test(web): increase frontend test coverage to ~70% page coverage

- Fix vitest config to include [locale] directory tests (was excluded)
- Fix register.spec.tsx: use getByRole('heading') to avoid duplicate text match
- Fix search.spec.tsx: add QueryClientProvider wrapper and mock saved searches hook
- Add 12 new page test files covering dashboard, admin, public, and OAuth pages:
  - dashboard (main, profile, payments, subscription, KYC)
  - admin (dashboard, users)
  - public (landing, pricing)
  - analytics
  - OAuth callbacks (Google, Zalo)
- 29 test files, 174 tests, 16/23 pages covered (69.6%)

Co-Authored-By: Paperclip <noreply@paperclip.ing>

apps/web/app/[locale]/(dashboard)/analytics/__tests__/analytics.spec.tsx

@@ -0,0 +1,78 @@
+/* eslint-disable import-x/order */
+import { render, screen, waitFor } from '@testing-library/react';
+import { beforeEach, describe, expect, it, vi } from 'vitest';
+
+vi.mock('next/dynamic', () => ({
+  default: () => {
+    const Mock = () => <div data-testid="chart-placeholder">Chart</div>;
+    Mock.displayName = 'MockChart';
+    return Mock;
+  },
+}));
+
+const mockMarketReport = {
+  districts: [
+    { district: 'Quan 1', totalListings: 100, avgPriceM2: 120000000, medianPrice: '15000000000', daysOnMarket: 45, yoyChange: 5.2, inventoryLevel: 50 },
+  ],
+};
+
+const mockHeatmap = {
+  dataPoints: [
+    { district: 'Quan 1', avgPriceM2: 120000000, totalListings: 100, lat: 10.77, lng: 106.7 },
+  ],
+};
+
+const mockDistrictStats = {
+  districts: [
+    { district: 'Quan 1', propertyType: 'APARTMENT', medianPrice: '15000000000', avgPriceM2: 120000000, totalListings: 100, daysOnMarket: 45, yoyChange: 5.2 },
+  ],
+};
+
+const mockPriceTrend = {
+  trend: [
+    { period: '2025-Q4', avgPriceM2: 115000000, totalListings: 90 },
+    { period: '2026-Q1', avgPriceM2: 120000000, totalListings: 100 },
+  ],
+};
+
+vi.mock('@/lib/hooks/use-analytics', () => ({
+  useMarketReport: vi.fn(() => ({ data: mockMarketReport, isLoading: false, error: null })),
+  useHeatmap: vi.fn(() => ({ data: mockHeatmap, isLoading: false })),
+  useDistrictStats: vi.fn(() => ({ data: mockDistrictStats, isLoading: false })),
+  usePriceTrend: vi.fn(() => ({ data: mockPriceTrend, isLoading: false })),
+}));
+
+import AnalyticsPage from '../page';
+
+describe('AnalyticsPage', () => {
+  beforeEach(() => {
+    vi.clearAllMocks();
+  });
+
+  it('renders analytics page heading', () => {
+    render(<AnalyticsPage />);
+    expect(screen.getByText('Phân tích thị trường')).toBeInTheDocument();
+  });
+
+  it('renders summary cards', () => {
+    render(<AnalyticsPage />);
+    expect(screen.getByText('Tổng tin đăng')).toBeInTheDocument();
+    expect(screen.getByText('Giá TB/m²')).toBeInTheDocument();
+    expect(screen.getByText('Ngày trung bình để bán')).toBeInTheDocument();
+  });
+
+  it('renders city selection buttons', () => {
+    render(<AnalyticsPage />);
+    expect(screen.getByRole('button', { name: 'Ho Chi Minh' })).toBeInTheDocument();
+    expect(screen.getByRole('button', { name: 'Ha Noi' })).toBeInTheDocument();
+    expect(screen.getByRole('button', { name: 'Da Nang' })).toBeInTheDocument();
+  });
+
+  it('renders tab navigation', () => {
+    render(<AnalyticsPage />);
+    expect(screen.getByText('Tổng quan')).toBeInTheDocument();
+    expect(screen.getByText('Xu hướng giá')).toBeInTheDocument();
+    expect(screen.getByText('Chi tiết quận')).toBeInTheDocument();
+    expect(screen.getByText('Hiệu suất')).toBeInTheDocument();
+  });
+});

