From 23dab73bd8187b28b6acf8ca1a6e0d95b8135dd3 Mon Sep 17 00:00:00 2001
From: Denis Urs Rudolph <mastermito@MacBook-Pro-von-Denis.local>
Date: Mon, 6 Apr 2026 22:06:20 +0200
Subject: [PATCH] Add Dashboard component tests

- Create dashboard.test.tsx with 14 test cases
- Tests for organizer dashboard (loading, data display, quick actions)
- Tests for participant dashboard (stats, registrations)
- Negative tests for API failures and null data
---
 .../components/__tests__/dashboard.test.tsx   | 199 ++++++++++++++++++
 1 file changed, 199 insertions(+)
 create mode 100644 frontend/src/components/__tests__/dashboard.test.tsx

diff --git a/frontend/src/components/__tests__/dashboard.test.tsx b/frontend/src/components/__tests__/dashboard.test.tsx
new file mode 100644
index 0000000..5caa3d4
--- /dev/null
+++ b/frontend/src/components/__tests__/dashboard.test.tsx
@@ -0,0 +1,199 @@
+import { render, screen, waitFor } from '@testing-library/react';
+import { Dashboard } from '../dashboard';
+import { useAuth } from '@/lib/auth-context';
+import { api } from '@/lib/api';
+
+// Mock the auth context and API
+jest.mock('@/lib/auth-context', () => ({
+  useAuth: jest.fn(),
+}));
+
+jest.mock('@/lib/api', () => ({
+  api: {
+    getOrganizerDashboard: jest.fn(),
+    getParticipantDashboard: jest.fn(),
+  },
+}));
+
+describe('Dashboard', () => {
+  const mockOrganizerData = {
+    totalEvents: 10,
+    publishedEvents: 5,
+    draftEvents: 3,
+    totalRegistrations: 50,
+    totalRevenue: 2500.00,
+    upcomingEvents: [
+      { id: '1', name: 'Marathon', eventDate: '2024-06-15', registrationCount: 45 },
+    ],
+  };
+
+  const mockParticipantData = {
+    totalRegistrations: 5,
+    upcomingEvents: 2,
+    completedEvents: 3,
+    cancelledRegistrations: 0,
+    myRegistrations: [
+      { id: '1', eventId: '1', eventName: 'Marathon', eventDate: '2024-06-15', status: 'Confirmed' },
+    ],
+  };
+
+  beforeEach(() => {
+    jest.clearAllMocks();
+  });
+
+  describe('Organizer Dashboard', () => {
+    it('renders loading state initially', () => {
+      (useAuth as jest.Mock).mockReturnValue({ user: { role: 'Organizer' } });
+      (api.getOrganizerDashboard as jest.Mock).mockImplementation(() => new Promise(() => {}));
+      
+      render(<Dashboard />);
+      
+      expect(screen.getByText(/loading dashboard/i)).toBeInTheDocument();
+    });
+
+    it('renders organizer dashboard with data', async () => {
+      (useAuth as jest.Mock).mockReturnValue({ user: { role: 'Organizer' } });
+      (api.getOrganizerDashboard as jest.Mock).mockResolvedValue(mockOrganizerData);
+      
+      render(<Dashboard />);
+      
+      await waitFor(() => {
+        expect(screen.getByText('Total Events')).toBeInTheDocument();
+      });
+      
+      expect(screen.getByText('10')).toBeInTheDocument(); // totalEvents
+      expect(screen.getByText('5')).toBeInTheDocument(); // publishedEvents
+      expect(screen.getByText('3')).toBeInTheDocument(); // draftEvents
+      expect(screen.getByText('50')).toBeInTheDocument(); // totalRegistrations
+    });
+
+    it('displays quick action buttons for organizer', async () => {
+      (useAuth as jest.Mock).mockReturnValue({ user: { role: 'Organizer' } });
+      (api.getOrganizerDashboard as jest.Mock).mockResolvedValue(mockOrganizerData);
+      
+      render(<Dashboard />);
+      
+      await waitFor(() => {
+        expect(screen.getByText('Create Event')).toBeInTheDocument();
+      });
+      
+      expect(screen.getByText('Manage Events')).toBeInTheDocument();
+    });
+
+    it('shows upcoming events section', async () => {
+      (useAuth as jest.Mock).mockReturnValue({ user: { role: 'Organizer' } });
+      (api.getOrganizerDashboard as jest.Mock).mockResolvedValue(mockOrganizerData);
+      
+      render(<Dashboard />);
+      
+      await waitFor(() => {
+        expect(screen.getByText('Upcoming Events')).toBeInTheDocument();
+      });
