testing – Page 17 – Türker Yıldırım

OpenTelemetry when the PHP SDK is still beta

Deep diveSeptember 20, 202210 min read

The traces specification is 1.0 and the PHP implementation is not. Three tracing formats and a vendor decision nobody wants to make.

Pest is PHPUnit underneath, which is the good news

NoteSeptember 2, 20222 min read

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…

Parallel workers need a Redis database each

NoteAugust 25, 20221 min read

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…

A read-through cache that stampedes exactly once

Deep diveAugust 24, 202210 min read

A cache entry expired at 09:00 and four hundred requests recomputed it. A latency spike every hour, exactly on the hour.

Bootstrap 5.2, CSS variables, and a theme that stopped being a fork

Deep diveAugust 17, 202210 min read

5.2 in July, and custom properties throughout the components. A Sass fork that had to be rebased on every patch release.

Reading someone else’s language well enough to review it

NoteAugust 12, 20222 min read

A polyglot system needs more than one person able to read each part, and that is a lower bar than being able to write it. Setting the bar…

Recording a 502 with an HTML body, because it happens

NoteAugust 10, 20221 min read

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…

Composer audit, and the advisory that was already fixed

Deep diveAugust 8, 202210 min read

2.4 in August, and an audit command in the tool that already knows. A separate scanner reporting on a lock file it half understood.

A slow trickle is the timeout case nobody simulates

NoteAugust 3, 20222 min read

A server that accepts the connection and sends one byte per second passes every check except a total timeout, and a client with only a connect timeout waits…

A contract test belongs on a schedule, not on a push

NoteAugust 2, 20222 min read

A test that validates a third party’s responses detects their change rather than yours, so failing a pull request on it blocks the wrong person. Notifying a channel…