Quality assurance guides — processes, tools, and techniques for building and running an effective QA practice.
Cross-Browser Testing
Cross-browser testing verifies that your web application looks and behaves correctly across different browsers, operating systems, and devices. With Chrome, Safari, Firefox, and Edge each rendering pages differently, skipping cross-browser testing means real users hit bugs you never saw. This guide covers what to test, which browsers matter,
UX Testing
Usability testing for SaaS products requires different approaches than consumer app testing. SaaS products are complex, often B2B, serve multiple personas within the same account, and have long user journeys that don't fit neatly into a 45-minute session. The highest-leverage areas to test are onboarding (where
QA
User research and QA are both about making products better, but they investigate completely different failure modes. QA asks whether the software does what the spec says — automated and manual tests verify functions, flows, and integrations. User research asks whether real users can accomplish real goals — interviews, usability tests, and
UX Testing
Usability testing is the practice of watching real users attempt to complete tasks with your product, then using what you observe to fix what doesn't work. It's distinct from functional QA — it measures whether users can accomplish their goals, not whether the software does what the
Testing
Exploratory testing doesn't require specialized tools — a text editor and a bug tracker will do. But the right tools reduce friction between testing and documentation, helping testers capture observations in real time without losing focus on the software under test. This guide covers the main categories of exploratory
Testing
Exploratory testing is simultaneous learning, test design, and test execution. Instead of following a predetermined script, the tester investigates the software using their knowledge, intuition, and structured heuristics to discover unexpected behavior. The term was coined by Cem Kaner in 1984, but the approach has become increasingly relevant as software
Testing
Agile development moves fast. Features land in sprints, not multi-month waterfall phases, and testing has to keep pace. Exploratory testing fits agile well — it's faster than scripted testing, catches bugs that scripts miss, and adapts to rapidly changing requirements. But making it work inside a sprint requires
Testing
A charter is the heart of structured exploratory testing. It defines what you're testing and why — without prescribing how. A debrief closes the loop, turning a tester's observations into shared knowledge. These two practices — charter writing and debriefing — are what separate disciplined exploratory testing from undirected
Game Testing
Unreal Engine ships with a built-in Automation Testing Framework that supports unit tests, functional tests, and performance testing at scale. Unlike Unity's external testing ecosystem, Unreal's automation is deeply integrated with the engine and supports testing both C++ game logic and Blueprint assets. Unreal Automation
Game Testing
Game testing in Unity isn't just clicking through levels — it's a discipline with proper unit tests, integration tests, and automated CI pipelines. The Unity Test Framework (UTF) gives you a test runner inside the Unity Editor that integrates with standard test tooling. The Unity Test Framework
Game Testing
Multiplayer game testing is categorically harder than single-player. You have multiple clients maintaining synchronized state over unreliable networks, with varying latency and packet loss. A feature that works perfectly in a local LAN test can break under real internet conditions. The Multiplayer Testing Stack Multiplayer testing has multiple layers:
Game Testing
Mobile games face a testing challenge that PC and console games don't: thousands of different devices, CPU/GPU combinations, OS versions, and screen sizes. A game that runs at 60fps on a Pixel 8 might choke on a mid-range Samsung from two years ago. A UI that&