96 lines
2.8 KiB
TypeScript
96 lines
2.8 KiB
TypeScript
import { describe, expect, it } from 'vitest'
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import {
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debtSeries,
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debtTotal,
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installmentLoad,
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monthEnd,
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monthIndex,
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monthName,
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remainingAfter,
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} from './debt'
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// Kaynak belgedeki 8 taksit (paidCount Kasım 2026 itibarıyla → ilk ay = Kasım − paid + 1)
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const nov = monthIndex('2026-11')!
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const plans = (
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[
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[271_761, 7, 5],
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[33_324, 9, 5],
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[11_945, 7, 5],
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[12_717, 7, 4],
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[17_067, 7, 3],
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[7_428, 7, 3],
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[18_202, 7, 2],
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[58_738, 3, 2],
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] as const
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).map(([monthly_amount, total_count, paid]) => ({
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monthly_amount,
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total_count,
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first_month: monthName(nov - paid + 1),
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}))
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describe('debt (backend ile aynı, kabul rakamları)', () => {
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it('totals', () => {
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expect(
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debtTotal({
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kmh: 0,
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positive_balance: 236_311,
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card_balance: 6_671_590,
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remaining_installments: 1_417_769,
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}),
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).toBe(7_853_048)
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expect(
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debtTotal({
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kmh: 3_926_444,
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positive_balance: 0,
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card_balance: 2_994_854,
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remaining_installments: 986_587,
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}),
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).toBe(7_907_885)
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})
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it('installment loads and remaining', () => {
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const loads = ['2026-11', '2026-12', '2027-01', '2027-02', '2027-03', '2027-04'].map((m) =>
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installmentLoad(plans, monthIndex(m)!),
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)
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expect(loads).toEqual([431_182, 431_182, 372_444, 88_738, 76_021, 18_202])
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expect(remainingAfter(plans, monthIndex('2026-10')!)).toBe(1_417_769)
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expect(remainingAfter(plans, nov)).toBe(986_587)
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})
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it('months', () => {
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expect(monthName(monthIndex('2026-12')! + 1)).toBe('2027-01')
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expect(monthIndex('2026-13')).toBeNull()
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expect(monthEnd('2026-11')).toBe('2026-11-30')
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expect(monthEnd('2028-02')).toBe('2028-02-29')
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})
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it('chart series: actual + target from the first snapshot', () => {
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const s = debtSeries(
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[
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{ date: '2026-11-13', total: 7_907_885 },
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{ date: '2026-10-31', total: 7_853_048 },
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],
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[{ month: '2026-11', closing_target: 6_699_500 }],
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)
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expect(s.map((p) => [p.date, p.actual, p.target])).toEqual([
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['2026-10-31', 7_853_048, 7_853_048],
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['2026-11-13', 7_907_885, undefined],
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['2026-11-30', undefined, 6_699_500],
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])
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})
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})
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describe('plan integration', () => {
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it('finds the installments expense item by name', async () => {
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const { findInstallmentItem } = await import('./debt')
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const items = [
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{ kind: 'income', name: 'Taksitler' },
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{ kind: 'expense', name: 'Kira' },
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{ kind: 'expense', name: ' TAKSİTLER ' },
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]
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expect(findInstallmentItem(items)?.name).toBe(' TAKSİTLER ')
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expect(findInstallmentItem([{ kind: 'expense', name: 'Taksit' }])).toBeTruthy()
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expect(findInstallmentItem([{ kind: 'expense', name: 'Taksitli alışveriş' }])).toBeUndefined()
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})
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})
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