feat: implement per-test timeout limits for slow test investigation #780
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- Add timeout-controlled poe tasks for different test scenarios - Update CI to use per-test timeout limits (300s per test, 1hr session) - Create slow test analysis script to identify problematic tests - Document timeout configuration strategy - Addresses Windows CI timeout issues by providing granular timeout control Co-Authored-By: AJ Steers <[email protected]>
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📝 WalkthroughWalkthroughAdds per-test and session timeout flags to the CI pytest step, introduces documentation on timeout configuration, removes the hardcoded pytest timeout from pyproject addopts and adds Poe test tasks, and adds a script that prints a hard-coded slow-test report. Changes
Sequence Diagram(s)sequenceDiagram
autonumber
actor Developer
participant Poe as Poe Tasks (pyproject.toml)
participant Pytest as pytest
participant Timeout as pytest-timeout plugin
Developer->>Poe: Run test-* task
Poe->>Pytest: Invoke pytest with flags (e.g. --timeout=300 / --session-timeout=3600)
Pytest->>Timeout: Initialize timeout settings
rect rgba(230,240,255,0.5)
note right of Timeout: Enforce per-test timeouts (abort individual tests)
Timeout-->>Pytest: Abort test > per-test limit
end
rect rgba(240,230,255,0.5)
note right of Timeout: Enforce session timeout (abort whole run)
Timeout-->>Pytest: Abort session > suite limit
end
sequenceDiagram
autonumber
actor GitHubActions as GitHub Actions
participant Workflow as CI Workflow
participant Pytest as pytest
participant Timeout as pytest-timeout plugin
GitHubActions->>Workflow: Trigger Pytest job
Workflow->>Pytest: pytest --timeout=300 --session-timeout=3600
Pytest->>Timeout: Configure per-test and session timeouts
Timeout-->>Pytest: Enforce timing constraints
Estimated code review effort🎯 3 (Moderate) | ⏱️ ~20 minutes Possibly related PRs
Would you like me to suggest consolidating timeout values between CI and Poe tasks to avoid divergence, wdyt? Pre-merge checks (3 passed)✅ Passed checks (3 passed)
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Actionable comments posted: 2
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⚠️ Outside diff range comments (2)
.github/workflows/python_pytest.yml (1)
45-53: Propagate timeouts to the other jobs for consistency.As written, only the matrix job enforces the per-test and session timeouts; fast/no-creds do not. Shall we add the same flags there to match the stated scope, wdyt?
Apply this diff:
@@ - - name: Run Pytest with Coverage (Fast Tests Only) + - name: Run Pytest with Coverage (Fast Tests Only) timeout-minutes: 60 env: GCP_GSM_CREDENTIALS: ${{ secrets.GCP_GSM_CREDENTIALS }} run: > - poetry run coverage run -m pytest - --durations=5 --exitfirst + poetry run coverage run -m pytest + --durations=5 --exitfirst + --timeout=300 --session-timeout=3600 -m "not slow and not requires_creds and not linting and not flaky" @@ - - name: Run Pytest (No-Creds) + - name: Run Pytest (No-Creds) timeout-minutes: 60 env: # Force this to a blank value. GCP_GSM_CREDENTIALS: "" run: > - poetry run coverage run -m pytest - --durations=5 --exitfirst + poetry run coverage run -m pytest + --durations=5 --exitfirst + --timeout=300 --session-timeout=3600 -m "not requires_creds and not linting and not super_slow and not flaky"Also applies to: 111-119, 185-195
pyproject.toml (1)
87-95: Default per-test timeout still 600s in config; intentional?
addoptssets--timeout=600, but the PR summary says 300s replaces the previous 600s. If the goal is 300s by default, shall we update this (and/or addsession_timeout = 3600) so local runs match CI, wdyt?-[tool.pytest.ini_options] +# Pytest config +[tool.pytest.ini_options] @@ -addopts = "-rs --strict-markers --timeout=600 --junit-xml=build/test-results/test-results.xml" +addopts = "-rs --strict-markers --timeout=300 --junit-xml=build/test-results/test-results.xml" +session_timeout = 3600
🧹 Nitpick comments (7)
.github/workflows/python_pytest.yml (1)
164-166: Minor: matrix runner label casing can be brittle.
runs-on: "${{ matrix.os }}-latest"withUbuntu/WindowsyieldsUbuntu-latest/Windows-latest. GitHub labels are typically lowercase (ubuntu-latest,windows-latest). It’s usually fine, but do you want to standardize to lowercase to avoid edge cases, wdyt?scripts/analyze_slow_tests.py (2)
38-43: Keep the numbers DRY and in sync with config.These recommendations will drift from pyproject/workflow over time. Would you factor them into named constants and/or read from env/pyproject so the script reflects reality, wdyt?
