Move the spellcheck unittest into browser next to the file

chrome/renderer/spellcheck_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 "webkit/glue/webkit_glue.h"
-
-#include "base/file_util.h"
-#include "base/message_loop.h"
-#include "base/path_service.h"
-#include "chrome/browser/spellchecker.h"
-#include "chrome/common/chrome_paths.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-namespace {
-class SpellCheckTest : public testing::Test {
- private:
-  MessageLoop message_loop_;
-};
-
-const std::wstring kTempCustomDictionaryFile(L"temp_custom_dictionary.txt");
-
-}  // namespace
-
-// Represents a special initialization function used only for the unit tests
-// in this file.
-extern void InitHunspellWithFiles(FILE* file_aff_hunspell,
-                                  FILE* file_dic_hunspell);
-
-// Operates unit tests for the webkit_glue::SpellCheckWord() function
-// with the US English dictionary.
-// The unit tests in this function consist of:
-//   * Tests for the function with empty strings;
-//   * Tests for the function with a valid English word;
-//   * Tests for the function with a valid non-English word;
-//   * Tests for the function with a valid English word with a preceding
-//     space character;
-//   * Tests for the function with a valid English word with a preceding
-//     non-English word;
-//   * Tests for the function with a valid English word with a following
-//     space character;
-//   * Tests for the function with a valid English word with a following
-//     non-English word;
-//   * Tests for the function with two valid English words concatenated
-//     with space characters or non-English words;
-//   * Tests for the function with an invalid English word;
-//   * Tests for the function with an invalid English word with a preceding
-//     space character;
-//   * Tests for the function with an invalid English word with a preceding
-//     non-English word;
-//   * Tests for the function with2 an invalid English word with a following
-//     space character;
-//   * Tests for the function with an invalid English word with a following
-//     non-English word, and;
-//   * Tests for the function with two invalid English words concatenated
-//     with space characters or non-English words.
-// A test with a "[ROBUSTNESS]" mark shows it is a robustness test and it uses
-// grammartically incorrect string.
-// TODO(hbono): Please feel free to add more tests.
-TEST_F(SpellCheckTest, SpellCheckStrings_EN_US) {
-  static const struct {
-    // A string to be tested.
-    const wchar_t* input;
-    // An expected result for this test case.
-    //   * true: the input string does not have any invalid words.
-    //   * false: the input string has one or more invalid words.
-    bool expected_result;
-    // The position and the length of the first invalid word.
-    int misspelling_start;
-    int misspelling_length;
-  } kTestCases[] = {
-    // Empty strings.
-    {NULL, true, 0, 0},
-    {L"", true, 0, 0},
-    {L" ", true, 0, 0},
-    {L"\xA0", true, 0, 0},
-    {L"\x3000", true, 0, 0},
-
-    // A valid English word "hello".
-    {L"hello", true, 0, 0},
-    // A valid Chinese word (meaning "hello") consisiting of two CJKV
-    // ideographs
-    {L"\x4F60\x597D", true, 0, 0},
-    // A valid Korean word (meaning "hello") consisting of five hangul
-    // syllables
-    {L"\xC548\xB155\xD558\xC138\xC694", true, 0, 0},
-    // A valid Japanese word (meaning "hello") consisting of five Hiragana
-    // letters
-    {L"\x3053\x3093\x306B\x3061\x306F", true, 0, 0},
-    // A valid Hindi word (meaning ?) consisting of six Devanagari letters
-    // (This word is copied from "http://b/issue?id=857583".)
-    {L"\x0930\x093E\x091C\x0927\x093E\x0928", true, 0, 0},
-    // A valid English word "affix" using a Latin ligature 'ffi'
-    {L"a\xFB03x", true, 0, 0},
-    // A valid English word "hello" (fullwidth version)
-    {L"\xFF28\xFF45\xFF4C\xFF4C\xFF4F", true, 0, 0},
-    // Two valid Greek words (meaning "hello") consisting of seven Greek
-    // letters
-    {L"\x03B3\x03B5\x03B9\x03AC" L" " L"\x03C3\x03BF\x03C5", true, 0, 0},
-    // A valid Russian word (meainng "hello") consisting of twelve Cyrillic
-    // letters
-    {L"\x0437\x0434\x0440\x0430\x0432\x0441"
-     L"\x0442\x0432\x0443\x0439\x0442\x0435", true, 0, 0},
-    // A valid English contraction
-    {L"isn't", true, 0, 0},
-    // A valid English word enclosed with underscores.
