feat: add brocker account list

src/tbank/brokerage-accounts.service.spec.ts

@@ -0,0 +1,105 @@
+import { BadRequestException, ConflictException } from '@nestjs/common';
+import { ServiceUnavailableException } from '@nestjs/common';
+
+jest.mock('../prisma/prisma.service', () => ({
+  PrismaService: class PrismaService {},
+}));
+
+import { BrokerageAccountsService } from './brokerage-accounts.service';
+import { TbankCrypto } from './tbank.crypto';
+
+describe('BrokerageAccountsService', () => {
+  const encryptionKey = 'MDEyMzQ1Njc4OWFiY2RlZjAxMjM0NTY3ODlhYmNkZWY=';
+  const prisma = { tbankConnection: { findUnique: jest.fn() } };
+  const config = { getOrThrow: jest.fn(() => encryptionKey) };
+  const tbank = { getOpenAccounts: jest.fn() };
+  const service = new BrokerageAccountsService(
+    prisma as never,
+    config as never,
+    tbank as never,
+  );
+  const crypto = TbankCrypto.fromBase64(encryptionKey);
+
+  beforeEach(() => jest.clearAllMocks());
+
+  it('does not call T-Bank without a connection', async () => {
+    prisma.tbankConnection.findUnique.mockResolvedValue(null);
+
+    await expect(service.list('user-1')).rejects.toEqual(
+      expect.any(ConflictException),
+    );
+    expect(tbank.getOpenAccounts).not.toHaveBeenCalled();
+  });
+
+  it('normalizes supported accounts and ignores unsupported ones', async () => {
+    prisma.tbankConnection.findUnique.mockResolvedValue({
+      encryptedToken: crypto.encrypt('token'),
+    });
+    tbank.getOpenAccounts.mockResolvedValue([
+      {
+        id: 'brokerage',
+        type: 'ACCOUNT_TYPE_TINKOFF',
+        name: ' Основной ',
+        openedDate: { seconds: '1723507200' },
+      },
+      {
+        id: 'debit',
+        type: 'ACCOUNT_TYPE_DEBIT',
+        name: 'Дебетовый',
+      },
+      {
+        id: 'iis',
+        type: 'ACCOUNT_TYPE_TINKOFF_IIS',
+        name: ' ',
+      },
+    ]);
+
+    await expect(service.list('user-1')).resolves.toEqual([
+      {
+        id: 'brokerage',
+        type: 'BROKERAGE',
+        name: 'Основной',
+        openedOn: '2024-08-13',
+      },
+      {
+        id: 'iis',
+        type: 'INDIVIDUAL_INVESTMENT',
+        name: 'ИИС',
+        openedOn: null,
+      },
+    ]);
+  });
+
+  it('retains the connection when T-Bank rejects its token', async () => {
+    prisma.tbankConnection.findUnique.mockResolvedValue({
+      encryptedToken: crypto.encrypt('token'),
+    });
+    tbank.getOpenAccounts.mockRejectedValue(new Error('INVALID_TBANK_TOKEN'));
+
+    await expect(service.list('user-1')).rejects.toEqual(
+      expect.any(BadRequestException),
+    );
+  });
+
+  it('returns an empty list from T-Bank unchanged', async () => {
+    prisma.tbankConnection.findUnique.mockResolvedValue({
+      encryptedToken: crypto.encrypt('token'),
+    });
+    tbank.getOpenAccounts.mockResolvedValue([]);
+
+    await expect(service.list('user-1')).resolves.toEqual([]);
+  });
+
+  it('propagates an unavailable T-Bank response', async () => {
+    prisma.tbankConnection.findUnique.mockResolvedValue({
+      encryptedToken: crypto.encrypt('token'),
+    });
+    tbank.getOpenAccounts.mockRejectedValue(
+      new ServiceUnavailableException({ code: 'TBANK_UNAVAILABLE' }),
+    );
+
+    await expect(service.list('user-1')).rejects.toEqual(
+      expect.any(ServiceUnavailableException),
+    );
+  });
+});