Debug Playwright Test Failures

Debug Playwright test failures in TestDino with embedded trace viewer, screenshots, video playback, error grouping, and AI root cause analysis.

TestDino collects evidence from each test execution: screenshots, videos, traces, console logs, and error details. Understand failures without re-running tests locally.

Evidence Types

Evidence	What it shows	When to use	Guide
Screenshots	Visual state at failure point	UI layout issues, missing elements	Visual Evidence
Video	Full test execution recording	Timing issues, unexpected interactions	Visual Evidence
Trace	Step-by-step execution with network and DOM	Complex failures, race conditions	Trace Viewer
Console	Browser console output	JavaScript errors, API failures	-
Error details	Error message and stack trace	Assertion failures, exceptions	Error Grouping

Where to Find Evidence

Open a test run and click on any failed test. The test case details page shows:

1. KPI tiles: Status, runtime, retry attempts
2. Evidence tabs: One tab per attempt (Run, Retry 1, Retry 2)

Each evidence tab contains:

• Error details with stack trace
• Test steps with timing
• Screenshots
• Console output
• Video player
• Trace viewer link
• Visual comparison (for screenshot tests)

Debugging Workflow

1. Check the error message

   Start with the error details. The message often points to the issue: assertion mismatch, element not found, or timeout.

2. Check the error group

   Look at the error category (assertion failure, timeout, element not found, etc.) to determine whether to fix code, update selectors, or stabilize the test.

3. Look at screenshots

   Screenshots show the UI state at failure. Compare with expected behavior.

4. Watch the video

   Videos reveal timing issues and unexpected interactions that screenshots miss.

5. Open the trace

   Traces provide the most detail: every action, network request, and DOM change. Use traces for complex failures.

6. Check console logs

   Console output shows JavaScript errors, failed API calls, and application logs.

Next Steps

Trace Viewer

Step-by-step execution analysis

Visual Evidence

Screenshots and videos

Error Grouping

Find patterns across failures

Test Cases

Full test case documentation