The runner, the assertions and the extensions are PHPUnit’s, which means adopting it is a syntax decision rather than a testing-framework migration. Both styles running in one suite…
A parallel suite gets a database per worker automatically and shares every other backing service, which produces failures that look exactly like ordering bugs. Redis is the one…
Every fixture is a well-formed JSON success, and the response that takes an application down is an HTML error page from somebody’s load balancer. Checking the content type…