Validation for prices and objection

src/utils/unicode-digits.spec.ts

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+import {
+  normalizeMoneyAmountString,
+  normalizeUnicodeDigitsDeep,
+  normalizeUnicodeDigitsToEnglish,
+  parseMoneyAmountToman,
+} from "./unicode-digits";
+
+describe("unicode-digits", () => {
+  it("converts Persian digits to ASCII", () => {
+    expect(normalizeUnicodeDigitsToEnglish("۱۲۳۴۵۶۷۸۹۰")).toBe("1234567890");
+  });
+
+  it("normalizes nested request bodies", () => {
+    expect(
+      normalizeUnicodeDigitsDeep({
+        partPrice: "۵۰۰۰۰۰۰",
+        nested: [{ total: "۱۰۰" }],
+      }),
+    ).toEqual({
+      partPrice: "5000000",
+      nested: [{ total: "100" }],
+    });
+  });
+
+  it("strips grouping separators for money strings", () => {
+    expect(normalizeMoneyAmountString("۵,۰۰۰,۰۰۰")).toBe("5000000");
+  });
+
+  it("parses integer Toman amount strings", () => {
+    expect(parseMoneyAmountToman("۵۳۰۰۰۰۰")).toBe(5300000);
+    expect(parseMoneyAmountToman("1000")).toBe(1000);
+    expect(parseMoneyAmountToman("12.5")).toBeNull();
+  });
+});