# Test Canisters
Small canisters used by `ic-testkit` to test its own PocketIC harness behavior.
The layout mirrors the `canisters/test/...` convention used by related repos.
These canisters are fixtures, not application examples.
## Current Fixtures
- `test/perf_probe`: emits compact `ICTK|...` benchmark markers via
`ic_testkit::performance::Performance::measure`.
Build all current test fixtures with:
```sh
make build-test-canisters
```
Run the PocketIC fixture test with:
```sh
make test-canisters
```