feat: add AccountsModule with list and QR endpoints

Implements GET /accounts (list all accounts) and GET /accounts/:id/qr (returns QR code as base64 data URL) using the qrcode package. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-05-29 11:15:42 +05:30
parent 02dad1347c
commit 1dba77959d
8 changed files with 268 additions and 0 deletions
@@ -0,0 +1,66 @@
+import { Test, TestingModule } from '@nestjs/testing';
+import { AccountsService } from './accounts.service';
+import { PrismaService } from '../../prisma/prisma.service';
+import * as QRCode from 'qrcode';
+
+jest.mock('qrcode', () => ({
+  toDataURL: jest.fn().mockResolvedValue('data:image/png;base64,fakedata'),
+}));
+
+const mockAccounts = [
+  { id: 'acc_1', platform: 'whatsapp', jid: '111@s.whatsapp.net', displayName: 'Test Account', status: 'ACTIVE' },
+];
+
+const mockPrisma = {
+  account: {
+    findMany: jest.fn().mockResolvedValue(mockAccounts),
+    findUnique: jest.fn(),
+  },
+};
+
+describe('AccountsService', () => {
+  let service: AccountsService;
+
+  beforeEach(async () => {
+    jest.clearAllMocks();
+    const module: TestingModule = await Test.createTestingModule({
+      providers: [
+        AccountsService,
+        { provide: PrismaService, useValue: mockPrisma },
+      ],
+    }).compile();
+    service = module.get<AccountsService>(AccountsService);
+  });
+
+  describe('list()', () => {
+    it('returns accounts from Prisma without qrCode field', async () => {
+      const result = await service.list();
+      expect(result).toEqual(mockAccounts);
+      expect(mockPrisma.account.findMany).toHaveBeenCalledWith(
+        expect.objectContaining({ select: expect.not.objectContaining({ qrCode: true }) }),
+      );
+    });
+  });
+
+  describe('getQr()', () => {
+    it('returns null qrDataUrl when account has no qrCode', async () => {
+      mockPrisma.account.findUnique.mockResolvedValue({ status: 'ACTIVE', qrCode: null });
+      const result = await service.getQr('acc_1');
+      expect(result).toEqual({ status: 'ACTIVE', qrDataUrl: null });
+      expect(QRCode.toDataURL).not.toHaveBeenCalled();
+    });
+
+    it('converts qrCode string to data URL when qrCode is present', async () => {
+      mockPrisma.account.findUnique.mockResolvedValue({ status: 'DISCONNECTED', qrCode: 'raw-qr-string' });
+      const result = await service.getQr('acc_1');
+      expect(QRCode.toDataURL).toHaveBeenCalledWith('raw-qr-string');
+      expect(result).toEqual({ status: 'DISCONNECTED', qrDataUrl: 'data:image/png;base64,fakedata' });
+    });
+
+    it('returns not_found status when account does not exist', async () => {
+      mockPrisma.account.findUnique.mockResolvedValue(null);
+      const result = await service.getQr('nonexistent');
+      expect(result).toEqual({ status: 'not_found', qrDataUrl: null });
+    });
+  });
+});