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// Copyright (c) 2012 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 <stddef.h>
#include <algorithm>
#include "remoting/base/util.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/webrtc/modules/desktop_capture/desktop_geometry.h"
namespace remoting {
TEST(ReplaceLfByCrLfTest, Basic) {
EXPECT_EQ("ab", ReplaceLfByCrLf("ab"));
EXPECT_EQ("\r\nab", ReplaceLfByCrLf("\nab"));
EXPECT_EQ("\r\nab\r\n", ReplaceLfByCrLf("\nab\n"));
EXPECT_EQ("\r\nab\r\ncd", ReplaceLfByCrLf("\nab\ncd"));
EXPECT_EQ("\r\nab\r\ncd\r\n", ReplaceLfByCrLf("\nab\ncd\n"));
EXPECT_EQ("\r\n\r\nab\r\n\r\ncd\r\n\r\n",
ReplaceLfByCrLf("\n\nab\n\ncd\n\n"));
}
TEST(ReplaceLfByCrLfTest, Speed) {
int kLineSize = 128;
std::string line(kLineSize, 'a');
line[kLineSize - 1] = '\n';
// Make a 10M string.
int kLineNum = 10 * 1024 * 1024 / kLineSize;
std::string buffer;
buffer.resize(kLineNum * kLineSize);
for (int i = 0; i < kLineNum; ++i) {
memcpy(&buffer[i * kLineSize], &line[0], kLineSize);
}
// Convert the string.
buffer = ReplaceLfByCrLf(buffer);
// Check the converted string.
EXPECT_EQ(static_cast<size_t>((kLineSize + 1) * kLineNum), buffer.size());
const char* p = &buffer[0];
for (int i = 0; i < kLineNum; ++i) {
EXPECT_EQ(0, memcmp(&line[0], p, kLineSize - 1));
p += kLineSize - 1;
EXPECT_EQ('\r', *p++);
EXPECT_EQ('\n', *p++);
}
}
TEST(ReplaceCrLfByLfTest, Basic) {
EXPECT_EQ("ab", ReplaceCrLfByLf("ab"));
EXPECT_EQ("\nab", ReplaceCrLfByLf("\r\nab"));
EXPECT_EQ("\nab\n", ReplaceCrLfByLf("\r\nab\r\n"));
EXPECT_EQ("\nab\ncd", ReplaceCrLfByLf("\r\nab\r\ncd"));
EXPECT_EQ("\nab\ncd\n", ReplaceCrLfByLf("\r\nab\r\ncd\n"));
EXPECT_EQ("\n\nab\n\ncd\n\n",
ReplaceCrLfByLf("\r\n\r\nab\r\n\r\ncd\r\n\r\n"));
EXPECT_EQ("\rab\rcd\r", ReplaceCrLfByLf("\rab\rcd\r"));
}
TEST(ReplaceCrLfByLfTest, Speed) {
int kLineSize = 128;
std::string line(kLineSize, 'a');
line[kLineSize - 2] = '\r';
line[kLineSize - 1] = '\n';
// Make a 10M string.
int kLineNum = 10 * 1024 * 1024 / kLineSize;
std::string buffer;
buffer.resize(kLineNum * kLineSize);
for (int i = 0; i < kLineNum; ++i) {
memcpy(&buffer[i * kLineSize], &line[0], kLineSize);
}
// Convert the string.
buffer = ReplaceCrLfByLf(buffer);
// Check the converted string.
EXPECT_EQ(static_cast<size_t>((kLineSize - 1) * kLineNum), buffer.size());
const char* p = &buffer[0];
for (int i = 0; i < kLineNum; ++i) {
EXPECT_EQ(0, memcmp(&line[0], p, kLineSize - 2));
p += kLineSize - 2;
EXPECT_EQ('\n', *p++);
}
}
TEST(StringIsUtf8Test, Basic) {
EXPECT_TRUE(StringIsUtf8("", 0));
EXPECT_TRUE(StringIsUtf8("\0", 1));
EXPECT_TRUE(StringIsUtf8("abc", 3));
EXPECT_TRUE(StringIsUtf8("\xc0\x80", 2));
EXPECT_TRUE(StringIsUtf8("\xe0\x80\x80", 3));
EXPECT_TRUE(StringIsUtf8("\xf0\x80\x80\x80", 4));
EXPECT_TRUE(StringIsUtf8("\xf8\x80\x80\x80\x80", 5));
EXPECT_TRUE(StringIsUtf8("\xfc\x80\x80\x80\x80\x80", 6));
// Not enough continuation characters
EXPECT_FALSE(StringIsUtf8("\xc0", 1));
EXPECT_FALSE(StringIsUtf8("\xe0\x80", 2));
EXPECT_FALSE(StringIsUtf8("\xf0\x80\x80", 3));
EXPECT_FALSE(StringIsUtf8("\xf8\x80\x80\x80", 4));
EXPECT_FALSE(StringIsUtf8("\xfc\x80\x80\x80\x80", 5));
// One more continuation character than needed
EXPECT_FALSE(StringIsUtf8("\xc0\x80\x80", 3));
EXPECT_FALSE(StringIsUtf8("\xe0\x80\x80\x80", 4));
EXPECT_FALSE(StringIsUtf8("\xf0\x80\x80\x80\x80", 5));
EXPECT_FALSE(StringIsUtf8("\xf8\x80\x80\x80\x80\x80", 6));
EXPECT_FALSE(StringIsUtf8("\xfc\x80\x80\x80\x80\x80\x80", 7));
// Invalid first byte
EXPECT_FALSE(StringIsUtf8("\xfe\x80\x80\x80\x80\x80\x80", 7));
EXPECT_FALSE(StringIsUtf8("\xff\x80\x80\x80\x80\x80\x80", 7));
// Invalid continuation byte
EXPECT_FALSE(StringIsUtf8("\xc0\x00", 2));
EXPECT_FALSE(StringIsUtf8("\xc0\x40", 2));
EXPECT_FALSE(StringIsUtf8("\xc0\xc0", 2));
}
} // namespace remoting
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