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// 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.setmonth
description: Order of coercion of provided argument vs NaN check
info: |
1. Let t be ? thisTimeValue(this value).
2. Let m be ? ToNumber(month).
3. If date is present, let dt be ? ToNumber(date).
4. If t is NaN, return NaN.
5. Set t to LocalTime(t).
6. If date is not present, let dt be DateFromTime(t).
7. Let newDate be MakeDate(MakeDay(YearFromTime(t), m, dt), TimeWithinDay(t)).
8. Let u be TimeClip(UTC(newDate)).
9. Set the [[DateValue]] internal slot of this Date object to u.
10. Return u.
includes: [compareArray.js]
---*/
var date = new Date(NaN);
var effects = [];
var argMonth = {
valueOf: function() {
effects.push('valueOf month');
return 0;
}
};
var argDate = {
valueOf: function() {
effects.push('valueOf date');
return 0;
}
};
var returnValue = date.setMonth(argMonth, argDate);
var expectedEffects = ['valueOf month', 'valueOf date'];
assert.compareArray(effects, expectedEffects);
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);
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