Use v8's utf8 <-> wide conversion for Linux sys_string_conversion.

base/sys_string_conversions_unittest.cc

 // Copyright (c) 2006-2008 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 <locale.h>
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/string_piece.h"
@@ skipping 159 matching lines @@
   L"\xd800\xdf00",
   // ?????  (Mathematical Alphanumeric Symbols (U+011d40 - U+011d44 : A,B,C,D,E)
   L"\xd807\xdd40\xd807\xdd41\xd807\xdd42\xd807\xdd43\xd807\xdd44",
 #elif defined(WCHAR_T_IS_UTF32)
   L"\x10300",
   // ?????  (Mathematical Alphanumeric Symbols (U+011d40 - U+011d44 : A,B,C,D,E)
   L"\x11d40\x11d41\x11d42\x11d43\x11d44",
 #endif
 };
 
+TEST(SysStrings, SysWideAndUtf8) {
+  // Should not depend on the locale.
+  for (size_t i = 0; i < arraysize(kConvertRoundtripCases); ++i) {
+    std::wstring wide = kConvertRoundtripCases[i];
+    std::wstring trip = base::SysUTF8ToWide(base::SysWideToUTF8(wide));
+    EXPECT_EQ(wide.size(), trip.size());
+    EXPECT_EQ(wide, trip);
+  }
+}
+
+TEST(SysStrings, SysInvalidUtf8) {
+  EXPECT_EQ(1U, base::SysUTF8ToWide("\xc2\x80").size());  // Valid.
+  EXPECT_EQ(0U, base::SysUTF8ToWide("\x80").size());
+  EXPECT_EQ(3U, base::SysUTF8ToWide("abc").size());  // Valid.
+  EXPECT_EQ(0U, base::SysUTF8ToWide("abc\x80").size());
+  EXPECT_EQ(0U, base::SysUTF8ToWide("\xc0""aaaaaaaaa").size());
+  EXPECT_EQ(0U, base::SysUTF8ToWide("\xf5""aaaaaaaaa").size());
+  EXPECT_EQ(0U, base::SysUTF8ToWide("\xfe""aaaaaaaaa").size());
+}
 
 TEST(SysStrings, SysNativeMBAndWide) {
   ScopedSetLocale locale("en_US.utf-8");
   for (size_t i = 0; i < arraysize(kConvertRoundtripCases); ++i) {
     std::wstring wide = kConvertRoundtripCases[i];
     std::wstring trip = base::SysNativeMBToWide(base::SysWideToNativeMB(wide));
     EXPECT_EQ(wide.size(), trip.size());
     EXPECT_EQ(wide, trip);
   }
 
   // We assume our test is running in UTF-8, so double check through ICU.
   for (size_t i = 0; i < arraysize(kConvertRoundtripCases); ++i) {
     std::wstring wide = kConvertRoundtripCases[i];
     std::wstring trip = base::SysNativeMBToWide(WideToUTF8(wide));
     EXPECT_EQ(wide.size(), trip.size());
     EXPECT_EQ(wide, trip);
   }
 
   for (size_t i = 0; i < arraysize(kConvertRoundtripCases); ++i) {
     std::wstring wide = kConvertRoundtripCases[i];
     std::wstring trip = UTF8ToWide(base::SysWideToNativeMB(wide));
     EXPECT_EQ(wide.size(), trip.size());
     EXPECT_EQ(wide, trip);
   }
 }
 #endif  // OS_LINUX