Fatal error: Uncaught Error: Class "PHPUnit_Framework_TestCase" not found in E:\www\API\mod_send\lib\aliyun-php-sdk-dm\aliyun-php-sdk-core\UnitTest\Regions\EndpointProviderTest.php:22 Stack trace: #0 {main} thrown in E:\www\API\mod_send\lib\aliyun-php-sdk-dm\aliyun-php-sdk-core\UnitTest\Regions\EndpointProviderTest.php on line 22