Move base to DEPS

base/i18n/icu_string_conversions_unittest.cc

-// Copyright (c) 2011 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 <math.h>
-#include <stdarg.h>
-
-#include <limits>
-#include <sstream>
-
-#include "base/basictypes.h"
-#include "base/format_macros.h"
-#include "base/i18n/icu_string_conversions.h"
-#include "base/logging.h"
-#include "base/strings/string_piece.h"
-#include "base/strings/stringprintf.h"
-#include "base/strings/utf_string_conversions.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-namespace base {
-
-namespace {
-
-// Given a null-terminated string of wchar_t with each wchar_t representing
-// a UTF-16 code unit, returns a string16 made up of wchar_t's in the input.
-// Each wchar_t should be <= 0xFFFF and a non-BMP character (> U+FFFF)
-// should be represented as a surrogate pair (two UTF-16 units)
-// *even* where wchar_t is 32-bit (Linux and Mac).
-//
-// This is to help write tests for functions with string16 params until
-// the C++ 0x UTF-16 literal is well-supported by compilers.
-string16 BuildString16(const wchar_t* s) {
-#if defined(WCHAR_T_IS_UTF16)
-  return string16(s);
-#elif defined(WCHAR_T_IS_UTF32)
-  string16 u16;
-  while (*s != 0) {
-    DCHECK_LE(static_cast<unsigned int>(*s), 0xFFFFu);
-    u16.push_back(*s++);
-  }
-  return u16;
-#endif
-}
-
-}  // namespace
-
-// kConverterCodepageCases is not comprehensive. There are a number of cases
-// to add if we really want to have a comprehensive coverage of various
-// codepages and their 'idiosyncrasies'. Currently, the only implementation
-// for CodepageTo* and *ToCodepage uses ICU, which has a very extensive
-// set of tests for the charset conversion. So, we can get away with a
-// relatively small number of cases listed below.
-//
-// Note about |u16_wide| in the following struct.
-// On Windows, the field is always identical to |wide|. On Mac and Linux,
-// it's identical as long as there's no character outside the
-// BMP (<= U+FFFF). When there is, it is different from |wide| and
-// is not a real wide string (UTF-32 string) in that each wchar_t in
-// the string is a UTF-16 code unit zero-extended to be 32-bit
-// even when the code unit belongs to a surrogate pair.
-// For instance, a Unicode string (U+0041 U+010000) is represented as
-// L"\x0041\xD800\xDC00" instead of L"\x0041\x10000".
-// To avoid the clutter, |u16_wide| will be set to NULL
-// if it's identical to |wide| on *all* platforms.
-
-static const struct {
-  const char* codepage_name;
-  const char* encoded;
-  OnStringConversionError::Type on_error;
-  bool success;
-  const wchar_t* wide;
-  const wchar_t* u16_wide;
-} kConvertCodepageCases[] = {
-  // Test a case where the input cannot be decoded, using SKIP, FAIL
-  // and SUBSTITUTE error handling rules. "A7 41" is valid, but "A6" isn't.
