Testing
.NET MAUI (Multi-platform App UI) lets you build native iOS, Android, macOS, and Windows apps from a single C# codebase. Testing MAUI apps is more complex than testing web apps because you're dealing with native platform layers, device-specific behaviors, and UI frameworks that require running on
CI/CD
Hadolint is a Dockerfile linter that catches common mistakes, security antipatterns, and best-practice violations before your images are built. A misconfigured Dockerfile can produce bloated images, introduce vulnerabilities, or fail silently in production. Hadolint in CI prevents these issues from reaching your registries. Why Dockerfile Linting Matters Dockerfiles are
Testing
Blazor comes in two hosting models that share the same component model but behave very differently at runtime. Blazor Server runs C# on the server and pushes DOM updates over a SignalR connection. Blazor WebAssembly runs .NET in the browser via WebAssembly. These differences fundamentally affect how you test each
CI/CD
Shell scripts are everywhere in software engineering — build scripts, deployment automation, CI pipelines, startup scripts, Docker entrypoints. They're also notoriously buggy. Word splitting, unquoted variables, unchecked error codes, and portability issues cause production failures that are difficult to reproduce and debug. ShellCheck catches these issues automatically before they
Testing
Blazor brings C# to the browser, but testing it requires a different mindset depending on what layer you're testing. Component logic and rendering belong to bUnit. End-to-end user flows belong to Playwright. And pure C# business logic can stay in xUnit without any UI framework at
CI/CD
Ruff is a Python linter and formatter written in Rust that runs 10-100× faster than the tools it replaces. It implements rules from Flake8, isort, pylint, pyupgrade, and more — consolidating what used to be 5+ tools into one. For CI pipelines, Ruff's speed makes code quality gating
CI/CD
Mypy is Python's most widely used static type checker. It catches type errors before runtime — wrong argument types, missing attributes, incorrect return types — the kind of bugs that slipped through Python's dynamic typing for decades. Integrating Mypy into CI transforms it from a developer convenience into
Testing
bUnit excels at component-level testing in isolation. But when you need to verify that your Blazor application works correctly in a real browser — handling navigation, authentication, SignalR connections, and JavaScript interop — Playwright is the right tool. This guide covers Playwright end-to-end testing for both Blazor Server and
Testing
Unit tests verify your ViewModels and services. But you can't verify that buttons are tappable, navigation transitions work correctly, and the app doesn't crash on real gestures without running on a device. .NET MAUI UI testing with Appium (or the older Xamarin.UITest for Xamarin-to-
Testing
bUnit is the most capable tool available for Blazor component testing. While the basics of rendering and clicking buttons are well-documented, production Blazor applications involve cascading parameters, render fragments, complex state machines, and JavaScript interop. This tutorial covers all of it. Project Setup for bUnit Create a dedicated test
Java
Quarkus has become one of the most compelling Java frameworks for building cloud-native microservices. Its supersonic startup time and low memory footprint make it ideal for containers and serverless deployments. But fast startup means nothing if your services aren't properly tested. This guide covers everything you need
Java
Testing asynchronous code is notoriously tricky. When your application is built on Vert.x — a reactive toolkit where everything happens on an event loop — standard synchronous JUnit assertions don't work. You need to tell JUnit to wait for asynchronous operations to complete before asserting results. The Vert.x