Connect native Discovery setup and nested force paths

tests/discovery-module-profile.test.ts

@@ -0,0 +1,53 @@
+import test from 'node:test';
+import assert from 'node:assert/strict';
+import { createGame, initializeDiscoveryGameForAudit, joinGame, newPlayer, RuleError, type Game } from '../game/engine';
+import type { FactionId } from '../game/catalog';
+import { createTechTokens } from '../game/tech-tokens';
+import { createStrongholdCards } from '../game/stronghold-cards';
+
+function lobby(roster: FactionId[], expansions: string[], advanced = true): Game {
+  const game = createGame('DISCINIT', newPlayer(roster[0], roster[0], roster[0]), advanced, expansions);
+  for (const faction of roster.slice(1)) joinGame(game, newPlayer(faction, faction, faction));
+  for (const player of game.players) player.ready = true;
+  game.discoveryEnabled = true;
+  return game;
+}
+
+void test('Discovery requires the selected native family and does not admit paired or mixed E3', () => {
+  const unsupported = [
+    lobby(['ixians', 'guild'], []),
+    lobby(['richese', 'guild'], ['ix']),
+    lobby(['ecaz', 'moritani', 'guild'], ['ecaz']),
+    lobby(['ecaz', 'ixians', 'guild'], ['ecaz', 'ix']),
+    lobby(['moritani', 'harkonnen', 'guild'], ['ecaz']),
+  ];
+  for (const game of unsupported) assert.throws(() => initializeDiscoveryGameForAudit(game), RuleError);
+  // The Advanced Moritani/Harkonnen restriction is not a new Basic restriction.
+  const basic = initializeDiscoveryGameForAudit(lobby(['moritani', 'harkonnen', 'guild'], ['ecaz'], false));
+  assert.equal(basic.moritaniAssassinatePreview, undefined);
+  assert.equal(basic.discoveries?.tokens.length, 8);
+});
+
+void test('Discovery Tech requires three seats and untouched physical tokens', () => {
+  const two = lobby(['ixians', 'tleilaxu'], ['ix']); two.techTokens = createTechTokens();
+  assert.throws(() => initializeDiscoveryGameForAudit(two), RuleError);
+  const used = lobby(['choam', 'richese', 'guild'], ['choam']); used.techTokens = createTechTokens();
+  used.techTokens.production.owner = 'choam';
+  assert.throws(() => initializeDiscoveryGameForAudit(used), RuleError);
+  const fresh = lobby(['ixians', 'tleilaxu', 'guild'], ['ix']); fresh.techTokens = createTechTokens();
+  const initialized = initializeDiscoveryGameForAudit(fresh);
+  assert.equal(initialized.techTokens?.heighliners.owner, 'ixians');
+  assert.equal(initialized.techTokens?.axlotl.owner, 'tleilaxu');
+  assert.equal(initialized.discoveryEnabled, true);
+});
+
+void test('Discovery cannot redeal started components or silently remove another module', () => {
+  const initial = lobby(['ixians', 'tleilaxu', 'guild'], ['ix']);
+  const started = initializeDiscoveryGameForAudit(initial);
+  assert.throws(() => initializeDiscoveryGameForAudit(started), RuleError);
+  const overlays: Game[] = [structuredClone(initial), structuredClone(initial), structuredClone(initial)];
+  overlays[0].homeworlds = { custody: null };
+  overlays[1].nexusCards = { cards: null, phase: null };
+  overlays[2].strongholdCards = createStrongholdCards();
+  for (const game of overlays) assert.throws(() => initializeDiscoveryGameForAudit(game), RuleError);
+});