402: Replace currency-digits.js Intl.NumberFormat test (#4285)

ISO 4217 no longer normative for currency minor digits. New test verifies that
currency data (from whatever source) is used by verifying that `maximumFractionDigits` and `minimumFractionDigits`
are identical. See tc39/ecma402#922

test/intl402/NumberFormat/currency-digits.js

@@ -1,189 +1,23 @@
-// Copyright 2011-2012 Norbert Lindenberg. All rights reserved.
-// Copyright 2012 Mozilla Corporation. All rights reserved.
+// Copyright 2024 Igalia S.L. All rights reserved.
 // This code is governed by the BSD license found in the LICENSE file.
 
 /*---
-es5id: 11.1.1_20_c
+esid: sec-intl.numberformat
 description: >
-    Tests that the number of fractional digits is determined correctly
-    for currencies.
-author: Norbert Lindenberg
+    Tests that data for the number of fractional digits when formatting currency is used.
+info: |
+    15.1.1 Intl.NumberFormat ([ locales [ , options ]])
+
+    19. If style is "currency" and "notation" is "standard", then
+      a. Let currency be numberFormat.[[Currency]].
+      b. Let cDigits be CurrencyDigits(currency).
+      c. Let mnfdDefault be cDigits.
+      d. Let mxfdDefault be cDigits.
+author: Ben Allen
 ---*/
 
-// data from https://www.currency-iso.org/dam/downloads/lists/list_one.xml, 2017-09-22
-var currencyDigits = {
-    AED: 2,
-    AFN: 2,
-    ALL: 2,
-    AMD: 2,
-    ANG: 2,
-    AOA: 2,
-    ARS: 2,
-    AUD: 2,
-    AWG: 2,
-    AZN: 2,
-    BAM: 2,
-    BBD: 2,
-    BDT: 2,
-    BGN: 2,
-    BHD: 3,
-    BIF: 0,
-    BMD: 2,
-    BND: 2,
-    BOB: 2,
-    BOV: 2,
-    BRL: 2,
-    BSD: 2,
-    BTN: 2,
-    BWP: 2,
-    BYN: 2,
-    BZD: 2,
-    CAD: 2,
-    CDF: 2,
-    CHE: 2,
-    CHF: 2,
-    CHW: 2,
-    CLF: 4,
-    CLP: 0,
-    CNY: 2,
-    COP: 2,
-    COU: 2,
-    CRC: 2,
-    CUC: 2,
-    CUP: 2,
-    CVE: 2,
-    CZK: 2,
-    DJF: 0,
-    DKK: 2,
-    DOP: 2,
-    DZD: 2,
-    EGP: 2,
-    ERN: 2,
-    ETB: 2,
-    EUR: 2,
-    FJD: 2,
-    FKP: 2,
-    GBP: 2,
-    GEL: 2,
-    GHS: 2,
-    GIP: 2,
-    GMD: 2,
-    GNF: 0,
-    GTQ: 2,
-    GYD: 2,
-    HKD: 2,
-    HNL: 2,
-    HRK: 2,
-    HTG: 2,
-    HUF: 2,
-    IDR: 2,
-    ILS: 2,
-    INR: 2,
-    IQD: 3,
-    IRR: 2,
-    ISK: 0,
-    JMD: 2,
-    JOD: 3,
-    JPY: 0,
-    KES: 2,
-    KGS: 2,
-    KHR: 2,
-    KMF: 0,
-    KPW: 2,
-    KRW: 0,
-    KWD: 3,
-    KYD: 2,
-    KZT: 2,
-    LAK: 2,
-    LBP: 2,
-    LKR: 2,
-    LRD: 2,
-    LSL: 2,
-    LYD: 3,
-    MAD: 2,
-    MDL: 2,
-    MGA: 2,
-    MKD: 2,
-    MMK: 2,
-    MNT: 2,
-    MOP: 2,
-    MRO: 2,
-    MUR: 2,
-    MVR: 2,
-    MWK: 2,
-    MXN: 2,
-    MXV: 2,
-    MYR: 2,
-    MZN: 2,
-    NAD: 2,
-    NGN: 2,
-    NIO: 2,
-    NOK: 2,
-    NPR: 2,
-    NZD: 2,
-    OMR: 3,
-    PAB: 2,
-    PEN: 2,
-    PGK: 2,
-    PHP: 2,
-    PKR: 2,
-    PLN: 2,
-    PYG: 0,
-    QAR: 2,
-    RON: 2,
-    RSD: 2,
-    RUB: 2,
-    RWF: 0,
-    SAR: 2,
-    SBD: 2,
-    SCR: 2,
-    SDG: 2,
-    SEK: 2,
-    SGD: 2,
-    SHP: 2,
-    SLL: 2,
-    SOS: 2,
-    SRD: 2,
-    SSP: 2,
-    STD: 2,
-    SVC: 2,
-    SYP: 2,
-    SZL: 2,
-    THB: 2,
-    TJS: 2,
-    TMT: 2,
-    TND: 3,
-    TOP: 2,
-    TRY: 2,
-    TTD: 2,
-    TWD: 2,
-    TZS: 2,
-    UAH: 2,
-    UGX: 0,
-    USD: 2,
-    USN: 2,
-    UYI: 0,
-    UYU: 2,
-    UZS: 2,
-    VEF: 2,
-    VND: 0,
-    VUV: 0,
-    WST: 2,
-    XAF: 0,
-    XCD: 2,
-    XOF: 0,
-    XPF: 0,
-    YER: 2,
-    ZAR: 2,
-    ZMW: 2,
-    ZWL: 2,
-};
+const nf = Intl.NumberFormat([], {style: "currency", currency: "USD"});
+const max = nf.resolvedOptions().maximumFractionDigits;
+const min = nf.resolvedOptions().minimumFractionDigits;
 
-Object.getOwnPropertyNames(currencyDigits).forEach(function (currency) {
-    var digits = currencyDigits[currency];
-    var format = Intl.NumberFormat([], {style: "currency", currency: currency});
-    var min = format.resolvedOptions().minimumFractionDigits;
-    var max = format.resolvedOptions().maximumFractionDigits;
-    assert.sameValue(min, digits, "Didn't get correct minimumFractionDigits for currency " + currency + ".");
-    assert.sameValue(max, digits, "Didn't get correct maximumFractionDigits for currency " + currency + ".");
-});
+assert.sameValue(min, max, "Currency data not used; maximumFractionDigits should match minimumFractionDigits");