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.');
}