Connect bounded Reinforcements Battle Plan

tests/reinforcements-recovery.test.ts

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+import assert from 'node:assert/strict';
+import test from 'node:test';
+import type { DatabaseSync } from 'node:sqlite';
+import { viewGame, type Action, type Game } from '../game/engine';
+import type { RoomsClock } from '../db/rooms';
+import { unitStore } from './fixture-nexus-room-store';
+import { harassCustody, harassWithdrawGame, takeHarassCard } from './fixture-harass-withdraw';
+
+const clock: RoomsClock = { now: () => 83001, sleep: async () => {} };
+const rows = (sqlite: DatabaseSync) => ({
+  rooms: sqlite.prepare('SELECT * FROM rooms ORDER BY code').all(),
+  seats: sqlite.prepare('SELECT * FROM seats ORDER BY player_id').all(),
+});
+
+void test('a privately sealed Reinforcements plan and its one-time physical cost survive D1-style restart and competing final writes', async t => {
+  for (const advanced of [false, true]) {
+    const store = unitStore();
+    t.after(() => store.sqlite.close());
+    const made = await store.rooms.createRoom('Reinforcements recovery', 'emperor', advanced, []);
+    const code = made.view.code;
+    const tokens = [made.token,
+      (await store.rooms.joinRoom(code, 'Atreides', 'atreides')).token!,
+      (await store.rooms.joinRoom(code, 'Harkonnen', 'harkonnen')).token!];
+    const auths = await Promise.all(tokens.map(token => store.rooms.authenticate(code, token)));
+    const ids = auths.map(auth => auth.playerId) as [string, string, string];
+    let game = harassWithdrawGame({ advanced, ids, factions: ['emperor', 'atreides', 'harkonnen'] });
+    game.code = code;
+    game.version = (await store.rooms.readRoom(code)).version;
+    takeHarassCard(game, ids[0], 'ecaz-reinforcements');
+    harassCustody(game);
+    store.sqlite.prepare('UPDATE rooms SET state=?, version=? WHERE code=?')
+      .run(JSON.stringify(game), game.version, code);
+    store.writes.length = 0;
+    const act = async (index: number, action: Action) => {
+      const rooms = store.restart();
+      const before = await rooms.readRoom(code);
+      await rooms.act(code, await rooms.authenticate(code, tokens[index]), before.version, action, clock);
+      return rooms.readRoom(code);
+    };
+    game = await act(0, { type: 'battlePlan', dial: 1, support: advanced ? 1 : 0,
+      leader: 'emperor-0', defense: 'ecaz-reinforcements' });
+    const preReveal = rows(store.sqlite);
+    for (const [index, token] of tokens.entries()) {
+      const rooms = store.restart();
+      const seat = await rooms.readSeatView(code, await rooms.authenticate(code, token));
+      assert.deepEqual(seat, viewGame(game, ids[index]));
+      assert.deepEqual(seat, viewGame(JSON.parse(JSON.stringify(game)) as Game, ids[index]));
+      if (index !== 0) {
+        assert.deepEqual(seat.battle?.plans, {});
+        assert.equal(seat.battle?.reinforcements, null);
+        assert.equal(JSON.stringify(seat).includes('ecaz-reinforcements'), false);
+      }
+    }
+    assert.deepEqual(rows(store.sqlite), preReveal);
+    game = await act(1, { type: 'battlePlan', dial: 1, support: advanced ? 1 : 0,
+      leader: 'atreides-0' });
+    game = await act(0, { type: 'traitorCall', call: false });
+    const before = rows(store.sqlite);
+    const version = game.version;
+    const rooms = store.restart();
+    const auth = await rooms.authenticate(code, tokens[1]);
+    const startWrite = store.writes.length;
+    let entered = 0;
+    let release!: () => void;
+    const both = new Promise<void>(resolve => { release = resolve; });
+    store.hooks.beforeWrite = async () => {
+      if (++entered === 2) release();
+      await both;
+    };
+    const attempts = await Promise.allSettled([0, 1].map(() =>
+      rooms.act(code, auth, version, { type: 'traitorCall', call: false }, clock)));
+    store.hooks.beforeWrite = undefined;
+    assert.equal(attempts.filter(result => result.status === 'fulfilled').length, 1);
+    assert.deepEqual(store.writes.slice(startWrite).map(write => write.changes).sort((a, b) => a - b), [0, 1]);
+    const resolved = await store.restart().readRoom(code);
+    harassCustody(resolved);
+    assert.equal(resolved.version, version + 1);
+    assert.equal(resolved.battle, null);
+    assert.equal(resolved.players[0].reserves, 12);
+    assert.equal(resolved.discard.filter(card => card.id === 'ecaz-reinforcements').length, 1);
+    assert.equal(resolved.log.filter(entry => entry.text.includes('used Reinforcements: three reserve forces')).length, 1);
+    assert.notDeepEqual(rows(store.sqlite).rooms, before.rooms);
+    for (const [index, token] of tokens.entries()) {
+      const seat = await store.restart().readSeatView(code, await store.restart().authenticate(code, token));
+      assert.deepEqual(seat, viewGame(JSON.parse(JSON.stringify(resolved)) as Game, ids[index]));
+    }
+  }
+});