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comparison: js/src/tests/ecma_5/misc/global-numeric-properties.js
js/src/tests/ecma_5/misc/global-numeric-properties.js
- changeset 0
- 6474c204b198
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| -1:000000000000 | 0:e1b2e5bd2b98 |
|---|---|
| 1 /* | |
| 2 * Any copyright is dedicated to the Public Domain. | |
| 3 * http://creativecommons.org/licenses/publicdomain/ | |
| 4 */ | |
| 5 | |
| 6 //----------------------------------------------------------------------------- | |
| 7 var BUGNUMBER = 537863; | |
| 8 var summary = | |
| 9 'undefined, Infinity, and NaN global properties should not be writable'; | |
| 10 | |
| 11 print(BUGNUMBER + ": " + summary); | |
| 12 | |
| 13 /************** | |
| 14 * BEGIN TEST * | |
| 15 **************/ | |
| 16 | |
| 17 var desc, old, error; | |
| 18 var global = this; | |
| 19 | |
| 20 var names = ["NaN", "Infinity", "undefined"]; | |
| 21 | |
| 22 for (var i = 0; i < names.length; i++) | |
| 23 { | |
| 24 var name = names[i]; | |
| 25 desc = Object.getOwnPropertyDescriptor(global, name); | |
| 26 assertEq(desc !== undefined, true, name + " should be present"); | |
| 27 assertEq(desc.enumerable, false, name + " should not be enumerable"); | |
| 28 assertEq(desc.configurable, false, name + " should not be configurable"); | |
| 29 assertEq(desc.writable, false, name + " should not be writable"); | |
| 30 | |
| 31 old = global[name]; | |
| 32 global[name] = 17; | |
| 33 assertEq(global[name], old, name + " changed on setting?"); | |
| 34 | |
| 35 error = "before"; | |
| 36 try | |
| 37 { | |
| 38 throw new TypeError("SpiderMonkey doesn't currently implement " + | |
| 39 "strict-mode throwing when setting a readonly " + | |
| 40 "property, not running this bit of test for now; " + | |
| 41 "see bug 537873"); | |
| 42 | |
| 43 (function() { "use strict"; global[name] = 42; error = "didn't throw"; })(); | |
| 44 } | |
| 45 catch (e) | |
| 46 { | |
| 47 if (e instanceof TypeError) | |
| 48 error = "typeerror"; | |
| 49 else | |
| 50 error = "bad exception: " + e; | |
| 51 } | |
| 52 assertEq(error, "typeerror", "wrong strict mode error setting " + name); | |
| 53 } | |
| 54 | |
| 55 /******************************************************************************/ | |
| 56 | |
| 57 reportCompare(true, true); | |
| 58 | |
| 59 print("All tests passed!"); |
