Think You Have Full Test Coverage? Here Are 5 Gaps Most Teams Miss

Advanced Topics, Events — Published June 20, 2025

You’ve got your unit tests. Your end-to-end flows. Maybe even 100% code coverage. But bugs still slip through.

That’s because full code coverage doesn’t guarantee full test coverage. Visual glitches, browser inconsistencies, and content drift often escape traditional automation — and they’re exactly the kinds of issues your users notice first.

In The Coverage Overlook, the kickoff session of our Testing Your Way: Code & No-Code Journeys webinar series, we explored five critical coverage gaps most teams miss — and how to close them with AI-powered visual testing and no-code tools.

1. Visual and Layout Bugs

Code-based assertions won’t catch when an element shifts, disappears, or overlaps. That’s where Visual AI steps in.

By analyzing the rendered UI — not just the DOM — Visual AI identifies layout issues, missing images, overlapping text, and subtle visual defects with a single line of code (or none at all).

“Visual AI can instantly catch layout shifts, missing elements, and new text that coded assertions would miss — all without the maintenance burden of custom locators.”
Tim Hinds, Applitools

2. Cross-Browser and Device Inconsistencies

Most test suites default to Chrome. But real users span dozens of devices and browsers.

Visual AI tools like Applitools Eyes can validate your app across multiple browsers and screen sizes in parallel — using a single test run. No custom scripting required.

3. Dynamic Content Variations

Personalized content, A/B tests, and location-based content are tough to verify with scripted tests alone.

Visual AI combined with flexible match algorithms can confirm layout structure while ignoring safe visual differences — helping your team catch what matters, without writing exceptions for every variant.

4. Lower-Priority Flows and Pages

Teams tend to focus their test coverage on critical flows — like checkout or login — and leave lower-traffic pages untested.

No-code tools like Applitools Autonomous make it easy to cover the rest. A built-in crawler can scan your site and establish visual baselines across dozens (or hundreds) of pages — all without writing a single test script.

5. Accessibility Gaps

Code coverage can’t catch color contrast failures, missing labels, or overlapping elements that make your UI inaccessible.

Visual AI can. And with upcoming enforcement of the European Accessibility Act, now is the time to start catching these issues early.

Watch the Full Session On-Demand: Code & No-Code Journeys: The Coverage Overlook

Closing the Gap

Code coverage still has value — but modern teams are shifting toward user-centered test coverage.

As shared in the session, teams like Eversana are combining code-based, no-code, and visual testing strategies to expand coverage, accelerate feedback, and reduce risk. With this blended approach, they’ve achieved:

  • 65% reduction in regression testing time
  • 750+ hours saved per month
  • 90% test stability
  • A unified testing culture across manual testers, developers, and QA

What’s Next in the Series?

The journey continues with The Maintenance Shortcut, where we explore how teams are reducing flaky tests, eliminating brittle locators, and cutting test maintenance with Visual AI and Autonomous.

Are you ready?

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