exclude subprocess mocks from coverage

Author: andrewsg

tests/unit/test_transfer_manager.py

@@ -35,9 +35,10 @@
 CHUNK_SIZE = 8
 
 
+# Used in subprocesses only, so excluded from coverage
 def _validate_blob_token_in_subprocess(
     maybe_pickled_blob, method_name, path_or_file, **kwargs
-):
+):  # pragma: no cover
     assert pickle.loads(maybe_pickled_blob) == BLOB_TOKEN_STRING
     assert method_name.endswith("filename")
     assert path_or_file.startswith("file")
@@ -619,9 +620,10 @@ def download_to_file(self, *args, **kwargs):
         return "SUCCESS"
 
 
+# Used in subprocesses only, so excluded from coverage
 def _validate_blob_token_in_subprocess_for_chunk(
     maybe_pickled_blob, filename, **kwargs
-):
+):  # pragma: no cover
     blob = pickle.loads(maybe_pickled_blob)
     assert isinstance(blob, _PickleableMockBlob)
     assert filename.startswith("file")