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20 lines
717 B
TypeScript
20 lines
717 B
TypeScript
import { describe, it, expect } from "vitest";
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import { splitGrossCents } from "@/src/modules/zahlungen/lib/invoice-tax";
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describe("splitGrossCents", () => {
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it("rechnet 19 % aus einem Endpreis heraus", () => {
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// 29,00 € brutto = 24,37 € netto + 4,63 € USt
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expect(splitGrossCents(2900, 19)).toEqual({ netCents: 2437, taxCents: 463 });
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});
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it("rechnet 7 % heraus", () => {
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expect(splitGrossCents(2900, 7)).toEqual({ netCents: 2710, taxCents: 190 });
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});
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it("ergibt immer exakt den Bruttobetrag", () => {
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for (const gross of [1, 99, 1250, 1999, 25000]) {
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const { netCents, taxCents } = splitGrossCents(gross, 19);
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expect(netCents + taxCents).toBe(gross);
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}
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});
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});
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