pacifica/tests/integration/test-pacifica-integration.ts

/**
 * Integration tests for Pacifica API integration
 * These tests MUST fail before implementation - TDD approach
 */

import request from 'supertest';
import { Express } from 'express';

// Mock Express app - this will fail until implementation
let app: Express;

describe('Pacifica API Integration Tests', () => {
  beforeAll(() => {
    // This will fail until we implement the API
    // app = require('../../src/app').default;
  });

  describe('Pacifica API Connection', () => {
    it('should connect to Pacifica API successfully', async () => {
      // Test API health endpoint
      const response = await request(app)
        .get('/api/v1/health/pacifica')
        .expect(200);

      expect(response.body).toHaveProperty('success', true);
      expect(response.body.data).toHaveProperty('status', 'connected');
      expect(response.body.data).toHaveProperty('apiVersion');
      expect(response.body.data).toHaveProperty('timestamp');
    });

    it('should handle API connection failures gracefully', async () => {
      // This test will simulate API connection failure
      // In real implementation, this would test with invalid API key
      const response = await request(app)
        .get('/api/v1/health/pacifica')
        .expect(200);

      // Should return connection status even if failed
      expect(response.body).toHaveProperty('success', true);
      expect(response.body.data).toHaveProperty('status');
    });
  });

  describe('Market Data Integration', () => {
    it('should fetch BTC/USD market data', async () => {
      const response = await request(app)
        .get('/api/v1/market-data/BTC/USD')
        .expect(200);

      expect(response.body).toHaveProperty('success', true);
      expect(response.body.data).toHaveProperty('symbol', 'BTC/USD');
      expect(response.body.data).toHaveProperty('price');
      expect(response.body.data).toHaveProperty('volume');
      expect(response.body.data).toHaveProperty('timestamp');
      expect(response.body.data).toHaveProperty('bid');
      expect(response.body.data).toHaveProperty('ask');
      expect(response.body.data).toHaveProperty('spread');
    });

    it('should fetch BTC/ETH market data', async () => {
      const response = await request(app)
        .get('/api/v1/market-data/BTC/ETH')
        .expect(200);

      expect(response.body).toHaveProperty('success', true);
      expect(response.body.data).toHaveProperty('symbol', 'BTC/ETH');
      expect(response.body.data).toHaveProperty('price');
      expect(response.body.data).toHaveProperty('volume');
      expect(response.body.data).toHaveProperty('timestamp');
    });

    it('should handle invalid trading pair', async () => {
      const response = await request(app)
        .get('/api/v1/market-data/INVALID/PAIR')
        .expect(400);

      expect(response.body).toHaveProperty('success', false);
      expect(response.body.error).toContain('Invalid trading pair');
    });

    it('should fetch order book data', async () => {
      const response = await request(app)
        .get('/api/v1/market-data/BTC/USD/orderbook')
        .expect(200);

      expect(response.body).toHaveProperty('success', true);
      expect(response.body.data).toHaveProperty('symbol', 'BTC/USD');
      expect(response.body.data).toHaveProperty('bids');
      expect(response.body.data).toHaveProperty('asks');
      expect(response.body.data).toHaveProperty('timestamp');
      expect(Array.isArray(response.body.data.bids)).toBe(true);
      expect(Array.isArray(response.body.data.asks)).toBe(true);
    });

    it('should fetch recent trades', async () => {
      const response = await request(app)
        .get('/api/v1/market-data/BTC/USD/trades')
        .expect(200);

      expect(response.body).toHaveProperty('success', true);
      expect(response.body.data).toHaveProperty('symbol', 'BTC/USD');
      expect(response.body.data).toHaveProperty('trades');
      expect(Array.isArray(response.body.data.trades)).toBe(true);
    });
  });

  describe('Account Integration', () => {
    it('should fetch account balance from Pacifica', async () => {
      const accountId = 'test-account-id';

      const response = await request(app)
        .get(`/api/v1/accounts/${accountId}/balance/pacifica`)
        .expect(200);

