(limited to 'modules/simpletest')

diff --git a/modules/simpletest/tests/cache.test b/modules/simpletest/tests/cache.test
index 638747bfd..8ba647ba0 100644
--- a/modules/simpletest/tests/cache.test
+++ b/modules/simpletest/tests/cache.test
@@ -162,6 +162,56 @@ class CacheSavingCase extends CacheTestCase {
   }
 }
 
+/**
+ * Test cache_get_multiple().
+ */
+class CacheGetMultipleUnitTest extends CacheTestCase {
+
+  public static function getInfo() {
+    return array(
+      'name' => t('Fetching multiple cache items'),
+      'description' => t('Confirm that multiple records are fetched correctly.'),
+      'group' => t('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), 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 CacheClearCase extends CacheTestCase {
   public static function getInfo() {
     return array(
@@ -224,4 +274,41 @@ class CacheClearCase extends CacheTestCase {
                       || $this->checkCacheExists('test_cid_clear2', $this->default_value),
                       t('Two caches removed after clearing cid substring with wildcard true.'));
   }
-}
\ No newline at end of file
+
+  /**
+   * 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.'));
+  }
+}
-- 
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