AI Implementation feature(820): Project Scaffold and Platform Foundations (#1)

2026-07-21 14:23:53 +00:00
parent e55c9cda56
commit 03bcb6b156
131 changed files with 23657 additions and 0 deletions
@@ -0,0 +1,81 @@
+import { UsersService } from '../../backend/src/modules/users/users.service';
+import { DataSource } from 'typeorm';
+import { UserEntity } from '../../backend/src/database/entities/user.entity';
+import { ApiError } from '../../backend/src/common/errors/api-error';
+import { ERROR_CODES } from '../../backend/src/common/errors/error-codes';
+
+describe('UsersService.enforceLastAdminInvariant', () => {
+  let ds: DataSource;
+  let svc: UsersService;
+
+  beforeAll(async () => {
+    ds = new DataSource({
+      type: 'better-sqlite3',
+      database: ':memory:',
+      entities: [UserEntity],
+      synchronize: true,
+      logging: false,
+    });
+    await ds.initialize();
+    svc = new UsersService(ds.getRepository(UserEntity));
+  });
+
+  afterAll(async () => {
+    await ds.destroy();
+  });
+
+  beforeEach(async () => {
+    await ds.getRepository(UserEntity).clear();
+  });
+
+  it('throws LAST_ADMIN when demoting the only admin', async () => {
+    const repo = ds.getRepository(UserEntity);
+    const admin = repo.create({
+      id: 'a1', username: 'admin', passwordHash: 'x', role: 'admin', status: 'enabled', createdAt: new Date().toISOString(),
+    });
+    await repo.save(admin);
+
+    await expect(
+      ds.transaction(async (manager) => svc.enforceLastAdminInvariant(manager, 'a1', 'player')),
+    ).rejects.toMatchObject({
+      response: { code: ERROR_CODES.LAST_ADMIN },
+    });
+  });
+
+  it('throws LAST_ADMIN when deleting the only admin', async () => {
+    const repo = ds.getRepository(UserEntity);
+    const admin = repo.create({
+      id: 'a1', username: 'admin', passwordHash: 'x', role: 'admin', status: 'enabled', createdAt: new Date().toISOString(),
+    });
+    await repo.save(admin);
+
+    await expect(
+      ds.transaction(async (manager) => svc.enforceLastAdminInvariant(manager, 'a1')),
+    ).rejects.toMatchObject({
+      response: { code: ERROR_CODES.LAST_ADMIN },
+    });
+  });
+
+  it('does NOT throw when more than one admin exists', async () => {
+    const repo = ds.getRepository(UserEntity);
+    await repo.save([
+      repo.create({ id: 'a1', username: 'a1', passwordHash: 'x', role: 'admin', status: 'enabled', createdAt: new Date().toISOString() }),
+      repo.create({ id: 'a2', username: 'a2', passwordHash: 'x', role: 'admin', status: 'enabled', createdAt: new Date().toISOString() }),
+    ]);
+
+    await expect(
+      ds.transaction(async (manager) => svc.enforceLastAdminInvariant(manager, 'a1', 'player')),
+    ).resolves.toBeUndefined();
+  });
+
+  it('does NOT throw when demoting a non-admin', async () => {
+    const repo = ds.getRepository(UserEntity);
+    await repo.save([
+      repo.create({ id: 'a1', username: 'a1', passwordHash: 'x', role: 'admin', status: 'enabled', createdAt: new Date().toISOString() }),
+      repo.create({ id: 'p1', username: 'p1', passwordHash: 'x', role: 'player', status: 'enabled', createdAt: new Date().toISOString() }),
+    ]);
+    await expect(
+      ds.transaction(async (manager) => svc.enforceLastAdminInvariant(manager, 'p1', 'admin')),
+    ).resolves.toBeUndefined();
+  });
+});