diff options
Diffstat (limited to 'Source/JavaScriptCore/tests/mozilla/js1_5/Scope/scope-001.js')
-rw-r--r-- | Source/JavaScriptCore/tests/mozilla/js1_5/Scope/scope-001.js | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/Source/JavaScriptCore/tests/mozilla/js1_5/Scope/scope-001.js b/Source/JavaScriptCore/tests/mozilla/js1_5/Scope/scope-001.js new file mode 100644 index 0000000..7b3cb02 --- /dev/null +++ b/Source/JavaScriptCore/tests/mozilla/js1_5/Scope/scope-001.js @@ -0,0 +1,110 @@ +/* +* The contents of this file are subject to the Netscape Public +* License Version 1.1 (the "License"); you may not use this file +* except in compliance with the License. You may obtain a copy of +* the License at http://www.mozilla.org/NPL/ +* +* Software distributed under the License is distributed on an "AS +* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or +* implied. See the License for the specific language governing +* rights and limitations under the License. +* +* The Original Code is mozilla.org code. +* +* The Initial Developer of the Original Code is Netscape +* Communications Corporation. Portions created by Netscape are +* Copyright (C) 1998 Netscape Communications Corporation. All +* Rights Reserved. +* +* Contributor(s): pschwartau@netscape.com +* +* +* The idea behind bug 53268 is as follows. The item 'five' below is defined +* as const, hence is a read-only property of the global object. So if we set +* obj.__proto__ = this, 'five' should become a read-only propery of obj. +* +* If we then change obj.__proto__ to null, obj.five should initially be +* undefined. We should be able to define obj.five to whatever we want, +* and be able to access this value as obj.five. +* +* Bug 53268 was filed because obj.five could not be set or accessed after +* obj.__proto__ had been set to the global object and then to null. +*/ +//----------------------------------------------------------------------------- +var bug = '53268'; +var status = 'Testing scope after changing obj.__proto__'; +var expect= ''; +var actual = ''; +var obj = {}; +const five = 5; + + +//----------------------------------------------------------------------------- +test(); +//----------------------------------------------------------------------------- + + +function test() +{ + enterFunc ("test"); + printBugNumber (bug); + printStatus (status); + + + status= 'Step 1: setting obj.__proto__ = global object'; + obj.__proto__ = this; + + actual = obj.five; + expect=5; + reportCompare (expect, actual, status); + + obj.five=1; + actual = obj.five; + expect=5; + reportCompare (expect, actual, status); + + + + status= 'Step 2: setting obj.__proto__ = null'; + obj.__proto__ = null; + + actual = obj.five; + expect=undefined; + reportCompare (expect, actual, status); + + obj.five=2; + actual = obj.five; + expect=2; + reportCompare (expect, actual, status); + + + + status= 'Step 3: setting obj.__proto__ to global object again'; + obj.__proto__ = this; + + actual = obj.five; + expect=2; //<--- (FROM STEP 2 ABOVE) + reportCompare (expect, actual, status); + + obj.five=3; + actual = obj.five; + expect=3; + reportCompare (expect, actual, status); + + + + status= 'Step 4: setting obj.__proto__ to null again'; + obj.__proto__ = null; + + actual = obj.five; + expect=3; //<--- (FROM STEP 3 ABOVE) + reportCompare (expect, actual, status); + + obj.five=4; + actual = obj.five; + expect=4; + reportCompare (expect, actual, status); + + + exitFunc ("test"); +} |