text: // META: script=/webusb/resources/fake-devices.js
  // META: script=/webusb/resources/usb-helpers.js
  'use strict';
  
  usb_test(async () => {
    let { device } = await getFakeDevice();
    let configuration = new USBConfiguration(
        device, device.configurations[1].configurationValue);
    assertDeviceInfoEquals(configuration, fakeDeviceInit.configurations[1]);
  }, 'Can construct a USBConfiguration.');
  
  usb_test(async () => {
    let { device } = await getFakeDevice();
    try {
      let configuration =
          new USBConfiguration(device, device.configurations.length + 1);
      assert_unreached(
          'USBConfiguration should reject an invalid configuration value');
    } catch (error) {
      assert_equals(error.name, 'RangeError');
    }
  }, 'Constructing a USBConfiguration with an invalid configuration value ' +
      'throws a range error.');
  