Automation

What You’ll Learn How to test WebAuthn (passkey) authentication in CI environments Automating OTP email retrieval with Mailpit API Preventing email race conditions in parallel E2E tests Locale-specific testing for multilingual UIs Introduction In Part 1, I introduced the overall architecture and automation strategy for “Saru,” a multi-tenant SaaS platform. This article dives deeper into the E2E testing implementation that forms the core of that automation. The most challenging aspect is testing authentication flows. Saru uses two authentication methods: ...

What You’ll Learn How to approach building systems that exceed “what one person can maintain” Overview of complex multi-tenant system design Automation strategy to achieve zero manual testing Introduction “Don’t build what you can’t maintain alone.” I believe this is a fundamental rule of solo development. But I wanted to challenge that limit. After using AI coding agents (Claude Code, GitHub Copilot, etc.) in production for several months, I started thinking, “Maybe I can build something complex on my own.” But there’s a condition: thorough automation. ...