-    {L"_hello_", true, 0, 0},
-
-    // A valid English word with a preceding whitespace
-    {L" " L"hello", true, 0, 0},
-    // A valid English word with a preceding no-break space
-    {L"\xA0" L"hello", true, 0, 0},
-    // A valid English word with a preceding ideographic space
-    {L"\x3000" L"hello", true, 0, 0},
-    // A valid English word with a preceding Chinese word
-    {L"\x4F60\x597D" L"hello", true, 0, 0},
-    // [ROBUSTNESS] A valid English word with a preceding Korean word
-    {L"\xC548\xB155\xD558\xC138\xC694" L"hello", true, 0, 0},
-    // A valid English word with a preceding Japanese word
-    {L"\x3053\x3093\x306B\x3061\x306F" L"hello", true, 0, 0},
-    // [ROBUSTNESS] A valid English word with a preceding Hindi word
-    {L"\x0930\x093E\x091C\x0927\x093E\x0928" L"hello", true, 0, 0},
-    // [ROBUSTNESS] A valid English word with two preceding Greek words
-    {L"\x03B3\x03B5\x03B9\x03AC" L" " L"\x03C3\x03BF\x03C5"
-     L"hello", true, 0, 0},
-    // [ROBUSTNESS] A valid English word with a preceding Russian word
-    {L"\x0437\x0434\x0440\x0430\x0432\x0441"
-     L"\x0442\x0432\x0443\x0439\x0442\x0435" L"hello", true, 0, 0},
-
-    // A valid English word with a following whitespace
-    {L"hello" L" ", true, 0, 0},
-    // A valid English word with a following no-break space
-    {L"hello" L"\xA0", true, 0, 0},
-    // A valid English word with a following ideographic space
-    {L"hello" L"\x3000", true, 0, 0},
-    // A valid English word with a following Chinese word
-    {L"hello" L"\x4F60\x597D", true, 0, 0},
-    // [ROBUSTNESS] A valid English word with a following Korean word
-    {L"hello" L"\xC548\xB155\xD558\xC138\xC694", true, 0, 0},
-    // A valid English word with a following Japanese word
-    {L"hello" L"\x3053\x3093\x306B\x3061\x306F", true, 0, 0},
-    // [ROBUSTNESS] A valid English word with a following Hindi word
-    {L"hello" L"\x0930\x093E\x091C\x0927\x093E\x0928", true, 0, 0},
-    // [ROBUSTNESS] A valid English word with two following Greek words
-    {L"hello"
-     L"\x03B3\x03B5\x03B9\x03AC" L" " L"\x03C3\x03BF\x03C5", true, 0, 0},
-    // [ROBUSTNESS] A valid English word with a following Russian word
-    {L"hello" L"\x0437\x0434\x0440\x0430\x0432\x0441"
-     L"\x0442\x0432\x0443\x0439\x0442\x0435", true, 0, 0},
-
-    // Two valid English words concatenated with a whitespace
-    {L"hello" L" " L"hello", true, 0, 0},
-    // Two valid English words concatenated with a no-break space
-    {L"hello" L"\xA0" L"hello", true, 0, 0},
-    // Two valid English words concatenated with an ideographic space
-    {L"hello" L"\x3000" L"hello", true, 0, 0},
-    // Two valid English words concatenated with a Chinese word
-    {L"hello" L"\x4F60\x597D" L"hello", true, 0, 0},
-    // [ROBUSTNESS] Two valid English words concatenated with a Korean word
-    {L"hello" L"\xC548\xB155\xD558\xC138\xC694" L"hello", true, 0, 0},
-    // Two valid English words concatenated with a Japanese word
-    {L"hello" L"\x3053\x3093\x306B\x3061\x306F" L"hello", true, 0, 0},
-    // [ROBUSTNESS] Two valid English words concatenated with a Hindi word
-    {L"hello" L"\x0930\x093E\x091C\x0927\x093E\x0928" L"hello" , true, 0, 0},
-    // [ROBUSTNESS] Two valid English words concatenated with two Greek words
-    {L"hello" L"\x03B3\x03B5\x03B9\x03AC" L" " L"\x03C3\x03BF\x03C5"
-     L"hello", true, 0, 0},
-    // [ROBUSTNESS] Two valid English words concatenated with a Russian word
-    {L"hello" L"\x0437\x0434\x0440\x0430\x0432\x0441"
-     L"\x0442\x0432\x0443\x0439\x0442\x0435" L"hello", true, 0, 0},
-    // [ROBUSTNESS] Two valid English words concatenated with a contraction
-    // character.
