// Copyright (C) 2021 Kevin Gibbons. All rights reserved. // This code is governed by the BSD license found in the LICENSE file. /*--- esid: sec-date.prototype.setmilliseconds description: Order of coercion of provided argument vs NaN check info: | 1. Let t be ? thisTimeValue(this value). 2. Set ms to ? ToNumber(ms). 3. If t is NaN, return NaN. 4. Set t to LocalTime(t). 5. Let time be MakeTime(HourFromTime(t), MinFromTime(t), SecFromTime(t), ms). 6. Let u be TimeClip(UTC(MakeDate(Day(t), time))). 7. Set the [[DateValue]] internal slot of this Date object to u. 8. Return u. ---*/ var date = new Date(NaN); var callCount = 0; var arg = { valueOf: function() { callCount += 1; return 0; } }; var returnValue = date.setMilliseconds(arg); assert.sameValue(callCount, 1, 'ToNumber invoked exactly once'); assert.sameValue(returnValue, NaN, 'argument is ignored when `this` is an invalid date'); assert.sameValue(date.getTime(), NaN, 'argument is ignored when `this` is an invalid date'); reportCompare(0, 0);