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test(fmt): handle missing group separator for 1000.1 in some locales (#6117)

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IgorM867 2024-10-23 14:57:58 +02:00 committed by GitHub
parent 5cd3b5d94f
commit 3f0ef9f502
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1 changed files with 37 additions and 6 deletions
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43
fmt/bytes_test.ts
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@ -4,10 +4,10 @@
import { format } from "./bytes.ts";
import { assertEquals, assertThrows } from "@std/assert";
import { stub } from "@std/testing/mock";
const parts = new Intl.NumberFormat().formatToParts(1000.1);
const parts = new Intl.NumberFormat().formatToParts(10000.1);
const decimal = parts.find(({ type }) => type === "decimal")!.value;
const group = parts.find(({ type }) => type === "group")!.value;
Deno.test("format() throws on invalid input", () => {
// deno-lint-ignore no-explicit-any
@ -76,10 +76,6 @@ Deno.test("format() handles locale option", () => {
assertEquals(format(0.4, { locale: true }), `0${decimal}4 B`);
assertEquals(format(1001, { locale: true }), "1 kB");
assertEquals(format(10.1, { locale: true }), `10${decimal}1 B`);
assertEquals(
format(1e30, { locale: true }),
`1${group}000${group}000 YB`,
);
assertEquals(format(-0.4, { locale: false }), "-0.4 B");
assertEquals(format(0.4, { locale: false }), "0.4 B");
@ -105,6 +101,41 @@ Deno.test("format() handles locale option", () => {
assertEquals(format(1e30, {}), "1000000 YB");
});
Deno.test("format() handles group separators", async (t) => {
const tests: { locale: string; expected: string }[] = [
{ locale: "en-US", expected: "1,000,000 YB" },
{ locale: "es-ES", expected: "1.000.000 YB" },
// narrow non-breaking space
{ locale: "fr-FR", expected: "1\u202f000\u202f000 YB" },
// non-breaking space
{ locale: "pl-PL", expected: "1\u00A0000\u00A0000 YB" },
// https://en.wikipedia.org/wiki/Indian_numbering_system
{ locale: "hi-IN", expected: "10,00,000 YB" },
{ locale: "gu-IN", expected: "10,00,000 YB" },
];
for (const { locale, expected } of tests) {
await t.step(locale, () => {
const toLocaleString = Number.prototype.toLocaleString;
using _ = stub(
Number.prototype,
"toLocaleString",
function (loc) {
return toLocaleString.call(this, loc ?? locale);
},
);
// explicitly supplying the locale
assertEquals(format(1e30, { locale }), expected);
// using the default locale (mocked with stub)
assertEquals(format(1e30, { locale: true }), expected);
});
}
});
Deno.test("format() handles signed option", () => {
assertEquals(format(42, { signed: true }), "+42 B");
assertEquals(format(-13, { signed: true }), "-13 B");