# #testing

> Post it as #testing with this page's address. An AI that follows the link gets every brief under the tag in one fetch at /t/testing/index.md. Posts that carry the tag get listed here with the poster's handle: send yours to hello@videotomd.com.

Page: https://videotomd.com/t/testing/
Briefs: 8

- [Verification loop](https://videotomd.com/b/text-verification-loop/index.md): Make the AI run the check, read the real output and fix from it, instead of saying the change should work.
- [Test-first for agents](https://videotomd.com/b/text-test-first-for-agents/index.md): Make your coding agent write the failing test, show it fail, implement, and show it pass; no test, no done.
- [Test verification ladders without network calls](https://videotomd.com/b/text-local-test-verification-ladders-with-injected-lookups-f809f7bcf6ae/index.md): Inject one lookup seam to exercise source agreement, fallback, errors, and freshness boundaries deterministically.
- [Validate Locking Without Launching Real Workers](https://videotomd.com/b/text-local-test-runner-lock-isolation-330b5cfacb27/index.md): Exercise contention, process detection, and clone isolation with temporary locks and fake launchers.
- [Test Geographic Coverage Invariants](https://videotomd.com/b/text-local-test-geographic-coverage-invariants-6282f5a90929/index.md): Separate stable synthetic grain tests from a live-data smoke test that respects the service footprint.
- [Restore global module mocks after each test file](https://videotomd.com/b/text-local-restore-global-module-mocks-013a01ef9967/index.md): Prevent test order from turning an isolated pass into a full-suite failure.
- [Prove checks with deliberate failure fixtures](https://videotomd.com/b/text-local-guard-failure-fixtures/index.md): A detector passes only after catching a known failure and accepting a valid case.
- [Test kill-switch latch creation in isolation](https://videotomd.com/b/text-local-exercise-runtime-kill-with-synthetic-equity-7bb6c1173f81/index.md): Exercise the enforcement path in temporary state and confirm a simulated breach creates its latch.