The Tor Browser: js/src/tests/ecma/String/15.5.4.9-1.js@6474c204b198 (annotated)

js/src/tests/ecma/String/15.5.4.9-1.js@6474c204b198 (annotated)

js/src/tests/ecma/String/15.5.4.9-1.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.

 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 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:          15.5.4.9-1.js
    ECMA Section:       15.5.4.9 String.prototype.substring( start )
    Description:
 .5.4.9 String.prototype.substring(start)
    Returns a substring of the result of converting this object to a string,
    starting from character position start and running to the end of the
    string. The result is a string value, not a String object.
    If the argument is NaN or negative, it is replaced with zero; if the
    argument is larger than the length of the string, it is replaced with the
    length of the string.
    When the substring method is called with one argument start, the following
    steps are taken:
 .Call ToString, giving it the this value as its argument.
 .Call ToInteger(start).
 .Compute the number of characters in Result(1).
 .Compute min(max(Result(2), 0), Result(3)).
 .Return a string whose length is the difference between Result(3) and Result(4),
    containing characters from Result(1), namely the characters with indices Result(4)
    through Result(3)1, in ascending order.
    Author:             christine@netscape.com
    Date:               12 november 1997
 */
 var SECTION = "15.5.4.9-1";
 var VERSION = "ECMA_1";
 startTest();
 var TITLE   = "String.prototype.substring( start )";
 writeHeaderToLog( SECTION + " "+ TITLE);
 new TestCase( SECTION,  "String.prototype.substring.length",        2,          String.prototype.substring.length );
 new TestCase( SECTION,  "delete String.prototype.substring.length", false,      delete String.prototype.substring.length );
 new TestCase( SECTION,  "delete String.prototype.substring.length; String.prototype.substring.length", 2,      eval("delete String.prototype.substring.length; String.prototype.substring.length") );
 // test cases for when substring is called with no arguments.
 // this is a string object
 new TestCase(   SECTION,
 		"var s = new String('this is a string object'); typeof s.substring()",
 		"string",
 		eval("var s = new String('this is a string object'); typeof s.substring()") );
 new TestCase(   SECTION,
 		"var s = new String(''); s.substring()",
 		"",
 		eval("var s = new String(''); s.substring()") );
 new TestCase(   SECTION,
 		"var s = new String('this is a string object'); s.substring()",
 		"this is a string object",
 		eval("var s = new String('this is a string object'); s.substring()") );
 new TestCase(   SECTION,
 		"var s = new String('this is a string object'); s.substring(NaN)",
 		"this is a string object",
 		eval("var s = new String('this is a string object'); s.substring(NaN)") );
 new TestCase(   SECTION,
 		"var s = new String('this is a string object'); s.substring(-0.01)",
 		"this is a string object",
 		eval("var s = new String('this is a string object'); s.substring(-0.01)") );
 new TestCase(   SECTION,
 		"var s = new String('this is a string object'); s.substring(s.length)",
 		"",
 		eval("var s = new String('this is a string object'); s.substring(s.length)") );
 new TestCase(   SECTION,
 		"var s = new String('this is a string object'); s.substring(s.length+1)",
 		"",
 		eval("var s = new String('this is a string object'); s.substring(s.length+1)") );
 new TestCase(   SECTION,
 		"var s = new String('this is a string object'); s.substring(Infinity)",
 		"",
 		eval("var s = new String('this is a string object'); s.substring(Infinity)") );
 new TestCase(   SECTION,
 		"var s = new String('this is a string object'); s.substring(-Infinity)",
 		"this is a string object",
 		eval("var s = new String('this is a string object'); s.substring(-Infinity)") );
 // this is not a String object, start is not an integer
 new TestCase(   SECTION,
 		"var s = new Array(1,2,3,4,5); s.substring = String.prototype.substring; s.substring()",
 		"1,2,3,4,5",
 		eval("var s = new Array(1,2,3,4,5); s.substring = String.prototype.substring; s.substring()") );
 new TestCase(   SECTION,
 		"var s = new Array(1,2,3,4,5); s.substring = String.prototype.substring; s.substring(true)",
 		",2,3,4,5",
 		eval("var s = new Array(1,2,3,4,5); s.substring = String.prototype.substring; s.substring(true)") );
 new TestCase(   SECTION,
 		"var s = new Array(1,2,3,4,5); s.substring = String.prototype.substring; s.substring('4')",
 		"3,4,5",
 		eval("var s = new Array(1,2,3,4,5); s.substring = String.prototype.substring; s.substring('4')") );
 new TestCase(   SECTION,
 		"var s = new Array(); s.substring = String.prototype.substring; s.substring('4')",
 		"",
 		eval("var s = new Array(); s.substring = String.prototype.substring; s.substring('4')") );
 // this is an object object
 new TestCase(   SECTION,
 		"var obj = new Object(); obj.substring = String.prototype.substring; obj.substring(8)",
 		"Object]",
 		eval("var obj = new Object(); obj.substring = String.prototype.substring; obj.substring(8)") );
 // this is a function object
 new TestCase(   SECTION,
 		"var obj = new Function(); obj.substring = String.prototype.substring; obj.toString = Object.prototype.toString; obj.substring(8)",
 		"Function]",
 		eval("var obj = new Function(); obj.substring = String.prototype.substring; obj.toString = Object.prototype.toString; obj.substring(8)") );
 // this is a number object
 new TestCase(   SECTION,
 		"var obj = new Number(NaN); obj.substring = String.prototype.substring; obj.substring(false)",
 		"NaN",
 		eval("var obj = new Number(NaN); obj.substring = String.prototype.substring; obj.substring(false)") );
 // this is the Math object
 new TestCase(   SECTION,
 		"var obj = Math; obj.substring = String.prototype.substring; obj.substring(Math.PI)",
 		"ject Math]",
 		eval("var obj = Math; obj.substring = String.prototype.substring; obj.substring(Math.PI)") );
 // this is a Boolean object
 new TestCase(   SECTION,
 		"var obj = new Boolean(); obj.substring = String.prototype.substring; obj.substring(new Array())",
 		"false",
 		eval("var obj = new Boolean(); obj.substring = String.prototype.substring; obj.substring(new Array())") );
 // this is a user defined object
 new TestCase( SECTION,
 	      "var obj = new MyObject( null ); obj.substring(0)",
 	      "null",
 	      eval( "var obj = new MyObject( null ); obj.substring(0)") );
 test();
 function MyObject( value ) {
   this.value = value;
   this.substring = String.prototype.substring;
   this.toString = new Function ( "return this.value+''" );
 }