- print(" - Current global timeout: 600 seconds (10 minutes)") - print(" - Recommended per-test timeout for integration tests: 180 seconds (3 minutes)") - print(" - Recommended per-test timeout for unit tests: 60 seconds (1 minute)") - print(" - Session timeout for entire test suite: 3600 seconds (1 hour)") + DEFAULT_PER_TEST_TIMEOUT_S = 600 + RECOMMENDED_IT_TIMEOUT_S = 180 + RECOMMENDED_UNIT_TIMEOUT_S = 60 + SESSION_TIMEOUT_S = 3600 + print(f" - Current global timeout: {DEFAULT_PER_TEST_TIMEOUT_S} seconds (10 minutes)") + print(f" - Recommended per-test timeout for integration tests: {RECOMMENDED_IT_TIMEOUT_S} seconds (3 minutes)") + print(f" - Recommended per-test timeout for unit tests: {RECOMMENDED_UNIT_TIMEOUT_S} seconds (1 minute)") + print(f" - Session timeout for entire test suite: {SESSION_TIMEOUT_S} seconds (1 hour)")
15-36: Prefer dynamic discovery over a hard-coded slow test list.Since you already added a poe task that collects slow tests, would you auto-collect here too to avoid maintenance overhead, wdyt?
+import subprocess +import sys @@ - slow_tests = [ - "tests/integration_tests/test_all_cache_types.py::test_faker_read " - "(4 parametrized variants)", - "tests/integration_tests/test_all_cache_types.py::test_append_strategy", - "tests/integration_tests/test_all_cache_types.py::test_replace_strategy", - "tests/integration_tests/test_all_cache_types.py::test_merge_strategy", - "tests/integration_tests/test_all_cache_types.py::test_auto_add_columns", - "tests/integration_tests/test_source_faker_integration.py::test_replace_strategy", - "tests/integration_tests/test_source_faker_integration.py::test_append_strategy", - "tests/integration_tests/test_source_faker_integration.py::test_merge_strategy " - "(2 parametrized variants)", - "tests/integration_tests/test_docker_executable.py::test_replace_strategy", - "tests/integration_tests/test_docker_executable.py::test_append_strategy", - "tests/integration_tests/test_docker_executable.py::test_merge_strategy " - "(2 parametrized variants)", - ] + cmd = ["pytest", "tests/integration_tests/", "--collect-only", "-q", "-m", "slow"] + res = subprocess.run(cmd, capture_output=True, text=True) + if res.returncode != 0: + print("Failed to collect slow tests:\n", res.stderr, file=sys.stderr) + sys.exit(res.returncode) + slow_tests = [line.strip() for line in res.stdout.splitlines() if "::" in line]pyproject.toml (2)
186-189: Align poe tasks with the timeout strategy.Do you want these tasks to also enforce the session cap and the per-test limits for unit tests, wdyt?
-test-unit-tests = { shell = "pytest tests/unit_tests/" } -test-with-short-timeout = { shell = "pytest --timeout=300 --durations=10" } -test-integration-timeout = { shell = "pytest tests/integration_tests/ --timeout=180 --durations=10 -m 'not super_slow'" } +test-unit-tests = { shell = "pytest tests/unit_tests/ --timeout=60 --session-timeout=3600" } +test-with-short-timeout = { shell = "pytest --timeout=300 --session-timeout=3600 --durations=10" } +test-integration-timeout = { shell = "pytest tests/integration_tests/ --timeout=180 --session-timeout=3600 --durations=10 -m 'not super_slow'" } test-slow-analysis = { shell = "pytest tests/integration_tests/ --collect-only --durations=0 -m slow" }
58-75: Doc claims v2.4.0; pyproject pins ^2.3.1.
--session-timeoutexists since 2.3.0, so you’re functionally fine, but the stated version in docs doesn’t match the dependency. Want to bump to^2.4.0or adjust the doc to say “>=2.3.0”, wdyt? (pypi.org)-pytest-timeout = "^2.3.1" +pytest-timeout = "^2.4.0"docs/timeout_configuration.md (2)
7-17: Clarify per-test timeout: 600s default vs 300s in CI.Current text states “Global test timeout: 600s,” but the workflow enforces
--timeout=300for the matrix job. Would you add a short note that CI overrides the default to 300s (and where), wdyt?
