fix: round money to currency minor units without negative zero (WealthLedger/frontend#118) (#119)

2026-10-28 08:45:55 +03:00
parent 431559be0f
commit 1d4990491f
4 changed files with 47 additions and 18 deletions
@@ -56,6 +56,16 @@ describe("shared display helpers", () => {
 		)).toBe("0,00 ₽");
 	});

+	it("rounds to the currency's minor units and drops the sign of a rounded zero", () => {
+		const rounded = { withRoundedCents: true };
+		expect(formatMoney({ currency: "RUB", value: "-0.004" }, rounded)).toBe("0,00 ₽");
+		expect(formatMoney({ currency: "RUB", value: "-0.005" }, rounded)).toBe("-0,01 ₽");
+		expect(formatMoney({ currency: "RUB", value: "999.995" }, rounded)).toBe("1 000,00 ₽");
+		expect(formatMoney({ currency: "JPY", value: "1500.5" }, rounded)).toBe("1 501 JPY");
+		expect(formatMoney({ currency: "KWD", value: "1.2345" }, rounded)).toBe("1,235 KWD");
+		expect(formatMoney({ currency: "ZZZ", value: "1.234" }, rounded)).toBe("1,23 ZZZ");
+	});
+
 	it("builds the brand logo url from an upstream file name", () => {
 		expect(instrumentLogoUrl("sber3.png")).toBe(
 			"https://invest-brands.cdn-tinkoff.ru/sber3x160.png",