-  {"big5",
-   "\xA7\x41\xA6",
-   OnStringConversionError::FAIL,
-   false,
-   L"",
-   NULL},
-  {"big5",
-   "\xA7\x41\xA6",
-   OnStringConversionError::SKIP,
-   true,
-   L"\x4F60",
-   NULL},
-  {"big5",
-   "\xA7\x41\xA6",
-   OnStringConversionError::SUBSTITUTE,
-   true,
-   L"\x4F60\xFFFD",
-   NULL},
-  // Arabic (ISO-8859)
-  {"iso-8859-6",
-   "\xC7\xEE\xE4\xD3\xF1\xEE\xE4\xC7\xE5\xEF" " "
-   "\xD9\xEE\xE4\xEE\xEA\xF2\xE3\xEF\xE5\xF2",
-   OnStringConversionError::FAIL,
-   true,
-   L"\x0627\x064E\x0644\x0633\x0651\x064E\x0644\x0627\x0645\x064F" L" "
-   L"\x0639\x064E\x0644\x064E\x064A\x0652\x0643\x064F\x0645\x0652",
-   NULL},
-  // Chinese Simplified (GB2312)
-  {"gb2312",
-   "\xC4\xE3\xBA\xC3",
-   OnStringConversionError::FAIL,
-   true,
-   L"\x4F60\x597D",
-   NULL},
-  // Chinese (GB18030) : 4 byte sequences mapped to BMP characters
-  {"gb18030",
-   "\x81\x30\x84\x36\xA1\xA7",
-   OnStringConversionError::FAIL,
-   true,
-   L"\x00A5\x00A8",
-   NULL},
-  // Chinese (GB18030) : A 4 byte sequence mapped to plane 2 (U+20000)
-  {"gb18030",
-   "\x95\x32\x82\x36\xD2\xBB",
-   OnStringConversionError::FAIL,
-   true,
-#if defined(WCHAR_T_IS_UTF16)
-   L"\xD840\xDC00\x4E00",
-#elif defined(WCHAR_T_IS_UTF32)
-   L"\x20000\x4E00",
-#endif
-   L"\xD840\xDC00\x4E00"},
-  {"big5",
-   "\xA7\x41\xA6\x6E",
-   OnStringConversionError::FAIL,
-   true,
-   L"\x4F60\x597D",
-   NULL},
-  // Greek (ISO-8859)
-  {"iso-8859-7",
-   "\xE3\xE5\xE9\xDC" " " "\xF3\xEF\xF5",
-   OnStringConversionError::FAIL,
-   true,
-   L"\x03B3\x03B5\x03B9\x03AC" L" " L"\x03C3\x03BF\x03C5",
-   NULL},
-  // Hebrew (Windows)
-  {"windows-1255",
-   "\xF9\xD1\xC8\xEC\xE5\xC9\xED",
-   OnStringConversionError::FAIL,
-   true,
-   L"\x05E9\x05C1\x05B8\x05DC\x05D5\x05B9\x05DD",
-   NULL},
-  // Korean (EUC)
-  {"euc-kr",
-   "\xBE\xC8\xB3\xE7\xC7\xCF\xBC\xBC\xBF\xE4",
-   OnStringConversionError::FAIL,
-   true,
-   L"\xC548\xB155\xD558\xC138\xC694",
-   NULL},
-  // Japanese (EUC)
-  {"euc-jp",
-   "\xA4\xB3\xA4\xF3\xA4\xCB\xA4\xC1\xA4\xCF\xB0\xEC\x8E\xA6",
-   OnStringConversionError::FAIL,
-   true,
-   L"\x3053\x3093\x306B\x3061\x306F\x4E00\xFF66",
-   NULL},
-  // Japanese (ISO-2022)
-  {"iso-2022-jp",
-   "\x1B$B" "\x24\x33\x24\x73\x24\x4B\x24\x41\x24\x4F\x30\x6C" "\x1B(B"
-   "ab" "\x1B(J" "\x5C\x7E#$" "\x1B(B",
-   OnStringConversionError::FAIL,
-   true,
-   L"\x3053\x3093\x306B\x3061\x306F\x4E00" L"ab\x00A5\x203E#$",
-   NULL},
-  // Japanese (Shift-JIS)
-  {"sjis",
-   "\x82\xB1\x82\xF1\x82\xC9\x82\xBF\x82\xCD\x88\xEA\xA6",
-   OnStringConversionError::FAIL,
-   true,
-   L"\x3053\x3093\x306B\x3061\x306F\x4E00\xFF66",
-   NULL},
-  // Russian (KOI8)
-  {"koi8-r",
-   "\xDA\xC4\xD2\xC1\xD7\xD3\xD4\xD7\xD5\xCA\xD4\xC5",
-   OnStringConversionError::FAIL,
-   true,
-   L"\x0437\x0434\x0440\x0430\x0432\x0441\x0442\x0432"
-   L"\x0443\x0439\x0442\x0435",
-   NULL},
-  // Thai (windows-874)
-  {"windows-874",
-   "\xCA\xC7\xD1\xCA\xB4\xD5" "\xA4\xC3\xD1\xBA",
-   OnStringConversionError::FAIL,
-   true,
-   L"\x0E2A\x0E27\x0E31\x0E2A\x0E14\x0E35"
-   L"\x0E04\x0E23\x0e31\x0E1A",
-   NULL},
-};
-
-TEST(ICUStringConversionsTest, ConvertBetweenCodepageAndUTF16) {
