import test from 'ava'; import ow from '../source'; test('symbol', t => { t.notThrows(() => { ow(Symbol.iterator, ow.symbol); }); t.notThrows(() => { ow(Symbol('foo'), ow.symbol); }); t.throws(() => { ow(12 as any, ow.symbol); }, 'Expected argument to be of type `symbol` but received type `number`'); t.throws(() => { ow(12 as any, 'foo', ow.symbol); }, 'Expected `foo` to be of type `symbol` but received type `number`'); });