      expect(response.body).toHaveProperty('success', true);
      expect(response.body.data).toHaveProperty('accountId', accountId);
      expect(response.body.data).toHaveProperty('total');
      expect(response.body.data).toHaveProperty('available');
      expect(response.body.data).toHaveProperty('used');
      expect(response.body.data).toHaveProperty('lastUpdated');
    });

    it('should fetch account positions from Pacifica', async () => {
      const accountId = 'test-account-id';

      const response = await request(app)
        .get(`/api/v1/accounts/${accountId}/positions/pacifica`)
        .expect(200);

      expect(response.body).toHaveProperty('success', true);
      expect(response.body.data).toHaveProperty('accountId', accountId);
      expect(response.body.data).toHaveProperty('positions');
      expect(Array.isArray(response.body.data.positions)).toBe(true);
    });

    it('should fetch account orders from Pacifica', async () => {
      const accountId = 'test-account-id';

      const response = await request(app)
        .get(`/api/v1/accounts/${accountId}/orders/pacifica`)
        .expect(200);

      expect(response.body).toHaveProperty('success', true);
      expect(response.body.data).toHaveProperty('accountId', accountId);
      expect(response.body.data).toHaveProperty('orders');
      expect(Array.isArray(response.body.data.orders)).toBe(true);
    });
  });

  describe('Order Execution Integration', () => {
    it('should place market order on Pacifica', async () => {
      const orderData = {
        accountId: 'test-account-id',
        symbol: 'BTC/USD',
        side: 'buy',
        type: 'market',
        volume: 0.01
      };

      const response = await request(app)
        .post('/api/v1/orders/pacifica')
        .send(orderData)
        .expect(201);

      expect(response.body).toHaveProperty('success', true);
      expect(response.body.data).toHaveProperty('id');
      expect(response.body.data).toHaveProperty('accountId', orderData.accountId);
      expect(response.body.data).toHaveProperty('symbol', orderData.symbol);
      expect(response.body.data).toHaveProperty('side', orderData.side);
      expect(response.body.data).toHaveProperty('type', orderData.type);
      expect(response.body.data).toHaveProperty('volume', orderData.volume);
      expect(response.body.data).toHaveProperty('status');
      expect(response.body.data).toHaveProperty('pacificaOrderId');
    });

    it('should place limit order on Pacifica', async () => {
      const orderData = {
        accountId: 'test-account-id',
        symbol: 'BTC/USD',
        side: 'sell',
        type: 'limit',
        volume: 0.01,
        price: 50000
      };

      const response = await request(app)
        .post('/api/v1/orders/pacifica')
        .send(orderData)
        .expect(201);

      expect(response.body).toHaveProperty('success', true);
      expect(response.body.data).toHaveProperty('id');
      expect(response.body.data).toHaveProperty('price', orderData.price);
      expect(response.body.data).toHaveProperty('pacificaOrderId');
    });

    it('should cancel order on Pacifica', async () => {
      const orderId = 'test-order-id';

      const response = await request(app)
        .post(`/api/v1/orders/${orderId}/cancel/pacifica`)
        .expect(200);

      expect(response.body).toHaveProperty('success', true);
      expect(response.body.data).toHaveProperty('status', 'cancelled');
    });

    it('should handle order execution errors', async () => {
      const invalidOrderData = {
        accountId: 'invalid-account',
        symbol: 'INVALID/PAIR',
        side: 'buy',
        type: 'market',
        volume: 0.01
      };

      const response = await request(app)
        .post('/api/v1/orders/pacifica')
        .send(invalidOrderData)
        .expect(400);

      expect(response.body).toHaveProperty('success', false);
      expect(response.body).toHaveProperty('error');
    });
  });

  describe('WebSocket Integration', () => {
    it('should establish WebSocket connection', async () => {
      const response = await request(app)
        .get('/api/v1/websocket/status')
        .expect(200);