-    {L"hello:hello", true, 0, 0},
-
-    // An invalid English word
-    {L"ifmmp", false, 0, 5},
-    // An invalid English word "bffly" containing a Latin ligature 'ffl'
-    {L"b\xFB04y", false, 0, 3},
-    // An invalid English word "ifmmp" (fullwidth version)
-    {L"\xFF29\xFF46\xFF4D\xFF4D\xFF50", false, 0, 5},
-    // An invalid English contraction
-    {L"jtm'u", false, 0, 5},
-    // An invalid English word enclosed with underscores.
-    {L"_ifmmp_", false, 1, 5},
-
-    // An invalid English word with a preceding whitespace
-    {L" " L"ifmmp", false, 1, 5},
-    // An invalid English word with a preceding no-break space
-    {L"\xA0" L"ifmmp", false, 1, 5},
-    // An invalid English word with a preceding ideographic space
-    {L"\x3000" L"ifmmp", false, 1, 5},
-    // An invalid English word with a preceding Chinese word
-    {L"\x4F60\x597D" L"ifmmp", false, 2, 5},
-    // [ROBUSTNESS] An invalid English word with a preceding Korean word
-    {L"\xC548\xB155\xD558\xC138\xC694" L"ifmmp", false, 5, 5},
-    // An invalid English word with a preceding Japanese word
-    {L"\x3053\x3093\x306B\x3061\x306F" L"ifmmp", false, 5, 5},
-    // [ROBUSTNESS] An invalid English word with a preceding Hindi word
-    {L"\x0930\x093E\x091C\x0927\x093E\x0928" L"ifmmp", false, 6, 5},
-    // [ROBUSTNESS] An invalid English word with two preceding Greek words
-    {L"\x03B3\x03B5\x03B9\x03AC" L" " L"\x03C3\x03BF\x03C5"
-     L"ifmmp", false, 8, 5},
-    // [ROBUSTNESS] An invalid English word with a preceding Russian word
-    {L"\x0437\x0434\x0440\x0430\x0432\x0441"
-     L"\x0442\x0432\x0443\x0439\x0442\x0435" L"ifmmp", false, 12, 5},
-
-    // An invalid English word with a following whitespace
-    {L"ifmmp" L" ", false, 0, 5},
-    // An invalid English word with a following no-break space
-    {L"ifmmp" L"\xA0", false, 0, 5},
-    // An invalid English word with a following ideographic space
-    {L"ifmmp" L"\x3000", false, 0, 5},
-    // An invalid English word with a following Chinese word
-    {L"ifmmp" L"\x4F60\x597D", false, 0, 5},
-    // [ROBUSTNESS] An invalid English word with a following Korean word
-    {L"ifmmp" L"\xC548\xB155\xD558\xC138\xC694", false, 0, 5},
-    // An invalid English word with a following Japanese word
-    {L"ifmmp" L"\x3053\x3093\x306B\x3061\x306F", false, 0, 5},
-    // [ROBUSTNESS] An invalid English word with a following Hindi word
-    {L"ifmmp" L"\x0930\x093E\x091C\x0927\x093E\x0928", false, 0, 5},
-    // [ROBUSTNESS] An invalid English word with two following Greek words
-    {L"ifmmp"
-     L"\x03B3\x03B5\x03B9\x03AC" L" " L"\x03C3\x03BF\x03C5", false, 0, 5},
-    // [ROBUSTNESS] An invalid English word with a following Russian word
-    {L"ifmmp" L"\x0437\x0434\x0440\x0430\x0432\x0441"
-     L"\x0442\x0432\x0443\x0439\x0442\x0435", false, 0, 5},
-
