import test from '@ava/test';import {fixture} from '../helpers/exec.js';test('test()', async t => {const result = await t.throwsAsync(fixture(['test.js']));t.regex(result.stdout, /Expected an implementation/);});test('t.try()', async t => {const result = await t.throwsAsync(fixture(['try.js']));t.regex(result.stdout, /Expected an implementation/);});