feat: re-introduce regression testing suite with pnpm

src/services/__tests__/save-tasting.test.ts

@@ -0,0 +1,80 @@
+import { describe, it, expect, vi, beforeEach } from 'vitest';
+import { saveTasting } from '../save-tasting';
+import { createServerActionClient } from '@supabase/auth-helpers-nextjs';
+
+// Mock Supabase
+vi.mock('@supabase/auth-helpers-nextjs', () => ({
+    createServerActionClient: vi.fn(),
+}));
+
+// Mock next/headers
+vi.mock('next/headers', () => ({
+    cookies: vi.fn(),
+}));
+
+// Mock next/cache
+vi.mock('next/cache', () => ({
+    revalidatePath: vi.fn(),
+}));
+
+describe('saveTasting', () => {
+    const mockInsert = vi.fn();
+    const mockSelect = vi.fn();
+    const mockSingle = vi.fn();
+    const mockGetSession = vi.fn();
+
+    beforeEach(() => {
+        vi.clearAllMocks();
+
+        const mockSupabase = {
+            auth: {
+                getSession: mockGetSession,
+            },
+            from: vi.fn().mockReturnValue({
+                insert: mockInsert,
+                select: mockSelect,
+                eq: vi.fn(),
+            }),
+        };
+
+        mockInsert.mockReturnValue({ select: mockSelect });
+        mockSelect.mockReturnValue({ single: mockSingle });
+
+        (createServerActionClient as any).mockReturnValue(mockSupabase);
+    });
+
+    it('should save a tasting note and tags with user_id', async () => {
+        const userId = 'user-123';
+        mockGetSession.mockResolvedValue({
+            data: { session: { user: { id: userId } } },
+        });
+
+        mockSingle.mockResolvedValue({
+            data: { id: 'tasting-456' },
+            error: null,
+        });
+
+        // Mock the different tables
+        const mockTagInsert = vi.fn().mockResolvedValue({ error: null });
+        (createServerActionClient({ cookies: {} as any }).from as any).mockImplementation((table: string) => {
+            if (table === 'tastings') {
+                return { insert: mockInsert, select: mockSelect };
+            }
+            return { insert: mockTagInsert };
+        });
+
+        const result = await saveTasting({
+            bottle_id: 'bottle-789',
+            rating: 90,
+            buddy_ids: ['buddy-1', 'buddy-2'],
+        });
+
+        expect(result.success).toBe(true);
+
+        // Crucial: Check that tags were inserted with the correct user_id to prevent RLS recursion
+        expect(mockTagInsert).toHaveBeenCalledWith(expect.arrayContaining([
+            expect.objectContaining({ buddy_id: 'buddy-1', user_id: userId }),
+            expect.objectContaining({ buddy_id: 'buddy-2', user_id: userId }),
+        ]));
+    });
+});