>       assert records  # parsed as a row; the router blocks JSON uploads earlier
E       assert []

tests/test_recipient_service.py:85: AssertionError
=========================== short test summary info ============================
FAILED tests/test_recipient_service.py::TestCsvParsing::test_alias_headers - ...
FAILED tests/test_recipient_service.py::TestCsvParsing::test_json_rejected_by_api_layer
2 failed, 33 passed in 0.19s