// Copyright 2017 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// Flags: --allow-natives-syntax --harmony-dynamic-import

var ran = false;
async function foo () {
  try {
    let life = await import('modules-skip-2.js');
    assertUnreachable();
  } catch(e) {
    assertEquals('42 is not the answer', e.message);
    ran = true;
  }
}

foo();

%RunMicrotasks();

assertTrue(ran);
