tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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constructor-trailingZeroDisplay.js (1135B)

      1 // Copyright 2021 the V8 project authors. All rights reserved.
      2 // This code is governed by the BSD license found in the LICENSE file.
      3 /*---
      4 esid: sec-initializenumberformat
      5 description: Checks handling of the trailingZeroDisplay option to the NumberFormat constructor.
      6 includes: [compareArray.js]
      7 features: [Intl.NumberFormat-v3]
      8 ---*/
      9 
     10 const values = [
     11  [undefined, "auto"],
     12  ["auto", "auto"],
     13  ["stripIfInteger", "stripIfInteger"],
     14  [{toString: function() { return "stripIfInteger"; }}, "stripIfInteger"],
     15 ];
     16 
     17 for (const [value, expected] of values) {
     18  const callOrder = [];
     19  const nf = new Intl.NumberFormat([], {
     20    get roundingIncrement() {
     21      callOrder.push("roundingIncrement");
     22      return 1;
     23    },
     24    get trailingZeroDisplay() {
     25      callOrder.push("trailingZeroDisplay");
     26      return value;
     27    }
     28  });
     29  const resolvedOptions = nf.resolvedOptions();
     30  assert("trailingZeroDisplay" in resolvedOptions, "has property for value " + value);
     31  assert.sameValue(resolvedOptions.trailingZeroDisplay, expected);
     32 
     33  assert.compareArray(callOrder, ["roundingIncrement", "trailingZeroDisplay"]);
     34 }
     35 
     36 reportCompare(0, 0);