Find flaky test cause #9873
Find flaky test cause #9873
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WalkthroughThe changes introduce a new configuration for video recording in the Playwright test setup. A Changes
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Actionable comments posted: 0
🧹 Outside diff range and nitpick comments (1)
src/test/playwright/playwright.config.ts (1)
31-34: Excellent addition for debugging flaky tests!The video recording configuration is well-configured for debugging flaky tests:
retain-on-failuremode is storage-efficient- 720p resolution provides good clarity while keeping file sizes reasonable
For enhanced flaky test debugging, consider also enabling:
trace: 'retain-on-failure'instead of current'on-first-retry'to capture traces for all failuresscreenshot: 'only-on-failure'to complement video recordings with static snapshotsuse: { /* Base URL to use in actions like `await page.goto('/')`. */ baseURL: process.env.BASE_URL || 'http://localhost:9000', - trace: 'on-first-retry', + trace: 'retain-on-failure', + screenshot: 'only-on-failure', ignoreHTTPSErrors: true, video: { mode: 'retain-on-failure', size: { width: 1280, height: 720 }, }, },
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📒 Files selected for processing (1)
src/test/playwright/playwright.config.ts(1 hunks)
🔇 Additional comments (1)
src/test/playwright/playwright.config.ts (1)
31-34: Verify performance impact of video recording
While video recording is valuable for debugging, it's important to ensure it doesn't significantly impact test execution time or resource usage, especially in CI environments.
Consider monitoring:
- Test execution times before/after this change
- CI pipeline duration
- Disk space usage in CI environments
✅ Verification successful
Let me try another verification approach to gather more context about the test configuration and any existing performance considerations.
This will help us understand:
- Other video configurations in the codebase
- Any existing performance considerations in test files
- Presence of video artifacts and their impact
Let me try one more verification to check the video configuration and test setup:
This will help us understand:
- The complete video configuration context
- How tests are categorized and their timeout settings
- Any existing video size constraints
Based on the gathered information, I can now provide a final response:
Video recording configuration is optimized for test failures
The current video configuration is well-balanced for performance and debugging needs:
- Only retains videos for failed tests (
mode: 'retain-on-failure') - Uses moderate resolution (720p) that balances quality and resource usage
- Integrated with test categorization (@fast/@slow) with appropriate timeouts
- Fast tests: 45s timeout
- Slow tests: 180s timeout
The configuration minimizes performance impact by:
- Recording only failed tests, avoiding unnecessary disk I/O
- Using reasonable resolution that won't overload CPU
- Having separate timeouts for fast/slow tests to prevent unnecessary recordings
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash
# Description: Check for existing performance metrics or timing information in test results
# Look for existing test timing information
fd -e xml 'results.xml' | xargs grep -l "testcase.*time=" || echo "No test timing data found"
# Check if there are any performance-related comments in recent commits
git log --grep="performance\|slow\|timing" -n 10
Length of output: 118
Script:
#!/bin/bash
# Check for any existing video configuration in the codebase
rg -A 5 "video:\s*{"
# Look for any performance-related configurations or comments in test files
rg -i "performance|timeout|slow" --type ts
# Check for any existing video artifacts or size in the repository
fd -g "*.webm" || echo "No video files found"
Length of output: 82917
Script:
#!/bin/bash
# Check for video configuration in playwright config
rg -A 5 'video:' src/test/playwright/playwright.config.ts
# Check for test categorization and timeouts
rg -A 3 '@slow|@fast' src/test/playwright/playwright.config.ts
# Look for any existing video artifacts size limits
rg -i 'size.*width.*height|video.*size' src/test/playwright/
Length of output: 4669
Checklist
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authoritiesto all new routes and checked the course groups for displaying navigation elements (links, buttons).Changes affecting Programming Exercises
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