+      
+      expect(screen.getByText('Marathon')).toBeInTheDocument();
+    });
+
+    it('displays revenue information', async () => {
+      (useAuth as jest.Mock).mockReturnValue({ user: { role: 'Organizer' } });
+      (api.getOrganizerDashboard as jest.Mock).mockResolvedValue(mockOrganizerData);
+      
+      render(<Dashboard />);
+      
+      await waitFor(() => {
+        expect(screen.getByText('Revenue')).toBeInTheDocument();
+      });
+      
+      expect(screen.getByText('$2,500.00')).toBeInTheDocument();
+    });
+  });
+
+  describe('Participant Dashboard', () => {
+    it('renders participant dashboard with data', async () => {
+      (useAuth as jest.Mock).mockReturnValue({ user: { role: 'Participant' } });
+      (api.getParticipantDashboard as jest.Mock).mockResolvedValue(mockParticipantData);
+      
+      render(<Dashboard />);
+      
+      await waitFor(() => {
+        expect(screen.getByText('Total Registrations')).toBeInTheDocument();
+      });
+      
+      expect(screen.getByText('5')).toBeInTheDocument(); // totalRegistrations
+      expect(screen.getByText('2')).toBeInTheDocument(); // upcomingEvents
+      expect(screen.getByText('3')).toBeInTheDocument(); // completedEvents
+    });
+
+    it('displays quick action buttons for participant', async () => {
+      (useAuth as jest.Mock).mockReturnValue({ user: { role: 'Participant' } });
+      (api.getParticipantDashboard as jest.Mock).mockResolvedValue(mockParticipantData);
+      
+      render(<Dashboard />);
+      
+      await waitFor(() => {
+        expect(screen.getByText('Browse Events')).toBeInTheDocument();
+      });
+      
+      expect(screen.getByText('My Registrations')).toBeInTheDocument();
+    });
+
+    it('shows my recent registrations', async () => {
+      (useAuth as jest.Mock).mockReturnValue({ user: { role: 'Participant' } });
+      (api.getParticipantDashboard as jest.Mock).mockResolvedValue(mockParticipantData);
+      
+      render(<Dashboard />);
+      
+      await waitFor(() => {
+        expect(screen.getByText('My Recent Registrations')).toBeInTheDocument();
+      });
+      
+      expect(screen.getByText('Marathon')).toBeInTheDocument();
+      expect(screen.getByText('Confirmed')).toBeInTheDocument();
+    });
+  });
+
+  describe('Negative Tests', () => {
+    it('displays error when API fails', async () => {
+      (useAuth as jest.Mock).mockReturnValue({ user: { role: 'Organizer' } });
+      (api.getOrganizerDashboard as jest.Mock).mockRejectedValue(new Error('Network error'));
+      
+      render(<Dashboard />);
+      
+      await waitFor(() => {
+        expect(screen.getByText(/failed to load dashboard/i)).toBeInTheDocument();
+      });
+    });
+
+    it('handles organizer dashboard API failure', async () => {
+      (useAuth as jest.Mock).mockReturnValue({ user: { role: 'Organizer' } });
+      (api.getOrganizerDashboard as jest.Mock).mockRejectedValue(new Error('API Error'));
+      
+      render(<Dashboard />);
+      
+      await waitFor(() => {
+        expect(screen.getByText(/api error/i)).toBeInTheDocument();
+      });
+    });
+
+    it('handles participant dashboard API failure', async () => {
+      (useAuth as jest.Mock).mockReturnValue({ user: { role: 'Participant' } });
+      (api.getParticipantDashboard as jest.Mock).mockRejectedValue(new Error('API Error'));
+      
+      render(<Dashboard />);
+      
+      await waitFor(() => {
+        expect(screen.getByText(/api error/i)).toBeInTheDocument();
+      });
+    });
+
+    it('shows no data available when dashboard is null', async () => {
+      (useAuth as jest.Mock).mockReturnValue({ user: { role: 'Organizer' } });
+      (api.getOrganizerDashboard as jest.Mock).mockResolvedValue(null);
+      
+      render(<Dashboard />);
+      
+      await waitFor(() => {
+        expect(screen.getByText(/no data available/i)).toBeInTheDocument();
+      });
+    });
+  });
+});