1// Flags: --experimental-loader ./test/fixtures/es-module-loaders/loader-get-format.mjs 2import { mustCall, mustNotCall } from '../common/index.mjs'; 3import assert from 'assert'; 4 5import('../fixtures/es-modules/package-type-module/extension.unknown') 6.then( 7 mustCall((ns) => { 8 assert.strictEqual(ns.default, 'unknown'); 9 }), 10 // Do not use .catch; want exclusive or 11 mustNotCall(() => {}) 12); 13