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comparison: js/src/tests/ecma_5/JSON/cyclic-stringify.js
js/src/tests/ecma_5/JSON/cyclic-stringify.js
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| -1:000000000000 | 0:4a966efae531 |
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| 1 // Any copyright is dedicated to the Public Domain. | |
| 2 // http://creativecommons.org/licenses/publicdomain/ | |
| 3 | |
| 4 //----------------------------------------------------------------------------- | |
| 5 var BUGNUMBER = 578273; | |
| 6 var summary = | |
| 7 "ES5: Properly detect cycles in JSON.stringify (throw TypeError, check for " + | |
| 8 "cycles rather than imprecisely rely on recursion limits)"; | |
| 9 | |
| 10 print(BUGNUMBER + ": " + summary); | |
| 11 | |
| 12 /************** | |
| 13 * BEGIN TEST * | |
| 14 **************/ | |
| 15 | |
| 16 // objects | |
| 17 | |
| 18 var count = 0; | |
| 19 var desc = | |
| 20 { | |
| 21 get: function() { count++; return obj; }, | |
| 22 enumerable: true, | |
| 23 configurable: true | |
| 24 }; | |
| 25 var obj = Object.defineProperty({ p1: 0 }, "p2", desc); | |
| 26 | |
| 27 try | |
| 28 { | |
| 29 var str = JSON.stringify(obj); | |
| 30 assertEq(false, true, "should have thrown, got " + str); | |
| 31 } | |
| 32 catch (e) | |
| 33 { | |
| 34 assertEq(e instanceof TypeError, true, | |
| 35 "wrong error type: " + e.constructor.name); | |
| 36 assertEq(count, 1, | |
| 37 "cyclic data structures not detected immediately"); | |
| 38 } | |
| 39 | |
| 40 count = 0; | |
| 41 var obj2 = Object.defineProperty({}, "obj", desc); | |
| 42 try | |
| 43 { | |
| 44 var str = JSON.stringify(obj2); | |
| 45 assertEq(false, true, "should have thrown, got " + str); | |
| 46 } | |
| 47 catch (e) | |
| 48 { | |
| 49 assertEq(e instanceof TypeError, true, | |
| 50 "wrong error type: " + e.constructor.name); | |
| 51 assertEq(count, 2, | |
| 52 "cyclic data structures not detected immediately"); | |
| 53 } | |
| 54 | |
| 55 | |
| 56 // arrays | |
| 57 | |
| 58 var count = 0; | |
| 59 var desc = | |
| 60 { | |
| 61 get: function() { count++; return arr; }, | |
| 62 enumerable: true, | |
| 63 configurable: true | |
| 64 }; | |
| 65 var arr = Object.defineProperty([], "0", desc); | |
| 66 | |
| 67 try | |
| 68 { | |
| 69 var str = JSON.stringify(arr); | |
| 70 assertEq(false, true, "should have thrown, got " + str); | |
| 71 } | |
| 72 catch (e) | |
| 73 { | |
| 74 assertEq(e instanceof TypeError, true, | |
| 75 "wrong error type: " + e.constructor.name); | |
| 76 assertEq(count, 1, | |
| 77 "cyclic data structures not detected immediately"); | |
| 78 } | |
| 79 | |
| 80 count = 0; | |
| 81 var arr2 = Object.defineProperty([], "0", desc); | |
| 82 try | |
| 83 { | |
| 84 var str = JSON.stringify(arr2); | |
| 85 assertEq(false, true, "should have thrown, got " + str); | |
| 86 } | |
| 87 catch (e) | |
| 88 { | |
| 89 assertEq(e instanceof TypeError, true, | |
| 90 "wrong error type: " + e.constructor.name); | |
| 91 assertEq(count, 2, | |
| 92 "cyclic data structures not detected immediately"); | |
| 93 } | |
| 94 | |
| 95 /******************************************************************************/ | |
| 96 | |
| 97 if (typeof reportCompare === "function") | |
| 98 reportCompare(true, true); | |
| 99 | |
| 100 print("Tests complete"); |
