blob: 6848e08c42e3e15f357cb8ec6b23a40cdf8436ff [file] [log] [blame]
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)}`);
}
let a = function() {};
Object.defineProperty(a, Symbol.hasInstance, { value: Atomics });
let b = a.bind();
shouldThrow(() => {
Function.prototype[Symbol.hasInstance].call(b)
}, `TypeError: function [Symbol.hasInstance] is not a function, undefined, or null`);