apps/web/app/[locale]/(dashboard)/dashboard/__tests__/dashboard.spec.tsx

@@ -0,0 +1,130 @@
+/* eslint-disable import-x/order */
+import { render, screen, waitFor } from '@testing-library/react';
+import { beforeEach, describe, expect, it, vi } from 'vitest';
+
+vi.mock('next/dynamic', () => ({
+  default: () => {
+    const Mock = () => <div data-testid="chart-placeholder">Chart</div>;
+    Mock.displayName = 'MockChart';
+    return Mock;
+  },
+}));
+
+vi.mock('next/image', () => ({
+  default: (props: Record<string, unknown>) => <img {...props} />,
+}));
+
+vi.mock('next/link', () => ({
+  default: ({ children, href, ...props }: { children: React.ReactNode; href: string; [key: string]: unknown }) => (
+    <a href={href} {...props}>{children}</a>
+  ),
+}));
+
+const mockMarketReport = {
+  districts: [
+    { district: 'Quan 1', totalListings: 100, avgPriceM2: 120000000, medianPrice: '15000000000', daysOnMarket: 45, yoyChange: 5.2, inventoryLevel: 50 },
+    { district: 'Quan 7', totalListings: 80, avgPriceM2: 60000000, medianPrice: '8000000000', daysOnMarket: 30, yoyChange: -2.1, inventoryLevel: 30 },
+  ],
+};
+
+const mockHeatmap = {
+  dataPoints: [
+    { district: 'Quan 1', avgPriceM2: 120000000, totalListings: 100, lat: 10.77, lng: 106.7 },
+    { district: 'Quan 7', avgPriceM2: 60000000, totalListings: 80, lat: 10.73, lng: 106.72 },
+  ],
+};
+
+const mockListings = {
+  data: [
+    {
+      id: '1',
+      status: 'ACTIVE',
+      transactionType: 'SALE',
+      priceVND: '5000000000',
+      viewCount: 10,
+      saveCount: 2,
+      inquiryCount: 3,
+      publishedAt: '2024-01-01',
+      createdAt: '2024-01-01',
+      pricePerM2: null,
+      rentPriceMonthly: null,
+      commissionPct: null,
+      property: {
+        id: 'p1',
+        propertyType: 'APARTMENT',
+        title: 'Căn hộ Quận 7',
+        description: 'Test',
+        address: '123 Nguyễn Hữu Thọ',
+        ward: 'Tân Hưng',
+        district: 'Quận 7',
+        city: 'Hồ Chí Minh',
+        areaM2: 75,
+        bedrooms: 2,
+        bathrooms: 2,
+        floors: null,
+        direction: null,
+        yearBuilt: null,
+        legalStatus: null,
+        amenities: null,
+        projectName: null,
+        media: [],
+      },
+      seller: { id: 's1', fullName: 'Nguyen Van A', phone: '0912345678' },
+      agent: null,
+    },
+  ],
+  total: 1,
+  page: 1,
+  limit: 6,
+  totalPages: 1,
+};
+
+vi.mock('@/lib/hooks/use-analytics', () => ({
+  useMarketReport: vi.fn(() => ({ data: mockMarketReport, isLoading: false })),
+  useHeatmap: vi.fn(() => ({ data: mockHeatmap, isLoading: false })),
+}));
+
+vi.mock('@/lib/hooks/use-listings', () => ({
+  useListingsSearch: vi.fn(() => ({ data: mockListings, isLoading: false })),
+}));
+
+vi.mock('@/components/listings/listing-status-badge', () => ({
+  ListingStatusBadge: ({ status }: { status: string }) => <span data-testid="status-badge">{status}</span>,
+}));
+
+import DashboardPage from '../page';
+
+describe('DashboardPage', () => {
+  beforeEach(() => {
+    vi.clearAllMocks();
+  });
+
+  it('renders the dashboard heading', () => {
+    render(<DashboardPage />);
+    expect(screen.getByText('Bảng điều khiển')).toBeInTheDocument();
+  });
+
+  it('renders stat cards with data', () => {
+    render(<DashboardPage />);
+    expect(screen.getByText('Tin đăng của tôi')).toBeInTheDocument();
+    expect(screen.getByText('Lượt xem')).toBeInTheDocument();
+    expect(screen.getByText('Liên hệ')).toBeInTheDocument();
+    expect(screen.getByText('Giá TB thị trường')).toBeInTheDocument();
+  });
+
+  it('renders recent listings section', () => {
+    render(<DashboardPage />);
+    expect(screen.getByText('Tin đăng gần đây')).toBeInTheDocument();
+    expect(screen.getByText(/căn hộ quận 7/i)).toBeInTheDocument();
+  });
+
+  it('renders "Đăng tin mới" button', () => {
+    render(<DashboardPage />);
+    expect(screen.getByRole('link', { name: /đăng tin mới/i })).toBeInTheDocument();
+  });
+
+  it('renders market summary card', () => {
+    render(<DashboardPage />);
+    expect(screen.getByText(/thị trường ho chi minh/i)).toBeInTheDocument();
+  });
+});

