js/src/tests/ecma/String/15.5.4.4-3.js@6474c204b198 (annotated)
js/src/tests/ecma/String/15.5.4.4-3.js
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
| michael@0 | 1 | /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
| michael@0 | 2 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 3 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 4 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 5 | |
| michael@0 | 6 | |
| michael@0 | 7 | /** |
| michael@0 | 8 | File Name: 15.5.4.4-3.js |
| michael@0 | 9 | ECMA Section: 15.5.4.4 String.prototype.charAt(pos) |
| michael@0 | 10 | Description: Returns a string containing the character at position |
| michael@0 | 11 | pos in the string. If there is no character at that |
| michael@0 | 12 | string, the result is the empty string. The result is |
| michael@0 | 13 | a string value, not a String object. |
| michael@0 | 14 | |
| michael@0 | 15 | When the charAt method is called with one argument, |
| michael@0 | 16 | pos, the following steps are taken: |
| michael@0 | 17 | 1. Call ToString, with this value as its argument |
| michael@0 | 18 | 2. Call ToInteger pos |
| michael@0 | 19 | 3. Compute the number of characters in Result(1) |
| michael@0 | 20 | 4. If Result(2) is less than 0 is or not less than |
| michael@0 | 21 | Result(3), return the empty string |
| michael@0 | 22 | 5. Return a string of length 1 containing one character |
| michael@0 | 23 | from result (1), the character at position Result(2). |
| michael@0 | 24 | |
| michael@0 | 25 | Note that the charAt function is intentionally generic; |
| michael@0 | 26 | it does not require that its this value be a String |
| michael@0 | 27 | object. Therefore it can be transferred to other kinds |
| michael@0 | 28 | of objects for use as a method. |
| michael@0 | 29 | |
| michael@0 | 30 | This tests assiging charAt to a user-defined function. |
| michael@0 | 31 | |
| michael@0 | 32 | Author: christine@netscape.com |
| michael@0 | 33 | Date: 2 october 1997 |
| michael@0 | 34 | */ |
| michael@0 | 35 | var SECTION = "15.5.4.4-3"; |
| michael@0 | 36 | var VERSION = "ECMA_1"; |
| michael@0 | 37 | startTest(); |
| michael@0 | 38 | var TITLE = "String.prototype.charAt"; |
| michael@0 | 39 | |
| michael@0 | 40 | writeHeaderToLog( SECTION + " "+ TITLE); |
| michael@0 | 41 | |
| michael@0 | 42 | var foo = new MyObject('hello'); |
| michael@0 | 43 | |
| michael@0 | 44 | |
| michael@0 | 45 | new TestCase( SECTION, "var foo = new MyObject('hello'); ", "h", foo.charAt(0) ); |
| michael@0 | 46 | new TestCase( SECTION, "var foo = new MyObject('hello'); ", "e", foo.charAt(1) ); |
| michael@0 | 47 | new TestCase( SECTION, "var foo = new MyObject('hello'); ", "l", foo.charAt(2) ); |
| michael@0 | 48 | new TestCase( SECTION, "var foo = new MyObject('hello'); ", "l", foo.charAt(3) ); |
| michael@0 | 49 | new TestCase( SECTION, "var foo = new MyObject('hello'); ", "o", foo.charAt(4) ); |
| michael@0 | 50 | new TestCase( SECTION, "var foo = new MyObject('hello'); ", "", foo.charAt(-1) ); |
| michael@0 | 51 | new TestCase( SECTION, "var foo = new MyObject('hello'); ", "", foo.charAt(5) ); |
| michael@0 | 52 | |
| michael@0 | 53 | var boo = new MyObject(true); |
| michael@0 | 54 | |
| michael@0 | 55 | new TestCase( SECTION, "var boo = new MyObject(true); ", "t", boo.charAt(0) ); |
| michael@0 | 56 | new TestCase( SECTION, "var boo = new MyObject(true); ", "r", boo.charAt(1) ); |
| michael@0 | 57 | new TestCase( SECTION, "var boo = new MyObject(true); ", "u", boo.charAt(2) ); |
| michael@0 | 58 | new TestCase( SECTION, "var boo = new MyObject(true); ", "e", boo.charAt(3) ); |
| michael@0 | 59 | |
| michael@0 | 60 | var noo = new MyObject( Math.PI ); |
| michael@0 | 61 | |
| michael@0 | 62 | new TestCase( SECTION, "var noo = new MyObject(Math.PI); ", "3", noo.charAt(0) ); |
| michael@0 | 63 | new TestCase( SECTION, "var noo = new MyObject(Math.PI); ", ".", noo.charAt(1) ); |
| michael@0 | 64 | new TestCase( SECTION, "var noo = new MyObject(Math.PI); ", "1", noo.charAt(2) ); |
| michael@0 | 65 | new TestCase( SECTION, "var noo = new MyObject(Math.PI); ", "4", noo.charAt(3) ); |
| michael@0 | 66 | new TestCase( SECTION, "var noo = new MyObject(Math.PI); ", "1", noo.charAt(4) ); |
| michael@0 | 67 | new TestCase( SECTION, "var noo = new MyObject(Math.PI); ", "5", noo.charAt(5) ); |
| michael@0 | 68 | new TestCase( SECTION, "var noo = new MyObject(Math.PI); ", "9", noo.charAt(6) ); |
| michael@0 | 69 | |
| michael@0 | 70 | test(); |
| michael@0 | 71 | |
| michael@0 | 72 | function MyObject (v) { |
| michael@0 | 73 | this.value = v; |
| michael@0 | 74 | this.toString = new Function( "return this.value +'';" ); |
| michael@0 | 75 | this.valueOf = new Function( "return this.value" ); |
| michael@0 | 76 | this.charAt = String.prototype.charAt; |
| michael@0 | 77 | } |
| michael@0 | 78 |
