Regression testing in healthcare: HIPAA, HDS, and why your screenshots are a risk
On-premise regression testing is mandatory in healthcare. Protect patient data while testing interfaces under HIPAA, HDS, accessibility.
Read more →Visual Testing — All Articles & Tutorials
156 articles
Visual testing is a quality assurance discipline that consists in automatically comparing the rendered output of an interface between two versions, to detect regressions invisible to classic functional tests. Where a unit test verifies that a function returns the right value, a visual test verifies that what the user sees stays consistent with what was intended.
This page gathers articles from the Delta-QA blog dedicated to visual testing across all its facets: comparison methods (pixel by pixel, perceptual, structural), market tools, integration into CI/CD pipelines, measurable ROI for QA teams. Whether you are discovering the discipline or seeking to industrialize your practice, you will find here the guides, comparisons and field feedback to move forward.
Delta-QA is a no-code visual testing tool, with an On-Premise option — the purpose of this blog is also to honestly share the strengths and limits of each approach, without hiding the trade-offs.
Regression testing for Ruby on Rails: Why view specs are not enough and how visual testing fills the gap
Rails view specs don't verify actual rendering. Regression testing fits Rails philosophy and fills this critical testing gap.
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Mobile responsive regression testing: Why responsive design is no longer enough
60% of web traffic is mobile, yet classic responsive testing misses notches, dynamic bars, and touch targets that regression testing catches.
Read more →Regression testing for Remix: Why a full-stack framework makes visual testing even more critical
Remix's nested routes, streaming SSR, and transitions create visual challenges. Regression testing is essential for Remix applications.
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Automated regression testing and QA time: how to free up 60 to 80% of your team's time
Automated regression testing reduces manual verification time by 60-80%. Measurement methods, and why it frees QA teams without replacing them.
Read more →Regression testing with React, Vue and Angular: How to test without framework dependency
React, Vue, Angular each have unique regression testing specifics. Choose a pixel-level tool independent of your framework choice.
Read more →Regression testing for React Native: Mobile, the neglected child of visual testing
React Native produces mobile apps with React. But mobile regression testing is more complex than on the web: screen sizes, OS versions, pixel densities.
Read more →Regression testing for progressive web apps (PWA): Test them like apps, not websites
PWAs have specific visual states: online, offline, installation, splash screen, standalone. Regression testing ensures flawless native-like experience.
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PrestaShop regression testing: The perfect match your online store was missing
PrestaShop modules and themes break rendering regularly. Delta-QA brings no-code regression testing adapted to the PrestaShop ecosystem.
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