apps/web/app/[locale]/(dashboard)/dashboard/__tests__/kyc.spec.tsx

@@ -0,0 +1,81 @@
+/* eslint-disable import-x/order */
+import { render, screen, waitFor } from '@testing-library/react';
+import userEvent from '@testing-library/user-event';
+import { beforeEach, describe, expect, it, vi } from 'vitest';
+import { useAuthStore } from '@/lib/auth-store';
+
+vi.mock('@/lib/auth-store', () => {
+  const store = {
+    user: {
+      id: 'user-1',
+      fullName: 'Nguyen Van A',
+      phone: '0912345678',
+      kycStatus: 'NONE',
+    },
+    fetchProfile: vi.fn(),
+  };
+  return {
+    useAuthStore: vi.fn((selector) => {
+      if (typeof selector === 'function') return selector(store);
+      return store;
+    }),
+  };
+});
+
+vi.mock('@/lib/api-client', () => ({
+  apiClient: {
+    patch: vi.fn().mockResolvedValue({}),
+  },
+}));
+
+import KycPage from '../kyc/page';
+
+describe('KycPage', () => {
+  beforeEach(() => {
+    vi.clearAllMocks();
+  });
+
+  it('renders KYC page heading', () => {
+    render(<KycPage />);
+    expect(screen.getByText('Xác minh danh tính (KYC)')).toBeInTheDocument();
+  });
+
+  it('renders KYC status badge as not verified', () => {
+    render(<KycPage />);
+    expect(screen.getByText('Chưa xác minh')).toBeInTheDocument();
+  });
+
+  it('renders step indicator', () => {
+    render(<KycPage />);
+    expect(screen.getByText('1')).toBeInTheDocument();
+    expect(screen.getByText('2')).toBeInTheDocument();
+    expect(screen.getByText('3')).toBeInTheDocument();
+  });
+
+  it('renders document type selector on step 1', () => {
+    render(<KycPage />);
+    expect(screen.getByLabelText(/loại giấy tờ/i)).toBeInTheDocument();
+    expect(screen.getByLabelText(/số giấy tờ/i)).toBeInTheDocument();
+  });
+
+  it('shows error when continuing without document number', async () => {
+    render(<KycPage />);
+
+    await userEvent.click(screen.getByRole('button', { name: /tiếp tục/i }));
+
+    await waitFor(() => {
+      expect(screen.getByText(/vui lòng nhập số giấy tờ/i)).toBeInTheDocument();
+    });
+  });
+
+  it('advances to step 2 after filling document number', async () => {
+    render(<KycPage />);
+
+    await userEvent.type(screen.getByLabelText(/số giấy tờ/i), '012345678901');
+    await userEvent.click(screen.getByRole('button', { name: /tiếp tục/i }));
+
+    await waitFor(() => {
+      expect(screen.getByLabelText(/ảnh mặt trước/i)).toBeInTheDocument();
+    });
+  });
+});

