public function _dependencies(CacheAbstract $cache) { $cache->start('parent', 1); $cache->addDependency(); echo 'parent start/'; $this->assertFalse($cache->appendCallback('nawreanaweroi')); // invalid $cache->appendCallback('cacheCallback'); $cache->start('child', 2); echo '|child first|'; $cache->end(false); echo 'parent end/'; $cache->end(false); }