import { CurrentRateService } from '@ghostfolio/api/app/portfolio/current-rate.service'; import { ExchangeRateDataService } from '@ghostfolio/api/services/exchange-rate-data/exchange-rate-data.service'; import { parseDate } from '@ghostfolio/common/helper'; import Big from 'big.js'; import { CurrentRateServiceMock } from './current-rate.service.mock'; import { PortfolioCalculator } from './portfolio-calculator'; jest.mock('@ghostfolio/api/app/portfolio/current-rate.service', () => { return { // eslint-disable-next-line @typescript-eslint/naming-convention CurrentRateService: jest.fn().mockImplementation(() => { return CurrentRateServiceMock; }) }; }); describe('PortfolioCalculator', () => { let currentRateService: CurrentRateService; let exchangeRateDataService: ExchangeRateDataService; beforeEach(() => { currentRateService = new CurrentRateService(null, null); exchangeRateDataService = new ExchangeRateDataService( null, null, null, null ); }); describe('get current positions', () => { it.only('with BALN.SW buy', async () => { const portfolioCalculator = new PortfolioCalculator({ currentRateService, exchangeRateDataService, currency: 'CHF', orders: [ { currency: 'CHF', date: '2021-11-30', dataSource: 'YAHOO', fee: new Big(1.55), name: 'Bâloise Holding AG', quantity: new Big(2), symbol: 'BALN.SW', type: 'BUY', unitPrice: new Big(136.6) } ] }); portfolioCalculator.computeTransactionPoints(); const spy = jest .spyOn(Date, 'now') .mockImplementation(() => parseDate('2021-12-18').getTime()); const chartData = await portfolioCalculator.getChartData({ start: parseDate('2021-11-30') }); const currentPositions = await portfolioCalculator.getCurrentPositions( parseDate('2021-11-30') ); const investments = portfolioCalculator.getInvestments(); const investmentsByMonth = portfolioCalculator.getInvestmentsByGroup({ data: chartData, groupBy: 'month' }); spy.mockRestore(); expect(currentPositions).toEqual({ currentValue: new Big('297.8'), errors: [], grossPerformance: new Big('24.6'), grossPerformancePercentage: new Big('0.09004392386530014641'), grossPerformancePercentageWithCurrencyEffect: new Big( '0.09004392386530014641' ), grossPerformanceWithCurrencyEffect: new Big('24.6'), hasErrors: false, netPerformance: new Big('23.05'), netPerformancePercentage: new Big('0.08437042459736456808'), netPerformancePercentageWithCurrencyEffect: new Big( '0.08437042459736456808' ), netPerformanceWithCurrencyEffect: new Big('23.05'), positions: [ { averagePrice: new Big('136.6'), currency: 'CHF', dataSource: 'YAHOO', fee: new Big('1.55'), firstBuyDate: '2021-11-30', grossPerformance: new Big('24.6'), grossPerformancePercentage: new Big('0.09004392386530014641'), grossPerformancePercentageWithCurrencyEffect: new Big( '0.09004392386530014641' ), grossPerformanceWithCurrencyEffect: new Big('24.6'), investment: new Big('273.2'), investmentWithCurrencyEffect: new Big('273.2'), netPerformance: new Big('23.05'), netPerformancePercentage: new Big('0.08437042459736456808'), netPerformancePercentageWithCurrencyEffect: new Big( '0.08437042459736456808' ), netPerformanceWithCurrencyEffect: new Big('23.05'), marketPrice: 148.9, marketPriceInBaseCurrency: 148.9, quantity: new Big('2'), symbol: 'BALN.SW', timeWeightedInvestment: new Big('273.2'), timeWeightedInvestmentWithCurrencyEffect: new Big('273.2'), transactionCount: 1 } ], totalInvestment: new Big('273.2'), totalInvestmentWithCurrencyEffect: new Big('273.2') }); expect(investments).toEqual([ { date: '2021-11-30', investment: new Big('273.2') } ]); expect(investmentsByMonth).toEqual([ { date: '2021-11-01', investment: 273.2 }, { date: '2021-12-01', investment: 0 } ]); }); }); });