Serverless
Azure Functions is Microsoft's serverless compute platform, and like all serverless environments it creates a testing challenge: your code runs inside a host process you don't own, responds to triggers from Azure services, and integrates deeply with the Azure ecosystem. Getting a reliable test suite in
Testing
Consumer-driven contract testing solves one of the trickiest problems in distributed systems: how do you know that changes to a provider API won't silently break every consumer that depends on it? Schema validation tells you the shape of a response. Contract testing tells you whether the response
Testing
Azure Cosmos DB is a globally distributed, multi-model database with unique behavior around partition keys, request units (RU/s), consistency levels, and the change feed. Testing these behaviors requires both local emulation and integration tests against the real service. This guide covers both. The Cosmos DB Emulator Microsoft provides
Testing
Azure Container Apps (ACA) is Microsoft's serverless container platform built on Kubernetes and KEDA. It handles scaling, load balancing, and traffic management for you. Testing ACA deployments requires verifying not just that your container runs, but that scaling behaves correctly, revision traffic splitting works, health probes pass, and
Testing
Generating a Pact contract locally is a useful proof of concept. But contracts only deliver their value when they're shared automatically between teams, versioned alongside code, and verified on every pull request. That's what the Pact Broker is for. This post covers running a Pact Broker,
Testing
Azure API Management (APIM) sits in front of your backend APIs and handles cross-cutting concerns: authentication, rate limiting, request/response transformation, caching, and routing. Policies are XML rules that execute on every request, and bugs in them break all your APIs simultaneously. Testing APIM policies requires running them locally
Testing
The Pact Broker is the hub of your contract testing workflow. Consumers publish pacts to it. Providers fetch pacts from it, run verification, and publish results back. The broker tracks which consumer/provider version pairs are compatible and answers the critical question: "can this version be safely deployed?"
Testing
Pa11y is a command-line accessibility testing tool built on top of HTML CodeSniffer. It's lighter than full browser automation frameworks, integrates naturally with any CI/CD pipeline, and supports running accessibility checks against URLs without requiring a test framework. This guide covers installation, configuration, CI integration, and
Testing
Accessibility bugs are cheap to fix when caught during development and expensive to fix in production. Automated accessibility testing with axe-core and Playwright catches a significant portion of WCAG violations without manual effort — and it fits neatly into any CI pipeline. This guide walks through everything from installation to
Testing
Automated accessibility testing gives you speed and consistency. Run it on every PR and you'll catch the class of violations that tools can reliably detect — missing labels, contrast failures, invalid ARIA — before they reach production. The key is understanding what each tool covers, how to integrate it into
Testing
Most teams use axe-core with default settings: run it against a page, count violations, fail the build. That works until your design system produces dozens of false positives, or your app has accessibility requirements that no default rule covers. This guide covers the axe-core internals you need to
Testing
The OWASP Top 10 is the most referenced list in web application security. Published by the Open Web Application Security Project, it represents the ten most critical security risks based on data from thousands of real-world applications. This checklist gives you concrete tests for each category — not just definitions,