Testing
Google Mock (GMock) is the mocking library bundled with Google Test. It lets you define mock objects from interfaces, set expectations on method calls, control return values, and verify interactions — all within your existing gtest suite. This guide covers everything from basic MOCK_METHOD to advanced argument matching. Why Mocking?
Test Automation
Test Workbox service workers at three levels: unit test routing strategies with workbox-strategies in a mocked environment, integration test fetch behavior using sw-test-env which runs your service worker in Node.js, and end-to-end test cache behavior with Playwright. The makeServiceWorkerEnv() function from jest-service-worker (now service-worker-mock) gives you a DOM-less environment
Testing
Testing Serverless Framework applications follows the same layered approach as any Lambda testing: unit tests for business logic, integration tests using LocalStack for AWS service simulation, and end-to-end tests against a dedicated staging deployment. The Serverless Framework adds configuration complexity (serverless.yml) that can itself be tested using serverless-offline for
Testing
HuggingFace transformers introduce unique testing challenges: probabilistic outputs, large model sizes, and prompt sensitivity. This guide covers unit tests for tokenizers and model outputs, regression tests for prompt behavior, performance benchmarking, and CI patterns for LLM applications. Why Transformer Testing Is Different Testing a BERT classifier is different from testing
Testing
Unity is a lightweight C testing framework built for embedded systems. CMock auto-generates mock implementations from C headers, enabling you to test firmware logic without real hardware. Together they form the standard testing stack for embedded C — run on host before flashing to device. The Embedded Testing Problem Testing embedded
Testing
A QA Center of Excellence is not a team — it's a function that elevates quality across the entire engineering organization. This guide walks QA leaders and engineering managers through the models, founding decisions, governance structures, and 90-day launch plan required to build a CoE that actually improves quality
Test Automation
Test PWA service workers by intercepting network requests with Playwright's page.route() to simulate offline mode. Verify caching strategies by blocking fetch requests and asserting cached responses are served. Test the install prompt by listening for the beforeinstallprompt event. Use Lighthouse CI to validate PWA criteria automatically in
Testing
Cloudflare Workers run in the V8 isolate runtime, not Node.js. Testing them requires either Miniflare (a local Workers simulator) or Wrangler's built-in test integration with Vitest. Use Vitest + Wrangler for the most accurate tests—they run in the actual Workers runtime, not a simulation. Test KV, D1,
Testing
TensorFlow Model Analysis (TFMA) provides slice-based model evaluation — testing not just overall accuracy but performance across demographic and feature subgroups. This guide covers TFMA setup, fairness testing, model blessing, and integration into TFX pipelines. What Is TensorFlow Model Analysis? TFMA is part of the TensorFlow Extended (TFX) ecosystem, designed to
Testing
CTest is CMake's built-in test runner. It discovers and executes tests defined in your CMakeLists.txt, reports results uniformly regardless of the underlying test framework (gtest, Catch2, Boost.Test, or a plain executable), and integrates with CI via standard exit codes and XML reports. What CTest Is (and
Test Automation
Manifest V3 replaces background pages with service workers and removes chrome.webRequest blocking in favor of declarativeNetRequest. Test service workers by communicating via chrome.runtime.sendMessage from pages or content scripts. Service workers are ephemeral — they can be suspended between events, so your tests must account for startup latency. Use
Testing
Testing Azure Functions has three layers: unit tests for business logic (no Azure SDK needed), local integration tests with Azure Functions Core Tools (func) and Azurite for storage emulation, and CI/CD pipeline tests. The key is to extract your business logic from the function trigger, test it in pure