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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/strings/utf_string_conversions.h"
#include "device/usb/usb_descriptors.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace device {
namespace {
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);
}
} // namespace
} // namespace device
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