function ThemeRegistryTestCase::testRaceCondition

Tests the behavior of the theme registry class.

File

modules/simpletest/tests/theme.test, line 575

Class

ThemeRegistryTestCase

Tests for the ThemeRegistry class.

Code

function testRaceCondition() {
    $_SERVER['REQUEST_METHOD'] = 'GET';
    $cid = 'test_theme_registry';
    // Directly instantiate the theme registry, this will cause a base cache
    // entry to be written in __construct().
    $registry = new ThemeRegistry($cid, 'cache');
    $this->assertTrue(cache_get($cid), 'Cache entry was created.');
    // Trigger a cache miss for an offset.
    $this->assertTrue($registry['theme_test_template_test'], 'Offset was returned correctly from the theme registry.');
    // This will cause the ThemeRegistry class to write an updated version of
    // the cache entry when it is destroyed, usually at the end of the request.
    // Before that happens, manually delete the cache entry we created earlier
    // so that the new entry is written from scratch.
    cache_clear_all($cid, 'cache');
    // Destroy the class so that it triggers a cache write for the offset.
    unset($registry);
    $this->assertTrue(cache_get($cid), 'Cache entry was created.');
    // Create a new instance of the class. Confirm that both the offset
    // requested previously, and one that has not yet been requested are both
    // available.
    $registry = new ThemeRegistry($cid, 'cache');
    $this->assertTrue($registry['theme_test_template_test'], 'Offset was returned correctly from the theme registry');
    $this->assertTrue($registry['theme_test_template_test_2'], 'Offset was returned correctly from the theme registry');
}