-    // Two invalid English words concatenated with a whitespace
-    {L"ifmmp" L" " L"ifmmp", false, 0, 5},
-    // Two invalid English words concatenated with a no-break space
-    {L"ifmmp" L"\xA0" L"ifmmp", false, 0, 5},
-    // Two invalid English words concatenated with an ideographic space
-    {L"ifmmp" L"\x3000" L"ifmmp", false, 0, 5},
-    // Two invalid English words concatenated with a Chinese word
-    {L"ifmmp" L"\x4F60\x597D" L"ifmmp", false, 0, 5},
-    // [ROBUSTNESS] Two invalid English words concatenated with a Korean word
-    {L"ifmmp" L"\xC548\xB155\xD558\xC138\xC694" L"ifmmp", false, 0, 5},
-    // Two invalid English words concatenated with a Japanese word
-    {L"ifmmp" L"\x3053\x3093\x306B\x3061\x306F" L"ifmmp", false, 0, 5},
-    // [ROBUSTNESS] Two invalid English words concatenated with a Hindi word
-    {L"ifmmp" L"\x0930\x093E\x091C\x0927\x093E\x0928" L"ifmmp" , false, 0, 5},
-    // [ROBUSTNESS] Two invalid English words concatenated with two Greek words
-    {L"ifmmp" L"\x03B3\x03B5\x03B9\x03AC" L" " L"\x03C3\x03BF\x03C5"
-     L"ifmmp", false, 0, 5},
-    // [ROBUSTNESS] Two invalid English words concatenated with a Russian word
-    {L"ifmmp" L"\x0437\x0434\x0440\x0430\x0432\x0441"
-     L"\x0442\x0432\x0443\x0439\x0442\x0435" L"ifmmp", false, 0, 5},
-    // [ROBUSTNESS] Two invalid English words concatenated with a contraction
-    // character.
-    {L"ifmmp:ifmmp", false, 0, 11},
-  };
-
-  std::wstring hunspell_directory;
-  ASSERT_TRUE(PathService::Get(chrome::DIR_APP_DICTIONARIES,
-                               &hunspell_directory));
-
-  scoped_refptr<SpellChecker> spell_checker(new SpellChecker(
-      hunspell_directory, L"en-US", NULL, L""));
-
-  for (int i = 0; i < arraysize(kTestCases); i++) {
-    size_t input_length = 0;
-    if (kTestCases[i].input != NULL) {
-      input_length = wcslen(kTestCases[i].input);
-    }
-    int misspelling_start;
-    int misspelling_length;
-    bool result = spell_checker->SpellCheckWord(kTestCases[i].input,
-                                                static_cast<int>(input_length),
-                                                &misspelling_start,
-                                                &misspelling_length, NULL);
-
-    EXPECT_EQ(result, kTestCases[i].expected_result);
-    EXPECT_EQ(misspelling_start, kTestCases[i].misspelling_start);
-    EXPECT_EQ(misspelling_length, kTestCases[i].misspelling_length);
-  }
-}
-
-
-TEST_F(SpellCheckTest, SpellCheckSuggestions_EN_US) {
-  static const struct {
-    // A string to be tested.
-    const wchar_t* input;
-    // An expected result for this test case.
-    //   * true: the input string does not have any invalid words.
-    //   * false: the input string has one or more invalid words.
-    bool expected_result;
-    // The position and the length of the first invalid word.
