| // |reftest| skip-if(!xulRuntime.shell) -- needs neuter() |
| /* |
| * Any copyright is dedicated to the Public Domain. |
| * http://creativecommons.org/licenses/publicdomain/ |
| */ |
| |
| var gTestfile = "DataView-set-arguments-neutering.js"; |
| //----------------------------------------------------------------------------- |
| var BUGNUMBER = 991981; |
| var summary = |
| "DataView.prototype.set* methods shouldn't misbehave horribly if " + |
| "index-argument conversion neuters the ArrayBuffer being modified"; |
| |
| print(BUGNUMBER + ": " + summary); |
| |
| /************** |
| * BEGIN TEST * |
| **************/ |
| |
| function testIndex(dataType) |
| { |
| var ab = new ArrayBuffer(0x1000); |
| |
| var dv = new DataView(ab); |
| |
| var start = |
| { |
| valueOf: function() |
| { |
| neuter(ab, dataType); |
| gc(); |
| return 0xFFF; |
| } |
| }; |
| |
| var ok = false; |
| try |
| { |
| dv.setUint8(start, 0x42); |
| } |
| catch (e) |
| { |
| ok = true; |
| } |
| assertEq(ok, true, "should have thrown"); |
| assertEq(ab.byteLength, 0, "should have been neutered correctly"); |
| } |
| testIndex("change-data"); |
| testIndex("same-data"); |
| |
| function testValue(dataType) |
| { |
| var ab = new ArrayBuffer(0x100000); |
| |
| var dv = new DataView(ab); |
| |
| var value = |
| { |
| valueOf: function() |
| { |
| neuter(ab, dataType); |
| gc(); |
| return 0x42; |
| } |
| }; |
| |
| var ok = false; |
| try |
| { |
| dv.setUint8(0xFFFFF, value); |
| } |
| catch (e) |
| { |
| ok = true; |
| } |
| assertEq(ok, true, "should have thrown"); |
| assertEq(ab.byteLength, 0, "should have been neutered correctly"); |
| } |
| testValue("change-data"); |
| testValue("same-data"); |
| |
| /******************************************************************************/ |
| |
| if (typeof reportCompare === "function") |
| reportCompare(true, true); |
| |
| print("Tests complete"); |