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comparison: js/src/tests/ecma_5/Array/length-set-object.js
js/src/tests/ecma_5/Array/length-set-object.js
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| -1:000000000000 | 0:457fa1ffd1ca |
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| 1 /* | |
| 2 * Any copyright is dedicated to the Public Domain. | |
| 3 * http://creativecommons.org/licenses/publicdomain/ | |
| 4 * Contributor: | |
| 5 * Jeff Walden <jwalden+code@mit.edu> | |
| 6 */ | |
| 7 | |
| 8 //----------------------------------------------------------------------------- | |
| 9 var BUGNUMBER = 657298; | |
| 10 var summary = 'Various quirks of setting array length properties to objects'; | |
| 11 | |
| 12 print(BUGNUMBER + ": " + summary); | |
| 13 | |
| 14 /************** | |
| 15 * BEGIN TEST * | |
| 16 **************/ | |
| 17 | |
| 18 function invokeConversionTwice1() | |
| 19 { | |
| 20 var count = 0; | |
| 21 [].length = { valueOf: function() { count++; return 1; } }; | |
| 22 assertEq(count, 2); | |
| 23 } | |
| 24 invokeConversionTwice1(); | |
| 25 | |
| 26 function invokeConversionTwice2() | |
| 27 { | |
| 28 var count = 0; | |
| 29 [].length = { toString: function() { count++; return 1; }, valueOf: null }; | |
| 30 assertEq(count, 2); | |
| 31 } | |
| 32 invokeConversionTwice2(); | |
| 33 | |
| 34 function dontOverwriteError1() | |
| 35 { | |
| 36 try | |
| 37 { | |
| 38 [].length = { valueOf: {}, toString: {} }; | |
| 39 throw new Error("didn't throw a TypeError"); | |
| 40 } | |
| 41 catch (e) | |
| 42 { | |
| 43 assertEq(e instanceof TypeError, true, | |
| 44 "expected a TypeError running out of conversion options, got " + e); | |
| 45 } | |
| 46 } | |
| 47 dontOverwriteError1(); | |
| 48 | |
| 49 function dontOverwriteError2() | |
| 50 { | |
| 51 try | |
| 52 { | |
| 53 [].length = { valueOf: function() { throw "error"; } }; | |
| 54 throw new Error("didn't throw a TypeError"); | |
| 55 } | |
| 56 catch (e) | |
| 57 { | |
| 58 assertEq(e, "error", "expected 'error' from failed conversion, got " + e); | |
| 59 } | |
| 60 } | |
| 61 dontOverwriteError2(); | |
| 62 | |
| 63 /******************************************************************************/ | |
| 64 | |
| 65 if (typeof reportCompare === "function") | |
| 66 reportCompare(true, true); | |
| 67 | |
| 68 print("All tests passed!"); |
