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comparison: js/src/jit-test/tests/basic/splice-fail-step-16.js
js/src/jit-test/tests/basic/splice-fail-step-16.js
- changeset 0
- 6474c204b198
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| -1:000000000000 | 0:ba88547e3312 |
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| 1 /* Test that arrays resize normally during splice, even if .length is non-writable. */ | |
| 2 | |
| 3 var arr = [1, 2, 3, 4, 5, 6]; | |
| 4 | |
| 5 Object.defineProperty(arr, "length", {writable: false}); | |
| 6 | |
| 7 try | |
| 8 { | |
| 9 var removed = arr.splice(3, 3, 9, 9, 9, 9); | |
| 10 throw new Error("splice didn't throw, returned [" + removed + "]"); | |
| 11 } | |
| 12 catch (e) | |
| 13 { | |
| 14 assertEq(e instanceof TypeError, true, | |
| 15 "should have thrown a TypeError, instead threw " + e + ", arr is " + arr); | |
| 16 } | |
| 17 | |
| 18 // The exception should happen in step 16, which means we've already removed the array elements. | |
| 19 assertEq(arr[0], 1); | |
| 20 assertEq(arr[1], 2); | |
| 21 assertEq(arr[2], 3); | |
| 22 assertEq(arr[3], 9); | |
| 23 assertEq(arr[4], 9); | |
| 24 assertEq(arr[5], 9); | |
| 25 assertEq(arr.length, 6); |
