feat: support for pytest-xdist traceparent propagation#1701
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jirikuncar merged 6 commits intomainfrom Feb 10, 2026
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Pull request overview
Adds support for running the Logfire pytest plugin under pytest-xdist by propagating trace context to worker processes and validating xdist-specific span behavior in integration tests.
Changes:
- Add a
pytest_xdist_setupnodeshook to injectTRACEPARENT/TRACESTATEinto the controller environment before workers spawn. - Add xdist worker metadata (
pytest.xdist.worker_id/pytest.xdist.worker_count) and worker-aware session span templates. - Update pytester-based tests to write/read per-worker span capture files and add coverage for xdist vs non-xdist behavior.
Reviewed changes
Copilot reviewed 2 out of 2 changed files in this pull request and generated 3 comments.
| File | Description |
|---|---|
logfire/_internal/integrations/pytest.py |
Injects trace context for xdist workers and annotates session spans with xdist metadata. |
tests/otel_integrations/test_pytest_plugin.py |
Captures spans per xdist worker and adds assertions for worker/controller span relationships and attributes. |
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pytest --logfire -n auto