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add further tests for portfolio-calculator with one transaction

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This commit is contained in:
Valentin Zickner 2021-07-27 20:49:04 +02:00 committed by Thomas
parent 136563c949
commit 03ca5d7663
1 changed files with 74 additions and 1 deletions
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75
apps/api/src/app/core/portfolio-calculator.spec.ts
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@ -61,6 +61,9 @@ function mockGetValue(symbol: string, date: Date) {
if (dateEqual(parse('2021-07-26', 'yyyy-MM-dd', new Date()), date)) {
return { marketPrice: 657.62 };
}
if (dateEqual(parse('2021-01-02', 'yyyy-MM-dd', new Date()), date)) {
return { marketPrice: 666.66 };
}
return { marketPrice: 0 };
} else {
return { marketPrice: 0 };
@ -615,7 +618,7 @@ describe('PortfolioCalculator', () => {
});
describe('get current positions', () => {
it('with single TSLA', async () => {
it('with single TSLA and early start', async () => {
const portfolioCalculator = new PortfolioCalculator(
currentRateService,
Currency.USD
@ -650,6 +653,76 @@ describe('PortfolioCalculator', () => {
});
});
it('with single TSLA and buy day start', async () => {
const portfolioCalculator = new PortfolioCalculator(
currentRateService,
Currency.USD
);
portfolioCalculator.setTransactionPoints(orderTslaTransactionPoint);
const spy = jest
.spyOn(Date, 'now')
.mockImplementation(() => new Date(Date.UTC(2021, 6, 26)).getTime()); // 2021-07-26
const currentPositions = await portfolioCalculator.getCurrentPositions(
parse('2021-01-01', 'yyyy-MM-dd', new Date())
);
spy.mockRestore();
expect(currentPositions).toEqual({
hasErrors: false,
positions: [
{
averagePrice: new Big('719.46'),
currency: 'USD',
firstBuyDate: '2021-01-01',
grossPerformance: new Big('-61.84'), // 657.62-719.46=-61.84
grossPerformancePercentage: new Big('-0.08595335390431712673'), // (657.62-719.46)/719.46=-0.085953353904317
investment: new Big('719.46'),
marketPrice: 657.62,
name: 'Tesla, Inc.',
quantity: new Big('1'),
symbol: 'TSLA',
transactionCount: 1
}
]
});
});
it('with single TSLA and late start', async () => {
const portfolioCalculator = new PortfolioCalculator(
currentRateService,
Currency.USD
);
portfolioCalculator.setTransactionPoints(orderTslaTransactionPoint);
const spy = jest
.spyOn(Date, 'now')
.mockImplementation(() => new Date(Date.UTC(2021, 6, 26)).getTime()); // 2021-07-26
const currentPositions = await portfolioCalculator.getCurrentPositions(
parse('2021-01-02', 'yyyy-MM-dd', new Date())
);
spy.mockRestore();
expect(currentPositions).toEqual({
hasErrors: false,
positions: [
{
averagePrice: new Big('719.46'),
currency: 'USD',
firstBuyDate: '2021-01-01',
grossPerformance: new Big('-9.04'), // 657.62-666.66=-9.04
grossPerformancePercentage: new Big('-0.01356013560135601356'), // 657.62/666.66-1=-0.013560136
investment: new Big('719.46'),
marketPrice: 657.62,
name: 'Tesla, Inc.',
quantity: new Big('1'),
symbol: 'TSLA',
transactionCount: 1
}
]
});
});
it('with VTI only', async () => {
const portfolioCalculator = new PortfolioCalculator(
currentRateService,