First Commit. Duplicate bunext-sqlite preset

src/utils/money.test.ts

@@ -0,0 +1,42 @@
+import { expect, test } from "bun:test";
+import {
+    formatNaira,
+    nairaToKobo,
+    sumInvoiceItemsKobo,
+} from "./money";
+
+test("formatNaira formats kobo amounts", () => {
+    expect(formatNaira(150050)).toBe("₦1,500.50");
+    expect(formatNaira(100)).toBe("₦1.00");
+    expect(formatNaira(0)).toBe("₦0.00");
+    expect(formatNaira(500000000)).toBe("₦5,000,000.00");
+    expect(formatNaira(1)).toBe("₦0.01");
+    expect(formatNaira("250000")).toBe("₦2,500.00");
+});
+
+test("formatNaira handles strings, undefined and negative", () => {
+    expect(formatNaira(undefined)).toBe("₦0.00");
+    expect(formatNaira(null)).toBe("₦0.00");
+    expect(formatNaira(1000)).toBe("₦10.00");
+    expect(formatNaira(-5050)).toBe("-₦50.50");
+});
+
+test("nairaToKobo parses naira strings", () => {
+    expect(nairaToKobo("₦1,500.50")).toBe(150050);
+    expect(nairaToKobo("1500")).toBe(150000);
+    expect(nairaToKobo("1,234.56")).toBe(123456);
+    expect(nairaToKobo(undefined)).toBe(0);
+    expect(nairaToKobo("")).toBe(0);
+    expect(nairaToKobo("abc")).toBe(0);
+});
+
+test("sumInvoiceItemsKobo totals line items", () => {
+    const items = [
+        { quantity: 2, unit_price_kobo: 5000 }, // ₦50.00 x2
+        { quantity: 1, unit_price_kobo: 150000 }, // ₦1,500.00
+        { quantity: "", unit_price_kobo: "" },
+    ];
+
+    expect(sumInvoiceItemsKobo(items)).toBe(160000);
+    expect(sumInvoiceItemsKobo([])).toBe(0);
+});