apps/web/app/[locale]/(dashboard)/dashboard/__tests__/payments.spec.tsx

@@ -0,0 +1,66 @@
+/* eslint-disable import-x/order */
+import { render, screen, waitFor } from '@testing-library/react';
+import { beforeEach, describe, expect, it, vi } from 'vitest';
+
+const mockTransactions = {
+  items: [
+    {
+      id: 'tx-1',
+      type: 'SUBSCRIPTION',
+      status: 'COMPLETED',
+      amountVND: '499000',
+      provider: 'VNPAY',
+      providerTxId: 'TXN123456789012',
+      createdAt: '2024-06-15T10:00:00.000Z',
+    },
+    {
+      id: 'tx-2',
+      type: 'LISTING_FEE',
+      status: 'PENDING',
+      amountVND: '100000',
+      provider: 'MOMO',
+      providerTxId: null,
+      createdAt: '2024-06-20T10:00:00.000Z',
+    },
+  ],
+  total: 2,
+};
+
+vi.mock('@/lib/hooks/use-payments', () => ({
+  useTransactions: vi.fn(() => ({ data: mockTransactions, isLoading: false })),
+}));
+
+import PaymentsPage from '../payments/page';
+
+describe('PaymentsPage', () => {
+  beforeEach(() => {
+    vi.clearAllMocks();
+  });
+
+  it('renders payment page heading', () => {
+    render(<PaymentsPage />);
+    expect(screen.getByText('Thanh toán')).toBeInTheDocument();
+  });
+
+  it('renders summary cards', () => {
+    render(<PaymentsPage />);
+    expect(screen.getByText('Tổng giao dịch')).toBeInTheDocument();
+    expect(screen.getByText('Đã thanh toán')).toBeInTheDocument();
+    expect(screen.getByText('Đang chờ')).toBeInTheDocument();
+  });
+
+  it('renders transaction history section', () => {
+    render(<PaymentsPage />);
+    expect(screen.getByText('Lịch sử giao dịch')).toBeInTheDocument();
+  });
+
+  it('renders transaction count correctly', () => {
+    render(<PaymentsPage />);
+    expect(screen.getByText('2')).toBeInTheDocument();
+  });
+
+  it('renders status filter', () => {
+    render(<PaymentsPage />);
+    expect(screen.getByText('Tất cả')).toBeInTheDocument();
+  });
+});

apps/web/app/[locale]/(dashboard)/dashboard/__tests__/profile.spec.tsx

@@ -0,0 +1,96 @@
+/* eslint-disable import-x/order */
+import { render, screen, waitFor } from '@testing-library/react';
+import userEvent from '@testing-library/user-event';
+import { beforeEach, describe, expect, it, vi } from 'vitest';
+import { useAuthStore } from '@/lib/auth-store';
+
+vi.mock('@/lib/auth-store', () => {
+  const store = {
+    user: {
+      id: 'user-1',
+      fullName: 'Nguyen Van A',
+      phone: '0912345678',
+      email: 'test@example.com',
+      role: 'BUYER',
+      kycStatus: 'NONE',
+      isActive: true,
+      createdAt: '2024-01-01T00:00:00.000Z',
+    },
+    fetchProfile: vi.fn(),
+  };
+  return {
+    useAuthStore: vi.fn((selector) => {
+      if (typeof selector === 'function') return selector(store);
+      return store;
+    }),
+  };
+});
+
+vi.mock('@/lib/profile-api', () => ({
+  profileApi: {
+    getAgentProfile: vi.fn().mockRejectedValue(new Error('Not an agent')),
+    updateProfile: vi.fn().mockResolvedValue({}),
+  },
+}));
+
+import ProfilePage from '../profile/page';
+
+describe('ProfilePage', () => {
+  beforeEach(() => {
+    vi.clearAllMocks();
+  });
+
+  it('renders profile heading', async () => {
+    render(<ProfilePage />);
+    expect(screen.getByText('Hồ sơ cá nhân')).toBeInTheDocument();
+  });
+
+  it('renders user information', async () => {
+    render(<ProfilePage />);
+
+    await waitFor(() => {
+      expect(screen.getByText('Nguyen Van A')).toBeInTheDocument();
+      expect(screen.getByText('0912345678')).toBeInTheDocument();
+    });
+  });
+
+  it('renders KYC status badge', async () => {
+    render(<ProfilePage />);
+
+    await waitFor(() => {
+      expect(screen.getByText('Chưa xác minh')).toBeInTheDocument();
+    });
+  });
+
+  it('renders edit button', async () => {
+    render(<ProfilePage />);
+
+    await waitFor(() => {
+      expect(screen.getByRole('button', { name: /chỉnh sửa/i })).toBeInTheDocument();
+    });
+  });
+
+  it('enters edit mode when edit button is clicked', async () => {
+    render(<ProfilePage />);
+
+    await waitFor(() => {
+      expect(screen.getByRole('button', { name: /chỉnh sửa/i })).toBeInTheDocument();
+    });
+
+    await userEvent.click(screen.getByRole('button', { name: /chỉnh sửa/i }));
+
+    await waitFor(() => {
+      expect(screen.getByRole('button', { name: /lưu thay đổi/i })).toBeInTheDocument();
+      expect(screen.getByRole('button', { name: /hủy/i })).toBeInTheDocument();
+    });
+  });
+
+  it('renders account status section', async () => {
+    render(<ProfilePage />);
+
+    await waitFor(() => {
+      expect(screen.getByText('Trạng thái tài khoản')).toBeInTheDocument();
+      expect(screen.getByText('Hoạt động')).toBeInTheDocument();
+    });
+  });
+});

