test: add integration test for holdings total_value multi snapshot up…

src/modules/wallets/__tests__/wallet-holdings-multiple-snapshots.integration.test.ts

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+import supertest from 'supertest';
+import app from '../../../app';
+import { prisma } from '../../../utils/prisma.utils';
+
+describe('GET /api/v1/wallets/:address/holdings - multiple price snapshot updates', () => {
+  const WALLET_ADDRESS = 'GAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA';
+  const USER_ID = 'wallet-multi-snap-user';
+  const CREATOR_ID = 'wallet-multi-snap-creator';
+  const HOLDING_BALANCE = 5.0; // 5 keys held
+
+  beforeAll(async () => {
+    // Clean up database tables to avoid tests leaking into each other
+    await prisma.keyOwnership.deleteMany({});
+    await prisma.creatorPriceSnapshot.deleteMany({});
+    await prisma.creatorProfile.deleteMany({});
+    await prisma.user.deleteMany({});
+
+    // Seed a User
+    await prisma.user.create({
+      data: {
+        id: USER_ID,
+        email: 'wallet-multi-snap@example.test',
+        passwordHash: 'dummy-hash',
+        firstName: 'Wallet',
+        lastName: 'Multi Snap',
+      },
+    });
+
+    // Seed a Creator
+    await prisma.creatorProfile.create({
+      data: {
+        id: CREATOR_ID,
+        userId: USER_ID,
+        handle: 'wallet_multi_snap_creator',
+        displayName: 'Wallet Multi Snap Creator',
+      },
+    });
+
+    // Seed KeyOwnership
+    await prisma.keyOwnership.create({
+      data: {
+        ownerAddress: WALLET_ADDRESS,
+        creatorId: CREATOR_ID,
+        balance: HOLDING_BALANCE,
+      },
+    });
+  });
+
+  afterAll(async () => {
+    // Clean up seeded database tables
+    await prisma.keyOwnership.deleteMany({});
+    await prisma.creatorPriceSnapshot.deleteMany({});
+    await prisma.creatorProfile.deleteMany({});
+    await prisma.user.deleteMany({});
+  });
+
+  it('should reflect the correct total_value after multiple price snapshot updates', async () => {
+    // First snapshot update
+    await prisma.creatorPriceSnapshot.upsert({
+      where: { creatorId: CREATOR_ID },
+      update: { currentPrice: 100n },
+      create: { creatorId: CREATOR_ID, currentPrice: 100n },
+    });
+
+    let res = await supertest(app).get(`/api/v1/wallets/${WALLET_ADDRESS}/holdings`);
+    expect(res.status).toBe(200);
+    expect(res.body.success).toBe(true);
+    let items = res.body.data.items;
+    expect(items).toHaveLength(1);
+    expect(items[0].current_price).toBe('100');
+    expect(items[0].total_value).toBe('500');
+
+    // Second snapshot update
+    await prisma.creatorPriceSnapshot.upsert({
+      where: { creatorId: CREATOR_ID },
+      update: { currentPrice: 250n },
+      create: { creatorId: CREATOR_ID, currentPrice: 250n },
+    });
+
+    res = await supertest(app).get(`/api/v1/wallets/${WALLET_ADDRESS}/holdings`);
+    expect(res.status).toBe(200);
+    expect(res.body.success).toBe(true);
+    items = res.body.data.items;
+    expect(items).toHaveLength(1);
+    expect(items[0].current_price).toBe('250');
+    expect(items[0].total_value).toBe('1250');
+
+    // Third snapshot update
+    await prisma.creatorPriceSnapshot.upsert({
+      where: { creatorId: CREATOR_ID },
+      update: { currentPrice: 300n },
+      create: { creatorId: CREATOR_ID, currentPrice: 300n },
+    });
+
+    res = await supertest(app).get(`/api/v1/wallets/${WALLET_ADDRESS}/holdings`);
+    expect(res.status).toBe(200);
+    expect(res.body.success).toBe(true);
+    items = res.body.data.items;
+    expect(items).toHaveLength(1);
+    expect(items[0].current_price).toBe('300');
+    expect(items[0].total_value).toBe('1500');
+  });
+});