api-tests-black-box

IN premise — entries/2026/04/24/tests-test_api.md

Test methodology claim, not a behavioral invariant about the codebase. Developers learn this from reading the tests, not from a belief registry.

Summary

This is a methodological observation about how the API tests are structured — they treat the system as a black box, testing through its external interface rather than reaching into internals. It matters because it tells developers what kind of confidence the test suite provides: it validates behavior as a consumer would see it, but won't catch internal implementation bugs that don't surface through the API.