laplace-api/src/test/financial_fundamentals.test.ts

Client library for Laplace API for the US stock market and BIST (Istanbul stock market) fundamental financial data.

import { Logger } from 'winston';
import { LaplaceConfiguration } from '../utilities/configuration';
import { Client } from '../client/client';
import { FinancialFundamentalsClient, TopMoverDirection } from '../client/financial_fundamentals';
import { Region } from '../client/collections';
import './client_test_suite';

describe('FinancialFundamentals', () => {
  let client: Client;
  let stockClient: FinancialFundamentalsClient;

  beforeAll(() => {
    const config = (global as any).testSuite.config as LaplaceConfiguration;
    const logger: Logger = {
      info: jest.fn(),
      error: jest.fn(),
      warn: jest.fn(),
      debug: jest.fn(),
    } as unknown as Logger;

    stockClient = new FinancialFundamentalsClient(config, logger);
  });

  test('GetStockDividends', async () => {
    const resp = await stockClient.getStockDividends('TUPRS', Region.Tr);
    expect(resp).not.toBeEmpty();
  });

  test('GetStockStats', async () => {
    const resp = await stockClient.getStockStats(['TUPRS'], Region.Tr);
    expect(resp).not.toBeEmpty();
    expect(resp.length).toBe(1);
  

      var currentStockStats = resp[0];
      expect(currentStockStats).not.toBeEmpty();
      expect(currentStockStats.symbol).toBe('TUPRS');
      expect(currentStockStats.previousClose).toBeGreaterThan(0.0);
      expect(currentStockStats.marketCap).toBeGreaterThan(0.0);
      expect(currentStockStats.peRatio).not.toBe(0.0);
      expect(currentStockStats.pbRatio).not.toBe(0.0);
      expect(currentStockStats.yearLow).toBeGreaterThan(0.0);
      expect(currentStockStats.yearHigh).toBeGreaterThan(0.0);
      expect(typeof currentStockStats.weeklyReturn).toBe('number');;
      expect(typeof currentStockStats.monthlyReturn).toBe('number');
      expect(typeof currentStockStats['3MonthReturn']).toBe('number');
      expect(typeof currentStockStats.ytdReturn).toBe('number');
      expect(typeof currentStockStats.yearlyReturn).toBe('number');
      expect(typeof currentStockStats['3YearReturn']).toBe('number');
      expect(typeof currentStockStats['5YearReturn']).toBe('number');
      expect(currentStockStats.latestPrice).toBeGreaterThan(0.0);
      expect(typeof currentStockStats.dailyChange).toBe('number');
      expect(currentStockStats.dayLow).toBeGreaterThan(0.0);
      expect(currentStockStats.dayHigh).toBeGreaterThan(0.0);
      expect(currentStockStats.upperPriceLimit).toBeGreaterThan(0.0)
      expect(currentStockStats.lowerPriceLimit).toBeGreaterThan(0.0)
  });

  describe('GetTopMovers', () => {
    const region = Region.Tr;
    const page = 0;
    const pageSize = 20;
    
    async function testTopMovers(direction: TopMoverDirection, shouldBePositive: boolean) {
      const result = await stockClient.getTopMovers(region, page, pageSize, direction);
      
      expect(Array.isArray(result)).toBe(true);
      expect(result.length).toBeGreaterThan(0);
      
      result.forEach(mover => {
        expect(mover).toHaveProperty('symbol');
        expect(mover).toHaveProperty('change');
        expect(typeof mover.symbol).toBe('string');
        expect(typeof mover.change).toBe('number');
      });
      
      const directionCheck = result.every(mover => 
        shouldBePositive ? mover.change > 0 : mover.change < 0
      );
      expect(directionCheck).toBe(true);
      
      expect(result.length).toBeLessThanOrEqual(pageSize);
    }
    
    test('should return gainers data', async () => {
      await testTopMovers(TopMoverDirection.Gainers, true);
    });
    
    test('should return losers data', async () => {
      await testTopMovers(TopMoverDirection.Losers, false);
    });
  });
});