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// 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 <stdint.h>
#include "base/bind.h"
#include "base/strings/utf_string_conversions.h"
#include "device/usb/mock_usb_device_handle.h"
#include "device/usb/usb_descriptors.h"
#include "testing/gtest/include/gtest/gtest.h"
using testing::_;
namespace device {
namespace {
ACTION_P2(InvokeCallback, data, length) {
size_t transferred_length = std::min(length, arg7);
memcpy(arg6->data(), data, transferred_length);
arg9.Run(USB_TRANSFER_COMPLETED, arg6, transferred_length);
}
void ExpectStringDescriptors(
scoped_ptr<std::map<uint8_t, base::string16>> string_map) {
EXPECT_EQ(3u, string_map->size());
EXPECT_EQ(base::ASCIIToUTF16("String 1"), (*string_map)[1]);
EXPECT_EQ(base::ASCIIToUTF16("String 2"), (*string_map)[2]);
EXPECT_EQ(base::ASCIIToUTF16("String 3"), (*string_map)[3]);
}
class UsbDescriptorsTest : public ::testing::Test {};
TEST_F(UsbDescriptorsTest, StringDescriptor) {
static const uint8_t kBuffer[] = {0x1a, 0x03, 'H', 0, 'e', 0, 'l', 0, 'l', 0,
'o', 0, ' ', 0, 'w', 0, 'o', 0, 'r', 0,
'l', 0, 'd', 0, '!', 0};
base::string16 string;
ASSERT_TRUE(ParseUsbStringDescriptor(
std::vector<uint8_t>(kBuffer, kBuffer + sizeof(kBuffer)), &string));
EXPECT_EQ(base::ASCIIToUTF16("Hello world!"), string);
}
TEST_F(UsbDescriptorsTest, ShortStringDescriptorHeader) {
// The buffer is just too darn short.
static const uint8_t kBuffer[] = {0x01};
base::string16 string;
ASSERT_FALSE(ParseUsbStringDescriptor(
std::vector<uint8_t>(kBuffer, kBuffer + sizeof(kBuffer)), &string));
}
TEST_F(UsbDescriptorsTest, ShortStringDescriptor) {
// The buffer is just too darn short.
static const uint8_t kBuffer[] = {0x01, 0x03};
base::string16 string;
ASSERT_FALSE(ParseUsbStringDescriptor(
std::vector<uint8_t>(kBuffer, kBuffer + sizeof(kBuffer)), &string));
}
TEST_F(UsbDescriptorsTest, OddLengthStringDescriptor) {
// There's an extra byte at the end of the string.
static const uint8_t kBuffer[] = {0x0d, 0x03, 'H', 0, 'e', 0, 'l',
0, 'l', 0, 'o', 0, '!'};
base::string16 string;
ASSERT_TRUE(ParseUsbStringDescriptor(
std::vector<uint8_t>(kBuffer, kBuffer + sizeof(kBuffer)), &string));
EXPECT_EQ(base::ASCIIToUTF16("Hello"), string);
}
TEST_F(UsbDescriptorsTest, EmptyStringDescriptor) {
// The string is empty.
static const uint8_t kBuffer[] = {0x02, 0x03};
base::string16 string;
ASSERT_TRUE(ParseUsbStringDescriptor(
std::vector<uint8_t>(kBuffer, kBuffer + sizeof(kBuffer)), &string));
EXPECT_EQ(base::string16(), string);
}
TEST_F(UsbDescriptorsTest, OneByteStringDescriptor) {
// The string is only one byte.
static const uint8_t kBuffer[] = {0x03, 0x03, '?'};
base::string16 string;
ASSERT_TRUE(ParseUsbStringDescriptor(
std::vector<uint8_t>(kBuffer, kBuffer + sizeof(kBuffer)), &string));
EXPECT_EQ(base::string16(), string);
}
TEST_F(UsbDescriptorsTest, ReadStringDescriptors) {
scoped_ptr<std::map<uint8_t, base::string16>> string_map(
new std::map<uint8_t, base::string16>());
(*string_map)[1] = base::string16();
(*string_map)[2] = base::string16();
(*string_map)[3] = base::string16();
scoped_refptr<MockUsbDeviceHandle> device_handle(
new MockUsbDeviceHandle(nullptr));
static const uint8_t kStringDescriptor0[] = {0x04, 0x03, 0x21, 0x43};
EXPECT_CALL(*device_handle,
ControlTransfer(USB_DIRECTION_INBOUND, UsbDeviceHandle::STANDARD,
UsbDeviceHandle::DEVICE, 0x06, 0x0300, 0x0000, _,
_, _, _))
.WillOnce(InvokeCallback(kStringDescriptor0, sizeof(kStringDescriptor0)));
static const uint8_t kStringDescriptor1[] = {0x12, 0x03, 'S', 0, 't', 0,
'r', 0, 'i', 0, 'n', 0,
'g', 0, ' ', 0, '1', 0};
EXPECT_CALL(*device_handle,
ControlTransfer(USB_DIRECTION_INBOUND, UsbDeviceHandle::STANDARD,
UsbDeviceHandle::DEVICE, 0x06, 0x0301, 0x4321, _,
_, _, _))
.WillOnce(InvokeCallback(kStringDescriptor1, sizeof(kStringDescriptor1)));
static const uint8_t kStringDescriptor2[] = {0x12, 0x03, 'S', 0, 't', 0,
'r', 0, 'i', 0, 'n', 0,
'g', 0, ' ', 0, '2', 0};
EXPECT_CALL(*device_handle,
ControlTransfer(USB_DIRECTION_INBOUND, UsbDeviceHandle::STANDARD,
UsbDeviceHandle::DEVICE, 0x06, 0x0302, 0x4321, _,
_, _, _))
.WillOnce(InvokeCallback(kStringDescriptor2, sizeof(kStringDescriptor2)));
static const uint8_t kStringDescriptor3[] = {0x12, 0x03, 'S', 0, 't', 0,
'r', 0, 'i', 0, 'n', 0,
'g', 0, ' ', 0, '3', 0};
EXPECT_CALL(*device_handle,
ControlTransfer(USB_DIRECTION_INBOUND, UsbDeviceHandle::STANDARD,
UsbDeviceHandle::DEVICE, 0x06, 0x0303, 0x4321, _,
_, _, _))
.WillOnce(InvokeCallback(kStringDescriptor3, sizeof(kStringDescriptor3)));
ReadUsbStringDescriptors(device_handle, std::move(string_map),
base::Bind(&ExpectStringDescriptors));
}
} // namespace
} // namespace device
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