fix test selection

Author: pmeier

.circleci/config.yml

@@ -388,7 +388,9 @@ jobs:
           name: Enable JPEG ref tests
           command: echo 'export PYTORCH_TEST_JPEG_REF=1' >> $BASH_ENV
       - run_tests_selective:
-          file_or_dir: test/test_image.py::TestJPEGRef
+          file_or_dir: >
+            test/test_image.py::test_encode_jpeg
+            test/test_image.py::test_write_jpeg
 
   binary_linux_wheel:
     <<: *binary_common