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Optimize test performance by reusing cached database in tracking_uri_mock#19258

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harupy merged 5 commits intomasterfrom
copilot/update-tracking-uri-mock
Dec 8, 2025
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Optimize test performance by reusing cached database in tracking_uri_mock#19258
harupy merged 5 commits intomasterfrom
copilot/update-tracking-uri-mock

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Copilot AI commented Dec 7, 2025

Related Issues/PRs

#xxx

What changes are proposed in this pull request?

The tracking_uri_mock fixture created a fresh SQLite database for each test, running migrations every time. This PR updates it to use the existing db_uri fixture, which copies a session-scoped pre-migrated database instead.

Changes:

  • Modified tracking_uri_mock to depend on db_uri instead of tmp_path
  • Added type hints: db_uri: str, request: pytest.FixtureRequest, -> Iterator[str | None]
  • Removed unused path_to_local_sqlite_uri import

Performance impact:

  • Session-scoped cached_db runs migrations once per test session
  • Function-scoped db_uri copies the cached database per test
  • Previous: N tests × migration time
  • New: 1 migration + N × copy time

How is this PR tested?

  • Existing unit/integration tests
  • New unit/integration tests
  • Manual tests

Verified with tests/test_version.py, tests/tracking/test_rest_tracking.py, and tests/tracking/_model_registry/test_utils.py.

Does this PR require documentation update?

  • No. You can skip the rest of this section.
  • Yes. I've updated:
    • Examples
    • API references
    • Instructions

Release Notes

Is this a user-facing change?

  • No. You can skip the rest of this section.
  • Yes. Give a description of this change to be included in the release notes for MLflow users.

What component(s), interfaces, languages, and integrations does this PR affect?

Components

  • area/tracking: Tracking Service, tracking client APIs, autologging
  • area/models: MLmodel format, model serialization/deserialization, flavors
  • area/model-registry: Model Registry service, APIs, and the fluent client calls for Model Registry
  • area/scoring: MLflow Model server, model deployment tools, Spark UDFs
  • area/evaluation: MLflow model evaluation features, evaluation metrics, and evaluation workflows
  • area/gateway: MLflow AI Gateway client APIs, server, and third-party integrations
  • area/prompts: MLflow prompt engineering features, prompt templates, and prompt management
  • area/tracing: MLflow Tracing features, tracing APIs, and LLM tracing functionality
  • area/projects: MLproject format, project running backends
  • area/uiux: Front-end, user experience, plotting, JavaScript, JavaScript dev server
  • area/build: Build and test infrastructure for MLflow
  • area/docs: MLflow documentation pages

How should the PR be classified in the release notes? Choose one:

  • rn/none - No description will be included. The PR will be mentioned only by the PR number in the "Small Bugfixes and Documentation Updates" section
  • rn/breaking-change - The PR will be mentioned in the "Breaking Changes" section
  • rn/feature - A new user-facing feature worth mentioning in the release notes
  • rn/bug-fix - A user-facing bug fix worth mentioning in the release notes
  • rn/documentation - A user-facing documentation change worth mentioning in the release notes

Should this PR be included in the next patch release?

  • Yes (this PR will be cherry-picked and included in the next patch release)
  • No (this PR will be included in the next minor release)
Original prompt

Update tracking_uri_mock in tests/conftest.py to use db_uri fixture in the same file for faster test execution


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Copilot AI self-assigned this Dec 7, 2025
@harupy harupy marked this pull request as ready for review December 7, 2025 10:13
Copilot AI review requested due to automatic review settings December 7, 2025 10:13
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- Changed tracking_uri_mock to use db_uri fixture instead of tmp_path
- Added proper type hints to tracking_uri_mock fixture
- Removed unused path_to_local_sqlite_uri import
- This improves test execution speed by reusing cached database

Co-authored-by: harupy <17039389+harupy@users.noreply.github.com>
Copilot AI changed the title [WIP] Update tracking_uri_mock to use db_uri fixture Optimize test performance by reusing cached database in tracking_uri_mock Dec 7, 2025
Copilot AI requested a review from harupy December 7, 2025 10:25
@github-actions github-actions bot added area/build Build and test infrastructure for MLflow rn/none List under Small Changes in Changelogs. labels Dec 7, 2025
Signed-off-by: harupy <17039389+harupy@users.noreply.github.com>
Signed-off-by: harupy <17039389+harupy@users.noreply.github.com>
@harupy harupy force-pushed the copilot/update-tracking-uri-mock branch from 336916e to 3086909 Compare December 8, 2025 01:58
Signed-off-by: harupy <17039389+harupy@users.noreply.github.com>
@harupy harupy added this pull request to the merge queue Dec 8, 2025
Merged via the queue into master with commit 7bfd6b4 Dec 8, 2025
62 of 65 checks passed
@harupy harupy deleted the copilot/update-tracking-uri-mock branch December 8, 2025 03:59
harupy added a commit to harupy/mlflow that referenced this pull request Dec 9, 2025
After mlflow#19258, tracking_uri_mock in tests/conftest.py now uses db_uri
and is autouse by default. This makes per-file tracking_uri fixtures
redundant.

Signed-off-by: harupy <17039389+harupy@users.noreply.github.com>
Copilot AI mentioned this pull request Dec 11, 2025
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