formatRangeToParts-approximately-sign-compact.js

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// |reftest| skip-if(!this.hasOwnProperty("Intl"))

if (typeof getAvailableLocalesOf === "undefined") {

  var getAvailableLocalesOf = SpecialPowers.Cu.getJSTestingFunctions().getAvailableLocalesOf;

const numbers = [

  0, 1, 2, 5, 10, 100, 1000, 10_000, 100_000, 1_000_000,

  0.1, 0.2, 0.5, 1.5,

  -0, -1, -2, -5,

  Infinity, -Infinity,

];

const options = {notation: "compact"};

// List of known approximately sign in CLDR 40.

const approximatelySigns = [

  "~", "∼", "≈", "≃", "ca.", "約", "dáàṣì", "dáàshì",

];

// Iterate over all locales and ensure we find exactly one approximately sign.

for (let locale of getAvailableLocalesOf("NumberFormat").sort()) {

  let nf = new Intl.NumberFormat(locale, options);

  for (let number of numbers) {

    let parts = nf.formatRangeToParts(number, number);

    let approx = parts.filter(part => part.type === "approximatelySign");

    assertEq(approx.length, 1);

    assertEq(approximatelySigns.some(approxSign => approx[0].value.includes(approxSign)), true);

if (typeof reportCompare === "function")

  reportCompare(true, true);