A mock is your belief about the provider, and a contract test compares that belief with their published schema. Running it on a schedule rather than on every…
40ms becomes 8ms, and the fourth request returns another customer’s data. The shared-nothing assumption is load-bearing in more places than anybody had counted.
docker compose down removes containers and networks and leaves named volumes, which is the safe default and the reason a database survives a version change you did not…
A screenshot comparison fails on a one-pixel difference, and font rendering differs between a laptop and a CI runner. Running the browser in a pinned container is the…
Kafka guarantees order within a partition and nothing across partitions, which means the key choice is the ordering design. Choosing the key is choosing what is ordered relative…