| function shouldBe(actual, expected) { |
| if (actual !== expected) |
| throw new Error(`bad value: ${String(actual)}`); |
| } |
| |
| function shouldThrow(func, errorMessage) { |
| var errorThrown = false; |
| var error = null; |
| try { |
| func(); |
| } catch (e) { |
| errorThrown = true; |
| error = e; |
| } |
| if (!errorThrown) |
| throw new Error('not thrown'); |
| if (String(error) !== errorMessage) |
| throw new Error(`bad error: ${String(error)}`); |
| } |
| |
| var global = this; |
| for (var i = 0; i < 100; ++i) { |
| (() => { |
| // |this| should reference to the global one. |
| shouldBe(eval("this"), global); |
| })(); |
| } |
| |
| for (var i = 0; i < 100; ++i) { |
| var THIS = {}; |
| (function test() { |
| // |this| should reference to the function's one. |
| shouldBe(eval("this"), THIS); |
| }).call(THIS); |
| } |