diff options
Diffstat (limited to 'js/src/tests/non262/extensions/TypedArray-subarray-arguments-detaching.js')
-rw-r--r-- | js/src/tests/non262/extensions/TypedArray-subarray-arguments-detaching.js | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/js/src/tests/non262/extensions/TypedArray-subarray-arguments-detaching.js b/js/src/tests/non262/extensions/TypedArray-subarray-arguments-detaching.js new file mode 100644 index 0000000000..04c12c6423 --- /dev/null +++ b/js/src/tests/non262/extensions/TypedArray-subarray-arguments-detaching.js @@ -0,0 +1,111 @@ +/* + * Any copyright is dedicated to the Public Domain. + * http://creativecommons.org/licenses/publicdomain/ + */ + +var gTestfile = "TypedArray-subarray-arguments-detaching.js"; +//----------------------------------------------------------------------------- +var BUGNUMBER = 991981; +var summary = + "%TypedArray.prototype.subarray shouldn't misbehave horribly if " + + "index-argument conversion detaches the underlying ArrayBuffer"; + +print(BUGNUMBER + ": " + summary); + +/************** + * BEGIN TEST * + **************/ + +function testBegin() +{ + var ab = new ArrayBuffer(0x1000); + + var begin = + { + valueOf: function() + { + detachArrayBuffer(ab); + return 0x800; + } + }; + + var ta = new Uint8Array(ab); + + var ok = false; + try + { + ta.subarray(begin); + } + catch (e) + { + ok = true; + } + assertEq(ok, true, "start weirdness should have thrown"); + assertEq(ab.byteLength, 0, "detaching should work for start weirdness"); +} +testBegin(); + +function testBeginWithEnd() +{ + var ab = new ArrayBuffer(0x1000); + + var begin = + { + valueOf: function() + { + detachArrayBuffer(ab); + return 0x800; + } + }; + + var ta = new Uint8Array(ab); + + var ok = false; + try + { + ta.subarray(begin, 0x1000); + } + catch (e) + { + ok = true; + } + assertEq(ok, true, "start weirdness should have thrown"); + assertEq(ab.byteLength, 0, "detaching should work for start weirdness"); +} +testBeginWithEnd(); + +function testEnd() +{ + var ab = new ArrayBuffer(0x1000); + + var end = + { + valueOf: function() + { + detachArrayBuffer(ab); + return 0x1000; + } + }; + + var ta = new Uint8Array(ab); + + var ok = false; + try + { + ta.subarray(0x800, end); + } + catch (e) + { + ok = true; + } + assertEq(ok, true, "start weirdness should have thrown"); + assertEq(ab.byteLength, 0, "detaching should work for start weirdness"); +} +testEnd(); + +/******************************************************************************/ + +if (typeof reportCompare === "function") + reportCompare(true, true); + +print("Tests complete"); |