-    int misspelling_start;
-    int misspelling_length;
-
-    // A suggested word that should occur.
-    const wchar_t* suggested_word;
-  } kTestCases[] = {    // A valid English word with a preceding whitespace
-    {L"ello", false, 0, 0, L"hello"},
-    {L"ello", false, 0, 0, L"cello"},
-    {L"wate", false, 0, 0, L"water"},
-    {L"wate", false, 0, 0, L"waste"},
-    {L"wate", false, 0, 0, L"sate"},
-    {L"wate", false, 0, 0, L"rate"},
-    {L"jum", false, 0, 0, L"jump"},
-    {L"jum", false, 0, 0, L"rum"},
-    {L"jum", false, 0, 0, L"sum"},
-    {L"jum", false, 0, 0, L"tum"},
-    // TODO (Sidchat): add many more examples.
-  };
-
-  std::wstring hunspell_directory;
-  ASSERT_TRUE(PathService::Get(chrome::DIR_APP_DICTIONARIES,
-                               &hunspell_directory));
-
-  scoped_refptr<SpellChecker> spell_checker(new SpellChecker(
-      hunspell_directory, L"en-US", NULL, L""));
-
-  for (int i = 0; i < arraysize(kTestCases); i++) {
-    std::vector<std::wstring> suggestions;
-    size_t input_length = 0;
-    if (kTestCases[i].input != NULL) {
-      input_length = wcslen(kTestCases[i].input);
-    }
-    int misspelling_start;
-    int misspelling_length;
-    bool result = spell_checker->SpellCheckWord(kTestCases[i].input,
-                                                static_cast<int>(input_length),
-                                                &misspelling_start,
-                                                &misspelling_length,
-                                                &suggestions);
-
-    // Check for spelling.
-    EXPECT_EQ(result, kTestCases[i].expected_result);
-
-    // Check if the suggested words occur.
-    bool suggested_word_is_present = false;
-    for (int j=0; j < static_cast<int>(suggestions.size()); j++) {
-      if (suggestions.at(j).compare(kTestCases[i].suggested_word) == 0) {
-        suggested_word_is_present = true;
-        break;
-      }
-    }
-
-    EXPECT_TRUE(suggested_word_is_present);
-  }
-}
-
-// This test Adds words to the SpellChecker and veifies that it remembers them.
-TEST_F(SpellCheckTest, DISABLED_SpellCheckAddToDictionary_EN_US) {
-  static const struct {
-    // A string to be added to SpellChecker.
-    const wchar_t* word_to_add;
-  } kTestCases[] = {  // word to be added to SpellChecker
-    {L"Googley"},
-    {L"Googleplex"},
-    {L"Googler"},
-  };
-
-  std::wstring hunspell_directory;
-  ASSERT_TRUE(PathService::Get(chrome::DIR_APP_DICTIONARIES,
-                               &hunspell_directory));
-
-  scoped_refptr<SpellChecker> spell_checker(new SpellChecker(
-      hunspell_directory, L"en-US", NULL, kTempCustomDictionaryFile));
-
-  for (int i = 0; i < arraysize(kTestCases); i++) {
-    // Add the word to spellchecker.
-    spell_checker->AddWord(std::wstring(kTestCases[i].word_to_add));
-
-    // Now check whether it is added to Spellchecker.
-    std::vector<std::wstring> suggestions;
-    size_t input_length = 0;
-    if (kTestCases[i].word_to_add != NULL) {
-      input_length = wcslen(kTestCases[i].word_to_add);
-    }
-    int misspelling_start;
-    int misspelling_length;
-    bool result = spell_checker->SpellCheckWord(kTestCases[i].word_to_add,
-                                                static_cast<int>(input_length),
-                                                &misspelling_start,
-                                                &misspelling_length,
-                                                &suggestions);
-
-    // Check for spelling.
-    EXPECT_TRUE(result);
-  }
-
-  // Now initialize another spellchecker to see that AddToWord is permanent.
