test262/test/built-ins/Date/coercion-order.js

// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.

/*---
esid: sec-date-year-month-date-hours-minutes-seconds-ms
description: Order of input coercion
info: |
  3. If NewTarget is not undefined, then
    a. Let y be ? ToNumber(year).
    b. Let m be ? ToNumber(month).
    c. If date is supplied, let dt be ? ToNumber(date); else let dt be 1.
    d. If hours is supplied, let h be ? ToNumber(hours); else let h be 0.
    e. If minutes is supplied, let min be ? ToNumber(minutes); else let min be 0.
    f. If seconds is supplied, let s be ? ToNumber(seconds); else let s be 0.
    g. If ms is supplied, let milli be ? ToNumber(ms); else let milli be 0.
    h. If y is not NaN and 0 ≤ ToInteger(y) ≤ 99, let yr be 1900+ToInteger(y); otherwise,
      let yr be y.
    i. Let finalDate be MakeDate(MakeDay(yr, m, dt), MakeTime(h, min, s, milli)).
    j. Let O be ? OrdinaryCreateFromConstructor(NewTarget, "%DatePrototype%", « [[DateValue]] »).
    k. Set O.[[DateValue]] to TimeClip(UTC(finalDate)).
    l. Return O.
---*/

var log = '';
var year = {
  toString: function() {
    log += 'year';
    return 0;
  }
};
var month = {
  toString: function() {
    log += 'month';
    return 0;
  }
};
var date = {
  toString: function() {
    log += 'date';
    return 1;
  }
};
var hours = {
  toString: function() {
    log += 'hours';
    return 0;
  }
};
var minutes = {
  toString: function() {
    log += 'minutes';
    return 0;
  }
};
var seconds = {
  toString: function() {
    log += 'seconds';
    return 0;
  }
};
var ms = {
  toString: function() {
    log += 'ms';
    return 0;
  }
};

new Date(year, month, date, hours, minutes, seconds, ms);

assert.sameValue(log, 'yearmonthdatehoursminutessecondsms');