The most common sources of noisy or failing visual tests, and the suite settings that fix them:
- Dynamic Content - ignore elements that change on every visit
- Flaky rendering - tune the threshold for rendering-level noise
- Authentication & Network - snapshot pages behind a login
- Lazy loading - wait for late-loading content before capturing
Dynamic Content
Stop dynamic and animated page fragments from generating visual diffs on every run by ignoring them with XPath or CSS selectors.
Flaky rendering
Deal with false-positive visual diffs caused by rendering noise - antialiasing, shadows, and rounded corners - by tuning the diff threshold.
Authentication & Network
Run visual tests on pages behind a login - configure request headers, cookies, and local storage keys so snapshots capture authenticated views.
Lazy loading
Handle lazy-loaded and late-rendering content in visual tests with wait-for-selector, delays, and timeouts.