import test from 'ava'; import ow from '../source'; test('buffer', t => { t.notThrows(() => { ow(Buffer.alloc(2), ow.buffer); }); t.notThrows(() => { ow(Buffer.from('f'), ow.buffer); }); t.throws(() => { ow('foo' as any, ow.buffer); }, 'Expected argument to be of type `Buffer` but received type `string`'); t.throws(() => { ow('foo' as any, 'foo', ow.buffer); }, 'Expected `foo` to be of type `Buffer` but received type `string`'); t.throws(() => { ow(12 as any, ow.buffer); }, 'Expected argument to be of type `Buffer` but received type `number`'); });