private function loadFixtureClass($className)
    {
        $fixture = new $className();

        if ($this->loader->hasFixture($fixture)) {
            unset($fixture);

            return;
        }

        $this->loader->addFixture(new $className());

        if ($fixture instanceof DependentFixtureInterface) {
            foreach ($fixture->getDependencies() as $dependency) {
                $this->loadFixtureClass($dependency);
            }
        }
    }