public function testBuildCache()
{
$finder = new Finder();
$finder->registerReader(new RawContentReader());
$cache = $this->getMockBuilder(ArrayAdapter::class)->setMethods(['saveDeferred'])->getMock();
$finder->registerCache($cache);
$cache->expects($this->exactly(3))->method('saveDeferred');
$finder->createQuery()->useLanguage(new French())->searchFor('test')->inDirectory($this->getInvoiceDirectory())->buildCache();
}