remoting/base/util_unittest.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include <algorithm>
   6
   7 #include "remoting/base/util.h"
   8 #include "testing/gtest/include/gtest/gtest.h"
   9 #include "third_party/webrtc/modules/desktop_capture/desktop_geometry.h"
  10
  11 namespace remoting {
  12
  13 TEST(ReplaceLfByCrLfTest, Basic) {
  14   EXPECT_EQ("ab", ReplaceLfByCrLf("ab"));
  15   EXPECT_EQ("\r\nab", ReplaceLfByCrLf("\nab"));
  16   EXPECT_EQ("\r\nab\r\n", ReplaceLfByCrLf("\nab\n"));
  17   EXPECT_EQ("\r\nab\r\ncd", ReplaceLfByCrLf("\nab\ncd"));
  18   EXPECT_EQ("\r\nab\r\ncd\r\n", ReplaceLfByCrLf("\nab\ncd\n"));
  19   EXPECT_EQ("\r\n\r\nab\r\n\r\ncd\r\n\r\n",
  20       ReplaceLfByCrLf("\n\nab\n\ncd\n\n"));
  21 }
  22
  23 TEST(ReplaceLfByCrLfTest, Speed) {
  24   int kLineSize = 128;
  25   std::string line(kLineSize, 'a');
  26   line[kLineSize - 1] = '\n';
  27   // Make a 10M string.
  28   int kLineNum = 10 * 1024 * 1024 / kLineSize;
  29   std::string buffer;
  30   buffer.resize(kLineNum * kLineSize);
  31   for (int i = 0; i < kLineNum; ++i) {
  32     memcpy(&buffer[i * kLineSize], &line[0], kLineSize);
  33   }
  34   // Convert the string.
  35   buffer = ReplaceLfByCrLf(buffer);
  36   // Check the converted string.
  37   EXPECT_EQ(static_cast<size_t>((kLineSize + 1) * kLineNum), buffer.size());
  38   const char* p = &buffer[0];
  39   for (int i = 0; i < kLineNum; ++i) {
  40     EXPECT_EQ(0, memcmp(&line[0], p, kLineSize - 1));
  41     p += kLineSize - 1;
  42     EXPECT_EQ('\r', *p++);
  43     EXPECT_EQ('\n', *p++);
  44   }
  45 }
  46
  47 TEST(ReplaceCrLfByLfTest, Basic) {
  48   EXPECT_EQ("ab", ReplaceCrLfByLf("ab"));
  49   EXPECT_EQ("\nab", ReplaceCrLfByLf("\r\nab"));
  50   EXPECT_EQ("\nab\n", ReplaceCrLfByLf("\r\nab\r\n"));
  51   EXPECT_EQ("\nab\ncd", ReplaceCrLfByLf("\r\nab\r\ncd"));
  52   EXPECT_EQ("\nab\ncd\n", ReplaceCrLfByLf("\r\nab\r\ncd\n"));
  53   EXPECT_EQ("\n\nab\n\ncd\n\n",
  54       ReplaceCrLfByLf("\r\n\r\nab\r\n\r\ncd\r\n\r\n"));
  55   EXPECT_EQ("\rab\rcd\r", ReplaceCrLfByLf("\rab\rcd\r"));
  56 }
  57
  58 TEST(ReplaceCrLfByLfTest, Speed) {
  59   int kLineSize = 128;
  60   std::string line(kLineSize, 'a');
  61   line[kLineSize - 2] = '\r';
  62   line[kLineSize - 1] = '\n';
  63   // Make a 10M string.
  64   int kLineNum = 10 * 1024 * 1024 / kLineSize;
  65   std::string buffer;
  66   buffer.resize(kLineNum * kLineSize);
  67   for (int i = 0; i < kLineNum; ++i) {
  68     memcpy(&buffer[i * kLineSize], &line[0], kLineSize);
  69   }
  70   // Convert the string.
  71   buffer = ReplaceCrLfByLf(buffer);
  72   // Check the converted string.
  73   EXPECT_EQ(static_cast<size_t>((kLineSize - 1) * kLineNum), buffer.size());
  74   const char* p = &buffer[0];
  75   for (int i = 0; i < kLineNum; ++i) {
  76     EXPECT_EQ(0, memcmp(&line[0], p, kLineSize - 2));
  77     p += kLineSize - 2;
  78     EXPECT_EQ('\n', *p++);
  79   }
  80 }
  81
  82 TEST(StringIsUtf8Test, Basic) {
  83   EXPECT_TRUE(StringIsUtf8("", 0));
  84   EXPECT_TRUE(StringIsUtf8("\0", 1));
  85   EXPECT_TRUE(StringIsUtf8("abc", 3));
  86   EXPECT_TRUE(StringIsUtf8("\xc0\x80", 2));
  87   EXPECT_TRUE(StringIsUtf8("\xe0\x80\x80", 3));
  88   EXPECT_TRUE(StringIsUtf8("\xf0\x80\x80\x80", 4));
  89   EXPECT_TRUE(StringIsUtf8("\xf8\x80\x80\x80\x80", 5));
  90   EXPECT_TRUE(StringIsUtf8("\xfc\x80\x80\x80\x80\x80", 6));
  91
  92   // Not enough continuation characters
  93   EXPECT_FALSE(StringIsUtf8("\xc0", 1));
  94   EXPECT_FALSE(StringIsUtf8("\xe0\x80", 2));
  95   EXPECT_FALSE(StringIsUtf8("\xf0\x80\x80", 3));
  96   EXPECT_FALSE(StringIsUtf8("\xf8\x80\x80\x80", 4));
  97   EXPECT_FALSE(StringIsUtf8("\xfc\x80\x80\x80\x80", 5));
  98
  99   // One more continuation character than needed
 100   EXPECT_FALSE(StringIsUtf8("\xc0\x80\x80", 3));
 101   EXPECT_FALSE(StringIsUtf8("\xe0\x80\x80\x80", 4));
 102   EXPECT_FALSE(StringIsUtf8("\xf0\x80\x80\x80\x80", 5));
 103   EXPECT_FALSE(StringIsUtf8("\xf8\x80\x80\x80\x80\x80", 6));
 104   EXPECT_FALSE(StringIsUtf8("\xfc\x80\x80\x80\x80\x80\x80", 7));
 105
 106   // Invalid first byte
 107   EXPECT_FALSE(StringIsUtf8("\xfe\x80\x80\x80\x80\x80\x80", 7));
 108   EXPECT_FALSE(StringIsUtf8("\xff\x80\x80\x80\x80\x80\x80", 7));
 109
 110   // Invalid continuation byte
 111   EXPECT_FALSE(StringIsUtf8("\xc0\x00", 2));
 112   EXPECT_FALSE(StringIsUtf8("\xc0\x40", 2));
 113   EXPECT_FALSE(StringIsUtf8("\xc0\xc0", 2));
 114 }
 115
 116 }  // namespace remoting