| /* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */ |
| /* This Source Code Form is subject to the terms of the Mozilla Public |
| * License, v. 2.0. If a copy of the MPL was not distributed with this |
| * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| |
| |
| /** |
| File Name: 9.4-1.js |
| ECMA Section: 9.4 ToInteger |
| Description: 1. Call ToNumber on the input argument |
| 2. If Result(1) is NaN, return +0 |
| 3. If Result(1) is +0, -0, Infinity, or -Infinity, |
| return Result(1). |
| 4. Compute sign(Result(1)) * floor(abs(Result(1))). |
| 5. Return Result(4). |
| |
| To test ToInteger, this test uses new Date(value), |
| 15.9.3.7. The Date constructor sets the [[Value]] |
| property of the new object to TimeClip(value), which |
| uses the rules: |
| |
| TimeClip(time) |
| 1. If time is not finite, return NaN |
| 2. If abs(Result(1)) > 8.64e15, return NaN |
| 3. Return an implementation dependent choice of either |
| ToInteger(Result(2)) or ToInteger(Result(2)) + (+0) |
| (Adding a positive 0 converts -0 to +0). |
| |
| This tests ToInteger for values -8.64e15 > value > 8.64e15, |
| not including -0 and +0. |
| |
| For additional special cases (0, +0, Infinity, -Infinity, |
| and NaN, see 9.4-2.js). For value is String, see 9.4-3.js. |
| |
| Author: christine@netscape.com |
| Date: 10 july 1997 |
| |
| */ |
| var SECTION = "9.4-1"; |
| var VERSION = "ECMA_1"; |
| startTest(); |
| var TITLE = "ToInteger"; |
| |
| writeHeaderToLog( SECTION + " "+ TITLE); |
| |
| // some special cases |
| |
| new TestCase( SECTION, "td = new Date(Number.NaN); td.valueOf()", Number.NaN, eval("td = new Date(Number.NaN); td.valueOf()") ); |
| new TestCase( SECTION, "td = new Date(Infinity); td.valueOf()", Number.NaN, eval("td = new Date(Number.POSITIVE_INFINITY); td.valueOf()") ); |
| new TestCase( SECTION, "td = new Date(-Infinity); td.valueOf()", Number.NaN, eval("td = new Date(Number.NEGATIVE_INFINITY); td.valueOf()") ); |
| new TestCase( SECTION, "td = new Date(-0); td.valueOf()", -0, eval("td = new Date(-0); td.valueOf()" ) ); |
| new TestCase( SECTION, "td = new Date(0); td.valueOf()", 0, eval("td = new Date(0); td.valueOf()") ); |
| |
| // value is not an integer |
| |
| new TestCase( SECTION, "td = new Date(3.14159); td.valueOf()", 3, eval("td = new Date(3.14159); td.valueOf()") ); |
| new TestCase( SECTION, "td = new Date(Math.PI); td.valueOf()", 3, eval("td = new Date(Math.PI); td.valueOf()") ); |
| new TestCase( SECTION, "td = new Date(-Math.PI);td.valueOf()", -3, eval("td = new Date(-Math.PI);td.valueOf()") ); |
| new TestCase( SECTION, "td = new Date(3.14159e2); td.valueOf()", 314, eval("td = new Date(3.14159e2); td.valueOf()") ); |
| |
| new TestCase( SECTION, "td = new Date(.692147e1); td.valueOf()", 6, eval("td = new Date(.692147e1);td.valueOf()") ); |
| new TestCase( SECTION, "td = new Date(-.692147e1);td.valueOf()", -6, eval("td = new Date(-.692147e1);td.valueOf()") ); |
| |
| // value is not a number |
| |
| new TestCase( SECTION, "td = new Date(true); td.valueOf()", 1, eval("td = new Date(true); td.valueOf()" ) ); |
| new TestCase( SECTION, "td = new Date(false); td.valueOf()", 0, eval("td = new Date(false); td.valueOf()") ); |
| |
| new TestCase( SECTION, "td = new Date(new Number(Math.PI)); td.valueOf()", 3, eval("td = new Date(new Number(Math.PI)); td.valueOf()") ); |
| new TestCase( SECTION, "td = new Date(new Number(Math.PI)); td.valueOf()", 3, eval("td = new Date(new Number(Math.PI)); td.valueOf()") ); |
| |
| // edge cases |
| new TestCase( SECTION, "td = new Date(8.64e15); td.valueOf()", 8.64e15, eval("td = new Date(8.64e15); td.valueOf()") ); |
| new TestCase( SECTION, "td = new Date(-8.64e15); td.valueOf()", -8.64e15, eval("td = new Date(-8.64e15); td.valueOf()") ); |
| new TestCase( SECTION, "td = new Date(8.64e-15); td.valueOf()", 0, eval("td = new Date(8.64e-15); td.valueOf()") ); |
| new TestCase( SECTION, "td = new Date(-8.64e-15); td.valueOf()", 0, eval("td = new Date(-8.64e-15); td.valueOf()") ); |
| |
| test(); |