| // Copyright 2021 the V8 project authors. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| /*--- |
| esid: sec-initializenumberformat |
| description: Checks handling of the trailingZeroDisplay option to the NumberFormat constructor. |
| includes: [compareArray.js] |
| features: [Intl.NumberFormat-v3] |
| ---*/ |
| |
| const values = [ |
| [undefined, "auto"], |
| ["auto", "auto"], |
| ["stripIfInteger", "stripIfInteger"], |
| [{toString: function() { return "stripIfInteger"; }}, "stripIfInteger"], |
| ]; |
| |
| for (const [value, expected] of values) { |
| const callOrder = []; |
| const nf = new Intl.NumberFormat([], { |
| get roundingIncrement() { |
| callOrder.push("roundingIncrement"); |
| return 1; |
| }, |
| get trailingZeroDisplay() { |
| callOrder.push("trailingZeroDisplay"); |
| return value; |
| } |
| }); |
| const resolvedOptions = nf.resolvedOptions(); |
| assert("trailingZeroDisplay" in resolvedOptions, "has property for value " + value); |
| assert.sameValue(resolvedOptions.trailingZeroDisplay, expected); |
| |
| assert.compareArray(callOrder, ["roundingIncrement", "trailingZeroDisplay"]); |
| } |