| function shouldBe(actual, expected) { | |
| if (actual !== expected) | |
| throw new Error('bad value: ' + actual); | |
| } | |
| function*gen() { throw new Error(); } | |
| var flag = true; | |
| var g = gen(); | |
| try { | |
| g.next(); | |
| flag = false; | |
| } catch (error) { | |
| shouldBe(error.stack.startsWith("gen@"), true); | |
| } | |
| shouldBe(flag, true); |