function CacheClearCase::testMinimumCacheLifetime

Test minimum cache lifetime.

File

modules/simpletest/tests/cache.test, line 370

Class

CacheClearCase

Test cache clearing methods.

Code

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');
}