52381d8952
Automatic update from web-platform-tests usb: Return zeroth alternate interface by default As specified in https://wicg.github.io/webusb/#dom-usbinterface-alternate the alternate attribute of the USBInterface interface should be set to the zeroth alternate interface descriptor by default. As implemented however this attribute returned null when the interface was not claimed. The behavior in this patch matches the specification and the Node WebUSB implementation of this attribute. Web Platform Tests have been updated to test the specified behavior. Bug: 1093502 Change-Id: I79ccc5302617f1435cb490971d3d917ce88a1717 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3307829 Auto-Submit: Reilly Grant <reillyg@chromium.org> Commit-Queue: Ovidio Ruiz-Henríquez <odejesush@chromium.org> Reviewed-by: Ovidio Ruiz-Henríquez <odejesush@chromium.org> Cr-Commit-Position: refs/heads/main@{#947509} -- wpt-commits: 4d4c746a57114535e21a7f21044d7eb86cf99d2f wpt-pr: 31787
56 lines
2.2 KiB
JavaScript
56 lines
2.2 KiB
JavaScript
// META: script=/resources/test-only-api.js
|
|
// 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);
|
|
let usbInterface = new USBInterface(
|
|
configuration, configuration.interfaces[0].interfaceNumber);
|
|
assertDeviceInfoEquals(
|
|
usbInterface, fakeDeviceInit.configurations[1].interfaces[0]);
|
|
}, 'Can construct a USBInterface.');
|
|
|
|
usb_test(async () => {
|
|
let { device } = await getFakeDevice();
|
|
let configuration = new USBConfiguration(
|
|
device, device.configurations[1].configurationValue);
|
|
try {
|
|
let usbInterface = new USBInterface(
|
|
configuration, configuration.interfaces.length);
|
|
assert_unreached('USBInterface should reject an invalid interface number');
|
|
} catch (error) {
|
|
assert_equals(error.name, 'RangeError');
|
|
}
|
|
}, 'Constructing a USBInterface with an invalid interface number ' +
|
|
'throws a range error.');
|
|
|
|
usb_test(async () => {
|
|
let { device } = await getFakeDevice();
|
|
await device.open();
|
|
await device.selectConfiguration(2);
|
|
let configuration = new USBConfiguration(
|
|
device, device.configurations[1].configurationValue);
|
|
let usbInterface = new USBInterface(
|
|
configuration, configuration.interfaces[0].interfaceNumber);
|
|
assert_equals(usbInterface.alternate.alternateSetting, 0);
|
|
}, 'The alternate attribute of USBInterface returns the one with ' +
|
|
'bAlternateSetting 0 if the interface has not been claimed.');
|
|
|
|
usb_test(async () => {
|
|
let { device } = await getFakeDevice();
|
|
await device.open();
|
|
await device.selectConfiguration(2);
|
|
await device.claimInterface(0);
|
|
let configuration = new USBConfiguration(
|
|
device, device.configurations[1].configurationValue);
|
|
let usbInterface = new USBInterface(
|
|
configuration, configuration.interfaces[0].interfaceNumber);
|
|
assert_equals(usbInterface.alternate.alternateSetting, 0);
|
|
await device.selectAlternateInterface(0, 1);
|
|
assert_equals(usbInterface.alternate.alternateSetting, 1);
|
|
}, 'The alternate attribute of USBInterface returns the active alternate ' +
|
|
'interface.');
|