[Chromoting] Handle CR-LF correctly when transferring text items to and from the clipboard on a Win…

remoting/base/util_unittest.cc

 // 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 <algorithm>
 
 #include "remoting/base/util.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "third_party/skia/include/core/SkRect.h"
 #include "third_party/skia/include/core/SkSize.h"
@@ skipping 166 matching lines @@
       dest_rect.fTop += 1;
     if ((i & 4) != 0)
       dest_rect.fRight += 1;
     if ((i & 8) != 0)
       dest_rect.fBottom += 1;
 
     tester.RunTest(dest_size, dest_rect);
   }
 }
 
+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++);
+  }
+}
+
 }  // namespace remoting