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)}`); | |
} | |
function foo() { | |
Object.defineProperty(arguments, '0', {value: s}); | |
} | |
let s = [0.1].toLocaleString().padEnd(2 ** 31 - 1, 'ab'); | |
shouldThrow(() => { | |
foo(s); | |
}, `RangeError: Out of memory`); |