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backend/src/modules/investments/instruments/stocks/application/stock.spec.ts
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feat!: persist T-Bank data and synchronize reads
Store account membership, portfolio, operations, forecasts and market sources in SQLite.
Coalesce scoped refreshes, fence connection revisions, preserve complete financial
snapshots and stabilize operation period state.

BREAKING CHANGE: investment reads return data/meta resource envelopes and locally
persisted snapshots; consumers must use the matching OpenAPI contract and explicit
synchronization endpoints.
2026-09-26 21:29:15 +03:00

71 lines
2.5 KiB
TypeScript

import { metrics } from './get-stock-company.use-case';
import { stockDividends } from './stock-income.service';
import { stockQuote } from './stock-market.service';
import { previousClose } from '../../application/instrument-market';
jest.mock('../../../../../prisma/prisma.service', () => ({
PrismaService: class {},
}));
const time = (value: string) => ({ seconds: String(Date.parse(value) / 1000) });
describe('stock financial projections', () => {
it('keeps raw public payouts when holdings are unavailable and omits cancelled events', () => {
const result = stockDividends(
[
{
dividendNet: { currency: 'rub', units: '32', nano: 880000000 },
recordDate: time('2026-10-13'),
paymentDate: time('2026-10-27'),
},
{ dividendType: 'Cancelled', recordDate: time('2026-10-14') },
],
null,
{ from: '2021-09-10', to: '2027-09-10', today: '2026-09-10' },
'source-time',
true,
);
expect(result.dividends).toEqual([
{
perShare: { currency: 'RUB', value: '32.88' },
recordDate: '2026-10-13',
paymentDate: '2026-10-27',
lastBuyDate: null,
timing: 'upcoming',
estimatedAmount: null,
},
]);
expect(result.estimateUnavailable).toBe(true);
expect(result.observedAt).toBe('source-time');
});
it('uses the last complete previous trading day', () => {
const candles = [
{ time: time('2026-09-09'), close: { units: '10' }, isComplete: true },
{ time: time('2026-09-10'), close: { units: '11' }, isComplete: false },
];
expect(previousClose(candles, '2026-09-10T18:00:00Z')).toEqual(candles[0]);
});
it('retains stock price precision and percent change without inventing unavailable fundamentals', () => {
expect(
stockQuote(
{
instrument: { currency: 'rub' },
price: { price: { units: '11', nano: 1 } },
candle: { close: { units: '10' } },
},
[],
'time',
),
).toMatchObject({
price: { currency: 'RUB', value: '11.000000001' },
change: { currency: 'RUB', value: '1.000000001' },
changePercent: '10',
});
expect(metrics(null, 'financial')).toEqual([]);
expect(
metrics(
{ peRatioTtm: 6, netIncomeTtm: 10, revenueTtm: 100, currency: 'rub' },
'financial',
).map((item) => item.key),
).toEqual(['peRatioTtm', 'netIncomeTtm']);
expect(metrics({ netIncomeTtm: 10 })).toEqual([]);
});
});