Testing Insights
& Tutorials

Five ways to speed up a browser-automation CLI, measured against each other. One works and costs nothing. One is slower than doing nothing at all. One isn't an optimization — it's quietly selling you worse behaviour. Here's how you tell them apart.

A trace, not a guess: following one CLI call from bash to Chrome and back through six hops — a per-call process spawn, a shared daemon over a Unix socket, an isolated Chrome profile per session, and WebDriver BiDi underneath. Measured round-trip costs included.

The I SLICED UP FUN mnemonic made interactive. Twelve test categories — Inputs, Store, Location, Interactions, Communication, Ergonomics, Data, Usability, Platform, Function, User Scenarios, and Network — with every checkpoint trackable and persistent.

A practical guide to stable, reliable selectors across web and mobile. Covers By.ID, CSS Selectors, XPath, Accessibility IDs, iOS Class Chain, iOS Predicate, and Android UiAutomator — with Python code examples throughout.