The cherry-picked model_picker test installed its own discord mock at
module-import time via a local _ensure_discord_mock(), overwriting
sys.modules['discord'] with a mock that lacked attributes other
gateway tests needed (Intents.default(), File, app_commands.Choice).
On pytest-xdist workers that collected test_discord_model_picker.py
first, the shared mock in tests/gateway/conftest.py got clobbered and
downstream tests failed with AttributeError / TypeError against
missing mock attrs. Classic sys.modules cross-test pollution (see
xdist-cross-test-pollution skill).
Fix:
- Extend the canonical _ensure_discord_mock() in tests/gateway/conftest.py
to cover everything the model_picker test needs: real View/Select/
Button/SelectOption classes (not MagicMock sentinels), an Embed
class that preserves title/description/color kwargs for assertion,
and Color.greyple.
- Strip the duplicated mock-setup block from test_discord_model_picker.py
and rely on the shared mock that conftest installs at collection
time.
Regression check:
scripts/run_tests.sh tests/gateway/ tests/hermes_cli/ -k 'discord or model or copilot or provider' -o 'addopts='
1291 passed (was 1288 passed + 3 xdist-ordered failures before this commit).
42d6ab5082