utatane.tea@gmail.com | 173452c | 2015-03-10 19:13:48 +0000 | [diff] [blame] | 1 | // Set constructor with adder change. |
| 2 | |
| 3 | var originalAdder = Set.prototype.add; |
| 4 | var counter = 0; |
| 5 | |
| 6 | Set.prototype.add = function (value) { |
| 7 | counter++; |
| 8 | return originalAdder.call(this, value); |
| 9 | }; |
| 10 | |
| 11 | var values = [0, 1, 2, 3, 4, 5, 4, 3, 2, 1, 0]; |
| 12 | var set = new Set(values); |
| 13 | if (set.size !== 6) |
| 14 | throw "Error: bad set size " + set.size; |
| 15 | if (counter !== values.length) |
| 16 | throw "Error: bad counter " + counter; |
| 17 | |
| 18 | Set.prototype.add = function () { |
| 19 | throw new Error("adder called"); |
| 20 | }; |
| 21 | |
| 22 | var set = new Set(); |
| 23 | var set = new Set([]); |
| 24 | var error = null; |
| 25 | try { |
| 26 | var set = new Set([0]); |
| 27 | } catch (e) { |
| 28 | error = e; |
| 29 | } |
| 30 | if (!error) |
| 31 | throw "Error: error not thrown"; |
| 32 | if (String(error) !== "Error: adder called") |
| 33 | throw "Error: bad error " + String(error); |
| 34 | |