How They Test is a curated knowledge repository that collects publicly available resources documenting how software companies around the world approach testing and build quality culture.
The project addresses the problem that testing best practices, tools, and techniques shared by companies across conferences, blogs, and meetups are scattered and difficult to discover in one place. It solves this by aggregating resources from individual companies—including blog posts, talks, and documented practices—organized by company name and topic area. The scope extends beyond traditional functional testing to encompass test automation, CI/CD practices, release management, quality processes, testing in production, monitoring, chaos engineering, and site reliability engineering.
Developers and quality engineers researching how established companies approach testing will find this useful as a reference for industry practices and cultural approaches to quality. It suits teams looking to benchmark their testing strategies or seeking concrete examples of how others have solved testing challenges at scale. The project has transitioned from a README-based format to a website interface that provides search, filtering, and contribution mechanisms for keeping resources current.
The project maintains an active website separate from the repository, with a contribution form for submitting new resources and organized filtering by industry and topics. The README acknowledges it is no longer actively maintained, directing users to the official website for up-to-date company listings and resources.