Engineering
Testing Strategies for Modern Web Apps: What Actually Works
A practical guide to a testing strategy that catches real bugs: unit, integration and end-to-end with Vitest, Testing Library and Playwright.
·6 min read
Tags
Testing
17 articles · Page 1 of 2
Engineering
Dependency Injection Patterns in TypeScript Applications
Dependency injection in TypeScript with constructor injection, factory functions, DI containers and module composition — testable, without framework lock-in.
·4 min read
Tutorials
End-to-End Testing Strategies with Playwright and TypeScript
Build reliable end-to-end suites with Playwright: page object models, test isolation, network interception, visual regression and CI, without flakiness.
·3 min read
Engineering
Testing Distributed Systems: Chaos, Contracts, Confidence
Practical testing for distributed architectures: contract testing between services, chaos engineering, integration design, and confidence without full E2E.
·4 min read
Artificial Intelligence
Evaluating LLM Output: Metrics and Testing Frameworks
A practical guide to evaluation pipelines for LLM features: semantic similarity metrics, behavioral testing, regression detection and quality gates.
·4 min read
Engineering
Chaos Engineering: Breaking Things on Purpose
Practice chaos engineering by injecting controlled failures into production to find weaknesses first: network partitions, resource exhaustion, dependencies.
·5 min read
Engineering
Implementing Feature Flags at Scale
Build a feature flag system with gradual rollouts, user targeting, A/B testing and kill switches — plus lifecycle patterns that prevent flag debt.
·5 min read
Engineering
Load Testing: Finding Breaking Points Before Users Do
Design and run load tests with k6: ramping strategies, realistic user simulation, threshold-based pass/fail criteria and reading results to find bottlenecks.
·5 min read
Engineering
Property-Based Testing: Finding Bugs Your Unit Tests Miss
How property-based testing generates hundreds of random inputs to verify invariants and catch edge cases example tests miss, using fast-check in TypeScript.
·5 min read
Artificial Intelligence
Building Evaluation Frameworks for LLM Applications
Design evaluation pipelines for LLM applications: automated metrics, human evaluation protocols, regression tests, prompt versioning and monitoring.
·5 min read
Engineering
Refactoring Legacy Code Without Breaking Everything
Systematic refactoring strategies for legacy codebases: characterization tests, the strangler pattern and incremental extraction, without regressions.
·4 min read
Engineering
Feature Toggle Patterns for Safe Releases
How to implement feature toggles that enable trunk-based development, gradual rollouts and instant rollbacks — types, testing and cleanup that avoids debt.
·5 min read