v0.62.0: fixed 24x world clock — frozen when fully grounded (#135)

e2e/state.spec.ts

@@ -8,9 +8,6 @@ import { test, expect } from '@playwright/test';
 const repoRoot = path.join(__dirname, '..');
 const composeArgs = process.env.E2E_COMPOSE_ARGS ?? '';
 
-// Must match lib/sim/engine.ts — kept in sync manually (same pattern as e2e/sim.spec.ts).
-const MAX_TICK_ELAPSED_MS = 2_000;
-
 interface StateBody {
   account: { cash: number; reputation: number };
   simState: { clockMs: number }; // ISS-117: the snapshot carries only the game clock
@@ -45,9 +42,8 @@ test('GET /api/state returns a seeded snapshot', async ({ page }) => {
 test('state survives a container restart (sim clock + account persisted)', async ({ page }) => {
   test.setTimeout(180_000);
 
-  // Self-heal to a fully grounded fleet first — while idle the clock advances at real time
-  // (ISS-128), so the post-restart snapshot is bounded by one clamped tick of downtime plus live
-  // ticks, not byte-for-byte identical.
+  // Self-heal to a fully grounded fleet first — a grounded fleet freezes the world clock (#135),
+  // so no tick advances it across the restart and the post-restart clock is exactly unchanged.
   await expect
     .poll(async () => {
       const res = await page.request.get('/api/state');
@@ -60,7 +56,6 @@ test('state survives a container restart (sim clock + account persisted)', async
   const resBefore = await page.request.get('/api/state');
   expect(resBefore.status()).toBe(200);
   const before = (await resBefore.json()) as StateBody;
-  const tBefore = Date.now();
 
   execSync(`docker compose ${composeArgs} restart flight`, { cwd: repoRoot, stdio: 'pipe' });
 
@@ -80,17 +75,12 @@ test('state survives a container restart (sim clock + account persisted)', async
 
   expect(after).toBeDefined();
   const a = after!;
-  const tAfter = Date.now();
 
   // The DB file on the volume must be loaded, not re-seeded (PLAN.md: "sim clock persisted across
-  // sessions"): account and entity ids are byte-identical. With the fleet grounded above, ISS-128
-  // advances the clock at real time while idle — bounded tolerance instead of exact equality: no
-  // ticks run while the container is down, so the first post-restart tick counts the downtime
-  // clamped to MAX_TICK_ELAPSED_MS × IDLE rate (= 1), and every other counted gap lies inside the
-  // live wall span [tBefore, tAfter] at that same rate. A re-seed would reset clockMs backwards.
-  const delta = a.simState.clockMs - before.simState.clockMs;
-  expect(delta).toBeGreaterThanOrEqual(0); // never goes backwards — not re-seeded
-  expect(delta).toBeLessThanOrEqual(MAX_TICK_ELAPSED_MS + (tAfter - tBefore));
+  // sessions"): account and entity ids are byte-identical. With the fleet grounded above, the world
+  // clock is FROZEN (#135) — no tick advances it while the container is down or after restart, so
+  // the post-restart clock is EXACTLY unchanged; a re-seed would reset clockMs backwards instead.
+  expect(a.simState.clockMs - before.simState.clockMs).toBe(0);
   expect(a.account.cash).toBe(before.account.cash);
   expect(a.account.reputation).toBe(before.account.reputation);
   expect(a.planes.map((p) => p.id).sort()).toEqual(before.planes.map((p) => p.id).sort());