public function test_different_caches_have_different_prefixes()
{
$definition = cache_definition::load_adhoc(cache_store::MODE_APPLICATION, 'cachestore_apcu', 'phpunit_test');
$instance = new cachestore_apcu('Test', cachestore_apcu::unit_test_configuration());
$instance->initialise($definition);
$definition2 = cache_definition::load_adhoc(cache_store::MODE_APPLICATION, 'cachestore_apcu', 'phpunit_test2');
$instance2 = new cachestore_apcu('Test', cachestore_apcu::unit_test_configuration());
$instance2->initialise($definition2);
$instance->set('test1', 1);
$this->assertFalse($instance2->get('test1'));
$instance2->purge();
$this->assertSame(1, $instance->get('test1'));
}
