add tests

apps/website/components/auth/AuthError.test.tsx

@@ -0,0 +1,64 @@
+import React from 'react';
+import { describe, it, expect } from 'vitest';
+import { render, screen } from '@testing-library/react';
+import { AuthError } from './AuthError';
+
+describe('AuthError', () => {
+  describe('rendering', () => {
+    it('should render error message with action', () => {
+      render(<AuthError action="login" />);
+
+      expect(screen.getByText('Failed to load login page')).toBeInTheDocument();
+      expect(screen.getByText('Error')).toBeInTheDocument();
+    });
+
+    it('should render error message with different actions', () => {
+      const actions = ['login', 'register', 'reset-password', 'verify-email'];
+
+      actions.forEach(action => {
+        render(<AuthError action={action} />);
+        expect(screen.getByText(`Failed to load ${action} page`)).toBeInTheDocument();
+      });
+    });
+
+    it('should render with empty action', () => {
+      render(<AuthError action="" />);
+      expect(screen.getByText('Failed to load  page')).toBeInTheDocument();
+    });
+
+    it('should render with special characters in action', () => {
+      render(<AuthError action="user-login" />);
+      expect(screen.getByText('Failed to load user-login page')).toBeInTheDocument();
+    });
+  });
+
+  describe('accessibility', () => {
+    it('should have proper error banner structure', () => {
+      render(<AuthError action="login" />);
+      
+      // The ErrorBanner component should have proper ARIA attributes
+      // This test verifies the component renders correctly
+      expect(screen.getByText('Error')).toBeInTheDocument();
+      expect(screen.getByText('Failed to load login page')).toBeInTheDocument();
+    });
+  });
+
+  describe('edge cases', () => {
+    it('should handle long action names', () => {
+      const longAction = 'very-long-action-name-that-might-break-layout';
+      render(<AuthError action={longAction} />);
+      
+      expect(screen.getByText(`Failed to load ${longAction} page`)).toBeInTheDocument();
+    });
+
+    it('should handle action with spaces', () => {
+      render(<AuthError action="user login" />);
+      expect(screen.getByText('Failed to load user login page')).toBeInTheDocument();
+    });
+
+    it('should handle action with numbers', () => {
+      render(<AuthError action="step2" />);
+      expect(screen.getByText('Failed to load step2 page')).toBeInTheDocument();
+    });
+  });
+});