Testing
Choosing a cross-platform mobile framework is partly a testing decision. The tools, ecosystems, and philosophies around testing differ significantly between Kotlin Multiplatform, React Native, and Flutter. This comparison helps you understand the tradeoffs before you commit. The Core Testing Philosophy Difference KMP shares business logic but keeps native UI. Testing
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'
Testing
One of WebdriverIO's most powerful capabilities is its integration with Appium for mobile testing. Using the same framework for browser automation and mobile testing means your team shares knowledge, tooling, and even some code across platforms. This guide covers setting up WebdriverIO with Appium to test iOS and
Testing
Running Detox tests locally is one thing. Getting them running reliably in CI is another. Mobile E2E tests have historically been the most painful part of CI/CD pipelines: emulators crash, builds are slow, and tests that pass locally fail for reasons that are hard to diagnose. This guide covers
Testing
Unit tests are the foundation of a React Native test strategy. They run fast, give immediate feedback, and catch logic errors long before they reach a device or simulator. Yet many React Native teams skip them or write tests that test nothing meaningful. This guide covers the practical patterns you
Testing
Native modules are the bridge between your JavaScript code and platform APIs — camera, geolocation, biometrics, push notifications, Bluetooth. They're essential for real apps, but they're also the reason React Native unit tests break: native modules don't exist in a Jest environment running on Node.
Testing
When it comes to end-to-end testing for React Native apps, two frameworks dominate the conversation: Detox and Appium. Both can drive real devices and simulators. Both support iOS and Android. But they take fundamentally different approaches, and that difference matters enormously for React Native projects specifically. This article breaks down
Testing
React Native Testing Library (RNTL) is the unit and integration testing layer that sits between your Jest unit tests and your Detox/Maestro E2E tests. It renders React Native components in a test environment, provides a DOM-like query API, and gives you control over async behavior — all without a device
Testing
End-to-end testing for mobile apps has historically been painful. Emulators crash, selectors break, and tests that pass locally fail in CI for mysterious reasons. Detox was built specifically to address these problems for React Native developers. Unlike generic automation tools, Detox is tightly integrated with the React Native runtime, giving
Testing
Android testing is layered. Your app has units of business logic, UI components that respond to state, and end-to-end flows that span multiple screens. Each layer needs a different kind of test. This guide covers the full Android testing stack: unit tests, integration tests, and UI tests — when to use
Testing
Appium and Espresso are the two most popular frameworks for Android UI testing. They can both automate your app and verify user flows — but they do it in fundamentally different ways, and choosing the wrong one costs real time. Here's the breakdown. The Core Difference Espresso runs inside
Testing
Apple's built-in testing framework is XCTest. It handles both unit tests and UI tests — and since Xcode 15, the tooling around it has never been better. If you're developing native iOS apps in Swift, XCTest is the place to start. This guide covers unit testing with