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feat(course): audit fixes and twelve extensions (Modules 7b, 12, 13)

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Audit pass:
- Frame rule counts frames since the last move, so every step lasts
  exactly movesEvery(score) frames, also right after a speed-up
- clampTime + MAX_GAP_MS: a hidden tab no longer replays the whole gap
- Pong Restart keeps held keys
- Fact corrections (mulberry32 output coverage, Haskell IO, uniform)
- New fixture cases from a mutation analysis

Extensions (all three tracks, shared fixtures, course text):
- Turn queue (Exercise 10.6), persisted high score (10.7),
  replay viewer (10.8), play() end-to-end helper (9.5)
- Optional State (4.7) and optional Module 7b, stack-safe IO
- Module 12, property-based testing with generators, shrinking,
  invariants and a model-based oracle
- Module 13, Conway's Life with a Click event
- JS type checking via jsconfig, JSDoc and types.d.ts
- Maintainer tools: scripts/mutate.mjs, scripts/typecheck-js.sh,
  Playwright end-to-end suite (e2e/, scripts/e2e.sh)

Docs: docs/contract.md is the canonical contract; specs and build log
under docs/superpowers.

Verified: JS 728, Scala 689, F# 691 unit tests; stubs and progression
M01-M13 and M07b; 176 end-to-end tests on Chromium and WebKit.

Co-Authored-By: Claude Fable 5.2 <noreply@anthropic.com>
This commit is contained in:
Lucas WintherandClaude Fable 5.2 committed 2026-11-11 12:05:29 +01:00
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commit edd57f0148
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fixtures/m10-session-update.json
+756
View File
@@ -0,0 +1,756 @@
{
"function": "sessionUpdate",
"cases": [
{
"name": "a-step-without-eating-keeps-the-best",
"args": [
{
"game": {
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"height": 3,
"snake": [
{
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"y": 1
},
{
"x": 0,
"y": 1
}
],
"dir": "Right",
"nextDir": "Right",
"apple": {
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"y": 0
},
"seed": 5,
"score": 2,
"status": "Playing",
"frame": 0,
"queued": null
},
"best": 5,
"improved": false
},
{
"tag": "Tick"
}
],
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{
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},
{
"x": 1,
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}
],
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},
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"status": "Playing",
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"queued": null
},
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}
},
{
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{
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{
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{
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],
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},
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}
},
{
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{
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{
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{
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{
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],
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{
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],
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{
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],
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],
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"snake": [
{
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{
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},
{
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}
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}
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{
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{
"game": {
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"height": 3,
"snake": [
{
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},
{
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}
],
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},
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},
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},
{
"tag": "Turn",
"dir": "Up"
}
],
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{
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},
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}
},
{
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{
"game": {
"width": 4,
"height": 3,
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{
"x": 1,
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},
{
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}
],
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},
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"status": "Playing",
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"queued": null
},
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},
{
"tag": "Frame"
}
],
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{
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},
{
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},
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}
},
{
"name": "a-frame-that-only-counts-keeps-the-best-and-clears-improved",
"args": [
{
"game": {
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"height": 3,
"snake": [
{
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},
{
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}
],
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},
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"status": "Playing",
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"queued": null
},
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},
{
"tag": "Frame"
}
],
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{
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{
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],
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},
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},
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}
},
{
"name": "game-over-keeps-the-best",
"args": [
{
"game": {
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{
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},
{
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}
],
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},
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},
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},
{
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}
],
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{
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{
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}
],
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},
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},
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}
},
{
"name": "restart-keeps-the-best",
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{
"game": {
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"height": 3,
"snake": [
{
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},
{
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}
],
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},
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},
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},
{
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}
],
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"snake": [
{
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},
{
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{
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}
],
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},
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}
},
{
"name": "pausing-keeps-the-best",
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{
"game": {
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"snake": [
{
"x": 1,
"y": 1
},
{
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}
],
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},
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},
{
"tag": "TogglePause"
}
],
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{
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},
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}
}
]
}