      expect(response.body).toHaveProperty('success', true);
      expect(response.body.data).toHaveProperty('connected');
      expect(response.body.data).toHaveProperty('subscriptions');
      expect(Array.isArray(response.body.data.subscriptions)).toBe(true);
    });

    it('should subscribe to price updates', async () => {
      const subscriptionData = {
        symbol: 'BTC/USD',
        type: 'price'
      };

      const response = await request(app)
        .post('/api/v1/websocket/subscribe')
        .send(subscriptionData)
        .expect(200);

      expect(response.body).toHaveProperty('success', true);
      expect(response.body.data).toHaveProperty('subscriptionId');
      expect(response.body.data).toHaveProperty('symbol', subscriptionData.symbol);
      expect(response.body.data).toHaveProperty('type', subscriptionData.type);
    });

    it('should subscribe to order book updates', async () => {
      const subscriptionData = {
        symbol: 'BTC/USD',
        type: 'orderbook'
      };

      const response = await request(app)
        .post('/api/v1/websocket/subscribe')
        .send(subscriptionData)
        .expect(200);

      expect(response.body).toHaveProperty('success', true);
      expect(response.body.data).toHaveProperty('subscriptionId');
      expect(response.body.data).toHaveProperty('symbol', subscriptionData.symbol);
      expect(response.body.data).toHaveProperty('type', subscriptionData.type);
    });

    it('should subscribe to account updates', async () => {
      const subscriptionData = {
        accountId: 'test-account-id',
        type: 'account'
      };

      const response = await request(app)
        .post('/api/v1/websocket/subscribe')
        .send(subscriptionData)
        .expect(200);

      expect(response.body).toHaveProperty('success', true);
      expect(response.body.data).toHaveProperty('subscriptionId');
      expect(response.body.data).toHaveProperty('accountId', subscriptionData.accountId);
      expect(response.body.data).toHaveProperty('type', subscriptionData.type);
    });

    it('should unsubscribe from updates', async () => {
      const subscriptionId = 'test-subscription-id';

      const response = await request(app)
        .post(`/api/v1/websocket/unsubscribe/${subscriptionId}`)
        .expect(200);

      expect(response.body).toHaveProperty('success', true);
      expect(response.body.data).toHaveProperty('unsubscribed', true);
    });
  });

  describe('Rate Limiting Integration', () => {
    it('should respect Pacifica API rate limits', async () => {
      // Make multiple rapid requests
      const requests = [];
      for (let i = 0; i < 10; i++) {
        requests.push(
          request(app)
            .get('/api/v1/market-data/BTC/USD')
            .expect(200)
        );
      }

      const responses = await Promise.all(requests);
      
      // All requests should succeed or be rate limited gracefully
      responses.forEach(response => {
        expect(response.body).toHaveProperty('success');
      });
    });

    it('should handle rate limit exceeded errors', async () => {
      // This test would simulate rate limit exceeded scenario
      const response = await request(app)
        .get('/api/v1/market-data/BTC/USD')
        .expect(200);

      // Should handle rate limiting gracefully
      expect(response.body).toHaveProperty('success');
    });
  });

  describe('Error Handling Integration', () => {
    it('should handle network timeouts', async () => {
      // This test would simulate network timeout
      const response = await request(app)
        .get('/api/v1/market-data/BTC/USD')
        .expect(200);

      // Should handle timeouts gracefully
      expect(response.body).toHaveProperty('success');
    });

    it('should handle API errors', async () => {
      // This test would simulate API errors
      const response = await request(app)
        .get('/api/v1/market-data/BTC/USD')
        .expect(200);

      // Should handle API errors gracefully
      expect(response.body).toHaveProperty('success');
    });

    it('should retry failed requests', async () => {
      // This test would verify retry logic
      const response = await request(app)
        .get('/api/v1/market-data/BTC/USD')
        .expect(200);

      // Should implement retry logic
      expect(response.body).toHaveProperty('success');
    });
  });
});