Understanding Page-structure and Selector Evidence

Page-structure and selector evidence checks whether important expected elements remain present after the update rather than judging success only from an HTTP status code.

Why structure matters

A page can return 200 while a template override, JavaScript error, permission problem, or markup change removes the content/control an administrator actually needs. Structure evidence gives QCUL another signal for obvious rendering regressions.

What selectors can and cannot prove

A selector/structure check proves that a chosen marker exists in the captured page; it does not prove every interaction behind that element works. Dynamic applications, role-specific screens, and workflow-dependent content still need manual review.

Respond to a structure warning

1. Open the exact laboratory route manually.
2. Compare the page to the production starting state and expected update behavior.
3. Check browser console/failed-resource evidence and logs.
4. Treat a meaningful missing structure as a review blocker until you understand it.

Read evidence in context

Use Understanding Page-structure and Selector Evidence together with the other evidence for the same tested item. A version check, route check, log message, screenshot, or file/database diff is strongest when it agrees with the surrounding evidence and your own reproduction in the private laboratory; no single signal should be treated as universal compatibility proof.

Community Discussion

Want to compare update-testing workflows, share practical tips, or discuss how you use this QCUL feature? Visit the QC Update Laboratory Community. For private support, bug reports, account-specific issues, or feature requests, use the QuantaCade support system.