3 mutations tested. 3 caught, 0 uncaught. Full coverage on tested surface: set_target axis-swap, clear_bounds no-op, bind_pan_keys auto-enable removal. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
sporel-lib-core.camera-test
P.3.5 test-lib — validates lib-core.camera v0.3.0 API contracts (state setters,
bounds-clamping, pan_enabled toggle, pan_invert, engine-surface presence)
via the engine.test.* assertion surface. 16 assertions total.
- Lib-ID:
lib-core.camera-test - Version:
0.1.0 - Kind:
test-lib(headless; M.run_tests(ctx) invoked by engine test-runner) - Spec:
meta/docs/superpowers/specs/2026-05-13-p3-5-camera-free-pan-design.md
Run
Sporel.exe --libs-dir=<libs-path> --test-libs=lib-core.camera-test
Output is TAP version 13 on stdout; exit-code = failure-count (0 = all pass).
Coverage Statements (2026-05-16 Fault-Injection Audit)
Verified via deliberate-mutation in fixture-mirror; mutations reverted after observation.
Caught Mutations
| # | Mutation | Caught by |
|---|---|---|
| M1 | set_target: x/y assignments swapped (target_x = y; target_y = x) |
Assertions 1 ("set_target -> target", t.x==100 and t.y==200) and 4 ("set_target clamped to bounds") both fail |
| M2 | clear_bounds made no-op (do return end as first statement) |
Assertion 5 ("clear_bounds -> unclamped") fails — target remains clamped after clear |
| M3 | bind_pan_keys auto-enable removed (pan_enabled_v.keys = true commented out) |
Assertion 10 ("bind_pan_keys auto-enables") fails — pan_enabled("keys") returns false |
Uncaught Mutations (Gaps)
None — all 3 mutations caught.
Tested Production-Lib Surface
lib-core.camera v0.3.0 — Tests cover behavior of: camera.set_target/target (value + bounds-clamping), camera.set_zoom/zoom, camera.set_pan_speed/pan_speed, camera.set_bounds, camera.clear_bounds, camera.bind_pan_keys (auto-enable side-effect), camera.set_pan_enabled/pan_enabled (toggle false/true), camera.set_pan_invert/pan_invert. Engine surface: engine.input.get_mouse_delta, engine.window.size function presence.