Software Testing Blog

The official Testomat.io blog featuring software testing tutorials, test automation insights, and QA best practices.

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Vitest vs Jest: A Practical Comparison For 2026

When you’re starting a new JavaScript project, or fixing a Jest config that breaks every time you add an ESM-only package, the Vitest vs Jest question keeps coming up in team discussions.

Mykhailo Poliarush

Jun 10, 26

Continuous penetration testing software interface with a security shield icon

AI testing api testing automated testing ci\cd DevOps test management testing guides

Continuous Penetration Testing: Guide for QA and DevOps Teams

When your team deploys code every day, you trust your CI pipeline to catch the bugs. You run unit tests, integration tests, and code reviews. But there’s a scenario most security programs haven’t been ready for. Continuous deployment moves faster than your pentest schedule the moment your team starts to scale.

Tetiana Khomenko

Jun 04, 26

qa process testing guides testing types

Scalability Testing: What It Is, Why It Matters, and How to Do It Right

Your application works fine with 100 users. But what happens when 10,000 show up at once? That’s the question scalability testing is designed to answer before real users find out the hard way. If you’re building software that needs to grow, scalability testing is one of the most important things you can do before a […]

Mykhailo Poliarush

May 29, 26

qa process

How to Reduce QA Testing Costs Without Cutting Quality

Testing budgets are under pressure everywhere. Yet when teams cut QA the wrong way — fewer testers, skipped test cycles, deferred automation — defects escape to production and cost far more to fix than they would have in a sprint. Understanding the full defect management process helps teams see exactly where those extra costs accumulate. […]

Tetiana Khomenko

May 25, 26

AI testing

Meet Automated Exploratory Testing

For years, we treated automated tests as a regression safety net. That’s what they’re good at. The problem is simple: a test only walks the path you wrote for it. Hardcoded. Repeatable. Blind to anything outside the script. A test can pass on a screen where a real user is hopelessly lost, because the test […]

Michael Bodnarchuk

May 20, 26

AI testing

What makes Explorbot so fast

Explorbot is an open-source AI agent that explores web applications on its own. The first question people ask when they watch it run is always the same: how does it think so fast? They expect AI tools to be slow, hungry, and expensive. Explorbot is none of those things. The short answer is that Explorbot […]

Michael Bodnarchuk

May 20, 26

automation testing qa process

QA Metrics: Software Testing Metrics That Actually Matter

Most QA teams track too many metrics, act on too few, and report on ones that look good rather than ones that reveal problems. A dashboard full of green numbers that hides a deteriorating codebase is worse than no dashboard at all — it creates false confidence. This article covers the software testing metrics worth […]

Mykhailo Poliarush

May 16, 26

Insights

Shift-Left Testing: Definition, Strategy, and Implementation

A bug found in production costs roughly 30 times more to fix than the same bug caught during development. That number has been cited since at least the 1980s — first by Barry Boehm in Software Engineering Economics — and while the exact multiplier varies by system and team, the direction hasn’t changed. The later […]

Tetiana Khomenko

May 13, 26

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