Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /home/app/htdocs/lidia/vendor/google/cloud/tests/unit/Spanner/Batch/BatchClientTest.php:37 Stack trace: #0 {main} thrown in /home/app/htdocs/lidia/vendor/google/cloud/tests/unit/Spanner/Batch/BatchClientTest.php on line 37