24-33: Include session-timeout examples for parity.Since CI uses
--session-timeout=3600, do you want to include it in the examples (and/or showsession_timeout = 3600in pytest ini), wdyt?
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- GitHub Check: Pytest (No Creds)
- GitHub Check: Pytest (All, Python 3.11, Windows)
- GitHub Check: Pytest (All, Python 3.10, Ubuntu)
- GitHub Check: Pytest (All, Python 3.10, Windows)
- GitHub Check: Pytest (All, Python 3.11, Ubuntu)
- GitHub Check: Pytest (Fast)
🔇 Additional comments (1)
.github/workflows/python_pytest.yml (1)
190-194: Good addition: enforce per-test and session caps in CI.
--timeout=300and--session-timeout=3600are valid pytest-timeout flags; session timeout was added in v2.3.0, so they’ll work with >=2.3.x. (pypi.org, github.com)Given the PR summary says “apply to all pytest jobs,” do you also want these flags on pytest-fast and pytest-no-creds for consistency, wdyt?
| - **Global test timeout**: 600 seconds (10 minutes) per test | ||
| - **CI job timeout**: 60 minutes for pytest jobs | ||
| - **pytest-timeout plugin**: v2.4.0 installed | ||
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Version mismatch: plugin version in doc vs dependency.
Doc says “pytest-timeout v2.4.0 installed,” but pyproject pins ^2.3.1. Either bump the dep or reword to “pytest-timeout >=2.3.0,” wdyt? Note: --session-timeout is available since 2.3.0. (pypi.org)
🤖 Prompt for AI Agents
In docs/timeout_configuration.md around lines 7 to 10, the documented
pytest-timeout version (v2.4.0) conflicts with pyproject which pins ^2.3.1;
update the doc to match the dependency by either changing the text to
“pytest-timeout >=2.3.0” (or “pytest-timeout v2.3.x”) or bumping the pyproject
dependency to >=2.4.0, and mention that --session-timeout is available since
2.3.0 if you keep the lower bound.
| ### Session Timeouts | ||
| - **Full test suite**: 3600 seconds (1 hour maximum) | ||
| - **Windows CI**: Limited to unit tests only to prevent timeouts | ||
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Windows scope is inaccurate.
Doc says “Windows CI: Limited to unit tests,” but the workflow runs the full matrix on Windows. Shall we update this to reflect current behavior, wdyt?
🤖 Prompt for AI Agents
In docs/timeout_configuration.md around lines 18 to 21, the "Windows CI: Limited
to unit tests only" bullet is inaccurate; replace that line to state that
Windows CI runs the full workflow/matrix (not just unit tests) and is subject to
the same session timeout as other platforms (e.g., "Windows CI: Runs full
matrix; subject to the same 3600s session timeout"), and ensure the phrasing
matches surrounding bullets and CI behavior.
- Remove conflicting --timeout=600 from addopts to allow CI timeout args to work - Prevents pytest-timeout plugin malfunction that caused 60-minute GitHub Actions timeout - Allows per-test timeout (300s) and session timeout (3600s) to work correctly - Update comments to reflect timeout handling by CI workflow Co-Authored-By: AJ Steers <[email protected]>
1 participant
feat: implement per-test timeout limits for slow test investigation
Summary
This PR implements per-test timeout limits using the existing pytest-timeout plugin to address Windows CI timeout issues. The changes include:
--timeout=300(5 minutes per test) and--session-timeout=3600(1 hour total) to all pytest jobs@pytest.mark.slowThe implementation leverages pytest-timeout plugin v2.4.0 already installed in PyAirbyte to provide granular timeout control that should prevent the 1-hour CI timeouts currently experienced on Windows.
Review & Testing Checklist for Human
poetry run poe test-integration-timeoutandpoetry run poe test-with-short-timeoutto ensure they work correctly and respect timeout limitsNotes
Test Analysis: The slow test analysis script identifies 11 integration tests marked as
@pytest.mark.slow, primarily involving source-faker connector with multiple cache types and write strategies. These tests involve 200-300 record scales and are parametrized across DuckDB, Postgres, BigQuery, and Snowflake caches.Timeout Strategy:
test-integration-timeouttask with 180s limit for faster feedbackRequested by AJ Steers (@aaronsteers) in Devin session: https://app.devin.ai/sessions/2cd62f25e51440258413a76d0e0763c6
Summary by CodeRabbit
New Features
Tests
Documentation
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