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// |reftest| skip-if(!this.hasOwnProperty('Intl'))
const tests = {
"en": {
long: {
"USD": "US Dollar",
"EUR": "Euro",
"FRF": "French Franc",
"CNY": "Chinese Yuan",
"XAU": "Gold",
},
short: {
"USD": "$",
"EUR": "€",
"FRF": "FRF",
"CNY": "CN¥",
"XAU": "XAU",
},
narrow: {
"CNY": "¥",
},
},
"de": {
long: {
"USD": "US-Dollar",
"EUR": "Euro",
"FRF": "Französischer Franc",
"CNY": "Renminbi Yuan",
"XAU": "Unze Gold",
},
short: {
"USD": "$",
"EUR": "€",
"FRF": "FRF",
"CNY": "CN¥",
"XAU": "XAU",
},
narrow: {
"CNY": "¥",
},
},
"fr": {
long: {
"USD": "dollar des États-Unis",
"EUR": "euro",
"FRF": "franc français",
"CNY": "yuan renminbi chinois",
"XAU": "or",
},
short: {
"USD": "$US",
"EUR": "€",
"FRF": "F",
"CNY": "CNY",
"XAU": "XAU",
},
narrow: {
"USD": "$",
"CNY": "¥",
},
},
"zh": {
long: {
"USD": "美元",
"EUR": "欧元",
"FRF": "法国法郎",
"CNY": "人民币",
"XAU": "黄金",
},
short: {
"USD": "US$",
"EUR": "€",
"FRF": "FRF",
"CNY": "¥",
"XAU": "XAU",
},
narrow: {
"USD": "$",
},
},
};
for (let [locale, localeTests] of Object.entries(tests)) {
for (let [style, styleTests] of Object.entries(localeTests)) {
let dn = new Intl.DisplayNames(locale, {type: "currency", style});
let resolved = dn.resolvedOptions();
assertEq(resolved.locale, locale);
assertEq(resolved.style, style);
assertEq(resolved.type, "currency");
assertEq(resolved.fallback, "code");
let inheritedTests = {...localeTests.long, ...localeTests.short, ...localeTests.narrow};
for (let [currency, expected] of Object.entries({...inheritedTests, ...styleTests})) {
assertEq(dn.of(currency), expected);
// Also works with objects.
assertEq(dn.of(Object(currency)), expected);
}
}
}
{
let dn = new Intl.DisplayNames("en", {type: "currency"});
// Performs ToString on the input and then validates the stringified result.
assertThrowsInstanceOf(() => dn.of(), RangeError);
assertThrowsInstanceOf(() => dn.of(null), RangeError);
assertThrowsInstanceOf(() => dn.of(Symbol()), TypeError);
assertThrowsInstanceOf(() => dn.of(0), RangeError);
// Throws an error if |code| isn't a well-formed currency code.
assertThrowsInstanceOf(() => dn.of("us"), RangeError);
assertThrowsInstanceOf(() => dn.of("euro"), RangeError);
assertThrowsInstanceOf(() => dn.of("€uro"), RangeError);
}
// Test fallback behaviour.
{
let dn1 = new Intl.DisplayNames("en", {type: "currency"});
let dn2 = new Intl.DisplayNames("en", {type: "currency", fallback: "code"});
let dn3 = new Intl.DisplayNames("en", {type: "currency", fallback: "none"});
assertEq(dn1.resolvedOptions().fallback, "code");
assertEq(dn2.resolvedOptions().fallback, "code");
assertEq(dn3.resolvedOptions().fallback, "none");
// "AAA" is not a registered currency code.
assertEq(dn1.of("AAA"), "AAA");
assertEq(dn2.of("AAA"), "AAA");
assertEq(dn3.of("AAA"), undefined);
// The returned fallback is in canonical case.
assertEq(dn1.of("aaa"), "AAA");
assertEq(dn2.of("aaa"), "AAA");
assertEq(dn3.of("aaa"), undefined);
}
// Test when case isn't canonical.
{
let dn = new Intl.DisplayNames("en", {type: "currency", fallback: "none"});
assertEq(dn.of("USD"), "US Dollar");
assertEq(dn.of("usd"), "US Dollar");
}
if (typeof reportCompare === "function")
reportCompare(true, true);