-  scoped_refptr<SpellChecker> spell_checker_new(new SpellChecker(
-      hunspell_directory, L"en-US", NULL, kTempCustomDictionaryFile));
-
-  for (int i = 0; i < arraysize(kTestCases); i++) {
-    // Now check whether it is added to Spellchecker.
-    std::vector<std::wstring> suggestions;
-    size_t input_length = 0;
-    if (kTestCases[i].word_to_add != NULL) {
-      input_length = wcslen(kTestCases[i].word_to_add);
-    }
-    int misspelling_start;
-    int misspelling_length;
-    bool result = spell_checker_new->SpellCheckWord(
-        kTestCases[i].word_to_add,
-        static_cast<int>(input_length),
-        &misspelling_start,
-        &misspelling_length,
-        &suggestions);
-
-    // Check for spelling.
-    EXPECT_TRUE(result);
-  }
-
-  // Remove the temp custom dictionary file.
-  file_util::Delete(kTempCustomDictionaryFile, false);
-}
-
-// SpellChecker should suggest custome words for misspelled words.
-TEST_F(SpellCheckTest, DISABLED_SpellCheckSuggestionsAddToDictionary_EN_US) {
-  static const struct {
-    // A string to be added to SpellChecker.
-    const wchar_t* word_to_add;
-  } kTestCases[] = {  // word to be added to SpellChecker
-    {L"Googley"},
-    {L"Googleplex"},
-    {L"Googler"},
-  };
-
-  std::wstring hunspell_directory;
-  ASSERT_TRUE(PathService::Get(chrome::DIR_APP_DICTIONARIES,
-                               &hunspell_directory));
-
-  scoped_refptr<SpellChecker> spell_checker(new SpellChecker(
-      hunspell_directory, L"en-US", NULL, kTempCustomDictionaryFile));
-
-  for (int i = 0; i < arraysize(kTestCases); i++) {
-    // Add the word to spellchecker.
-    spell_checker->AddWord(std::wstring(kTestCases[i].word_to_add));
-  }
-
-  // Now check to see whether the custom words are suggested for 
-  // misspelled but similar words.
-  static const struct {
-    // A string to be tested.
-    const wchar_t* input;
-    // An expected result for this test case.
-    //   * true: the input string does not have any invalid words.
-    //   * false: the input string has one or more invalid words.
-    bool expected_result;
-    // The position and the length of the first invalid word.
-    int misspelling_start;
-    int misspelling_length;
-
-    // A suggested word that should occur.
-    const wchar_t* suggested_word;
-  } kTestCasesToBeTested[] = {
-    {L"oogley", false, 0, 0, L"Googley"},
-    {L"oogler", false, 0, 0, L"Googler"},
-    {L"oogleplex", false, 0, 0, L"Googleplex"},
-  };
-
-  for (int i = 0; i < arraysize(kTestCasesToBeTested); i++) {
-    std::vector<std::wstring> suggestions;
-    size_t input_length = 0;
-    if (kTestCasesToBeTested[i].input != NULL) {
-      input_length = wcslen(kTestCasesToBeTested[i].input);
-    }
-    int misspelling_start;
-    int misspelling_length;
-    bool result = spell_checker->SpellCheckWord(kTestCasesToBeTested[i].input,
-                                                static_cast<int>(input_length),
-                                                &misspelling_start,
-                                                &misspelling_length,
-                                                &suggestions);
-
-    // Check for spelling.
-    EXPECT_EQ(result, kTestCasesToBeTested[i].expected_result);
-
-    // Check if the suggested words occur.
-    bool suggested_word_is_present = false;
-    for (int j=0; j < static_cast<int>(suggestions.size()); j++) {
-      if (suggestions.at(j).compare(kTestCasesToBeTested[i].suggested_word) ==
-                                    0) {
-        suggested_word_is_present = true;
-        break;
-      }
-    }
-
-    EXPECT_TRUE(suggested_word_is_present);
-  }
-
-  // Remove the temp custom dictionary file.
-  file_util::Delete(kTempCustomDictionaryFile, false);
-}