-  for (size_t i = 0; i < arraysize(kConvertCodepageCases); ++i) {
-    SCOPED_TRACE(base::StringPrintf(
-                     "Test[%" PRIuS "]: <encoded: %s> <codepage: %s>", i,
-                     kConvertCodepageCases[i].encoded,
-                     kConvertCodepageCases[i].codepage_name));
-
-    string16 utf16;
-    bool success = CodepageToUTF16(kConvertCodepageCases[i].encoded,
-                                   kConvertCodepageCases[i].codepage_name,
-                                   kConvertCodepageCases[i].on_error,
-                                   &utf16);
-    string16 utf16_expected;
-    if (kConvertCodepageCases[i].u16_wide == NULL)
-      utf16_expected = BuildString16(kConvertCodepageCases[i].wide);
-    else
-      utf16_expected = BuildString16(kConvertCodepageCases[i].u16_wide);
-    EXPECT_EQ(kConvertCodepageCases[i].success, success);
-    EXPECT_EQ(utf16_expected, utf16);
-
-    // When decoding was successful and nothing was skipped, we also check the
-    // reverse conversion. See also the corresponding comment in
-    // ConvertBetweenCodepageAndWide.
-    if (success &&
-        kConvertCodepageCases[i].on_error == OnStringConversionError::FAIL) {
-      std::string encoded;
-      success = UTF16ToCodepage(utf16, kConvertCodepageCases[i].codepage_name,
-                                kConvertCodepageCases[i].on_error, &encoded);
-      EXPECT_EQ(kConvertCodepageCases[i].success, success);
-      EXPECT_EQ(kConvertCodepageCases[i].encoded, encoded);
-    }
-  }
-}
-
-static const struct {
-  const char* encoded;
-  const char* codepage_name;
-  bool expected_success;
-  const char* expected_value;
-} kConvertAndNormalizeCases[] = {
-  {"foo-\xe4.html", "iso-8859-1", true, "foo-\xc3\xa4.html"},
-  {"foo-\xe4.html", "iso-8859-7", true, "foo-\xce\xb4.html"},
-  {"foo-\xe4.html", "foo-bar", false, ""},
-  // HTML Encoding spec treats US-ASCII as synonymous with windows-1252
-  {"foo-\xff.html", "ascii", true, "foo-\xc3\xbf.html"},
-  {"foo.html", "ascii", true, "foo.html"},
-  {"foo-a\xcc\x88.html", "utf-8", true, "foo-\xc3\xa4.html"},
-  {"\x95\x32\x82\x36\xD2\xBB", "gb18030", true, "\xF0\xA0\x80\x80\xE4\xB8\x80"},
-  {"\xA7\x41\xA6\x6E", "big5", true, "\xE4\xBD\xA0\xE5\xA5\xBD"},
-  // Windows-1258 does have a combining character at xD2 (which is U+0309).
-  // The sequence of (U+00E2, U+0309) is also encoded as U+1EA9.
-  {"foo\xE2\xD2", "windows-1258", true, "foo\xE1\xBA\xA9"},
-  {"", "iso-8859-1", true, ""},
-};
-TEST(ICUStringConversionsTest, ConvertToUtf8AndNormalize) {
-  std::string result;
-  for (size_t i = 0; i < arraysize(kConvertAndNormalizeCases); ++i) {
-    SCOPED_TRACE(base::StringPrintf(
-                     "Test[%" PRIuS "]: <encoded: %s> <codepage: %s>", i,
-                     kConvertAndNormalizeCases[i].encoded,
-                     kConvertAndNormalizeCases[i].codepage_name));
-
-    bool success = ConvertToUtf8AndNormalize(
-        kConvertAndNormalizeCases[i].encoded,
-        kConvertAndNormalizeCases[i].codepage_name, &result);
-    EXPECT_EQ(kConvertAndNormalizeCases[i].expected_success, success);
-    EXPECT_EQ(kConvertAndNormalizeCases[i].expected_value, result);
-  }
-}
-
-}  // namespace base