RAILING AGAINST TIME: TOOLS AND TECHNIQUES THAT GOT US 5X FASTER TESTS

Summary from the TLDR Web Dev newsletter

Developers were able to get a test suite down from 53 minutes to 11 minutes by using a combination of profiling tools, RSpec techniques, and code refactoring. Their optimization strategy focused on identifying high-value targets, prioritizing easy wins, and consistently measuring results. The process involved three main phases: general optimizations, factory optimization, and optimizing individual test files using techniques like `let_it_be` (which means using shared test data instead of creating new test data for each test).