Read USB device configurations from index 0.

device/usb/usb_descriptors_unittest.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "device/usb/usb_descriptors.h"
 
 #include <stdint.h>
 
 #include <memory>
 
@@ skipping 207 matching lines @@
 TEST_F(UsbDescriptorsTest, ReadDescriptors) {
   scoped_refptr<MockUsbDeviceHandle> device_handle(
       new MockUsbDeviceHandle(nullptr));
   EXPECT_CALL(*device_handle,
               ControlTransfer(USB_DIRECTION_INBOUND, UsbDeviceHandle::STANDARD,
                               UsbDeviceHandle::DEVICE, 0x06, 0x0100, 0x0000, _,
                               _, _, _))
       .WillOnce(InvokeCallback(kDeviceDescriptor, sizeof(kDeviceDescriptor)));
   EXPECT_CALL(*device_handle,
               ControlTransfer(USB_DIRECTION_INBOUND, UsbDeviceHandle::STANDARD,
+                              UsbDeviceHandle::DEVICE, 0x06, 0x0200, 0x0000, _,
+                              _, _, _))
+      .Times(2)
+      .WillRepeatedly(
+          InvokeCallback(kConfig1Descriptor, sizeof(kConfig1Descriptor)));
+  EXPECT_CALL(*device_handle,
+              ControlTransfer(USB_DIRECTION_INBOUND, UsbDeviceHandle::STANDARD,
                               UsbDeviceHandle::DEVICE, 0x06, 0x0201, 0x0000, _,
                               _, _, _))
       .Times(2)
       .WillRepeatedly(
-          InvokeCallback(kConfig1Descriptor, sizeof(kConfig1Descriptor)));
-  EXPECT_CALL(*device_handle,
-              ControlTransfer(USB_DIRECTION_INBOUND, UsbDeviceHandle::STANDARD,
-                              UsbDeviceHandle::DEVICE, 0x06, 0x0202, 0x0000, _,
-                              _, _, _))
-      .Times(2)
-      .WillRepeatedly(
           InvokeCallback(kConfig2Descriptor, sizeof(kConfig2Descriptor)));
 
   ReadUsbDescriptors(device_handle, base::Bind(&OnReadDescriptors));
 }
 
 TEST_F(UsbDescriptorsTest, NoInterfaceAssociations) {
   UsbConfigDescriptor config(1, false, false, 0);
   config.interfaces.emplace_back(0, 0, 255, 255, 255);
   config.interfaces.emplace_back(0, 1, 255, 255, 255);
   config.interfaces.emplace_back(1, 0, 255, 255, 255);
@@ skipping 180 matching lines @@
                               _, _, _))
       .WillOnce(InvokeCallback(kStringDescriptor3, sizeof(kStringDescriptor3)));
 
   ReadUsbStringDescriptors(device_handle, std::move(string_map),
                            base::Bind(&ExpectStringDescriptors));
 }
 
 }  // namespace
 
 }  // namespace device