public function testGetCacheProviderConfig()
{
$expected = array('cache' => FilePathCache::class, 'options' => array('dir' => 'somewhere'));
$serviceManager = new ServiceManager();
$config = array('my_provided_class.tmp' => $expected);
$assetManager = new AssetCacheManager($serviceManager, $config);
$reflectionMethod = new \ReflectionMethod(AssetCacheManager::class, 'getCacheProviderConfig');
$reflectionMethod->setAccessible(true);
$providerConfig = $reflectionMethod->invoke($assetManager, 'my_provided_class.tmp');
$this->assertEquals($expected, $providerConfig);
}