Several tests parametrized over (model, api_key, ...) tuples or raw
token strings, causing pytest to embed those values in the test ID
and print them in CI logs. Refactored each affected test to keep the
same coverage without putting key material into parametrize.
- audio_tests/test_audio_speech.py: split env-var keys into separate
azure/openai test functions sharing a helper; sync_mode parametrize
preserved.
- audio_tests/test_whisper.py: split into openai_whisper /
azure_whisper functions sharing a helper; response_format parametrize
preserved.
- local_testing/test_embedding.py: single-case parametrize inlined.
- proxy_unit_tests/test_user_api_key_auth.py: 5 header parametrize
cases split into 5 named tests sharing an _assert helper.
- proxy_unit_tests/test_proxy_utils.py: 4 api_key_value cases split
into 4 named tests.
- test_litellm/proxy/auth/test_user_api_key_auth.py: 5 key-prefix
cases (Bearer / Basic / lowercase bearer / raw / AWS SigV4) split
into 5 named tests.
Verified: black clean; 14 refactored unit tests pass; pytest collects
audio/embedding tests with safe IDs (no key material in test IDs).