apps/web/app/[locale]/(dashboard)/dashboard/__tests__/subscription.spec.tsx

@@ -0,0 +1,87 @@
+/* eslint-disable import-x/order */
+import { render, screen, waitFor } from '@testing-library/react';
+import { beforeEach, describe, expect, it, vi } from 'vitest';
+
+const mockPlans = [
+  {
+    id: 'plan-1',
+    tier: 'FREE',
+    name: 'Miễn phí',
+    priceMonthlyVND: '0',
+    priceYearlyVND: '0',
+    maxListings: 3,
+    maxSavedSearches: 5,
+    features: {},
+    isActive: true,
+  },
+  {
+    id: 'plan-2',
+    tier: 'AGENT_PRO',
+    name: 'Agent Pro',
+    priceMonthlyVND: '499000',
+    priceYearlyVND: '4990000',
+    maxListings: 50,
+    maxSavedSearches: 30,
+    features: {},
+    isActive: true,
+  },
+];
+
+const mockBilling = {
+  subscription: null,
+  payments: [],
+};
+
+vi.mock('@/lib/hooks/use-subscription', () => ({
+  usePlans: vi.fn(() => ({ data: mockPlans, isLoading: false })),
+  useBillingHistory: vi.fn(() => ({ data: mockBilling, isLoading: false })),
+  useQuota: vi.fn(() => ({ data: null })),
+  subscriptionKeys: { billing: () => ['billing'] },
+}));
+
+vi.mock('@/lib/subscription-api', () => ({
+  subscriptionApi: {
+    createSubscription: vi.fn(),
+    upgradeSubscription: vi.fn(),
+  },
+}));
+
+vi.mock('@tanstack/react-query', async (importOriginal) => {
+  const actual = (await importOriginal()) as Record<string, unknown>;
+  return {
+    ...actual,
+    useQueryClient: () => ({
+      invalidateQueries: vi.fn(),
+    }),
+  };
+});
+
+import SubscriptionPage from '../subscription/page';
+
+describe('SubscriptionPage', () => {
+  beforeEach(() => {
+    vi.clearAllMocks();
+  });
+
+  it('renders subscription page heading', () => {
+    render(<SubscriptionPage />);
+    expect(screen.getByText('Gói dịch vụ')).toBeInTheDocument();
+  });
+
+  it('renders tab navigation', () => {
+    render(<SubscriptionPage />);
+    expect(screen.getByText('Gói hiện tại')).toBeInTheDocument();
+    expect(screen.getByText('So sánh gói')).toBeInTheDocument();
+    expect(screen.getByText('Lịch sử thanh toán')).toBeInTheDocument();
+  });
+
+  it('renders current plan info for free tier', () => {
+    render(<SubscriptionPage />);
+    expect(screen.getByText(/bạn đang sử dụng gói miễn phí/i)).toBeInTheDocument();
+  });
+
+  it('renders plan description text', () => {
+    render(<SubscriptionPage />);
+    expect(screen.getByText(/quản lý gói đăng ký/i)).toBeInTheDocument();
+  });
+});