Remove hyphenation code from Chromium.

content/renderer/hyphenator/hyphenator_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 "content/renderer/hyphenator/hyphenator.h"
-
-#include "base/path_service.h"
-#include "base/platform_file.h"
-#include "base/strings/utf_string_conversions.h"
-#include "content/common/hyphenator_messages.h"
-#include "content/public/test/mock_render_thread.h"
-#include "ipc/ipc_listener.h"
-#include "testing/gtest/include/gtest/gtest.h"
-#include "third_party/hyphen/hyphen.h"
-
-namespace content {
-namespace {
-
-// A mock message listener that listens for HyphenatorHost messages. This class
-// intercepts a HyphenatorHostMsg_OpenDictionary message sent to an
-// IPC::TestSink object and emulates the HyphenatorMessageFilter class.
-class MockListener : public IPC::Listener {
- public:
-  MockListener(Hyphenator* hyphenator, const string16& locale)
-      : hyphenator_(hyphenator),
-        locale_(locale) {
-  }
-  virtual ~MockListener() {
-  }
-
-  // IPC::ChannelProxy::MessageFilter implementation.
-  virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE {
-    if (message.type() != HyphenatorHostMsg_OpenDictionary::ID)
-      return false;
-
-    // Retrieve the locale parameter directly because HyphenatorHost messages
-    // are internal messages and unit tests cannot access its member functions,
-    // i.e. unit tests cannot call the HyphenatorHostMsg_OpenDictionary::Read
-    // function.
-    PickleIterator iter(message);
-    string16 locale;
-    EXPECT_TRUE(message.ReadString16(&iter, &locale));
-    EXPECT_EQ(locale_, locale);
-
-    // Open the default dictionary and call the OnControllMessageReceived
-    // function with a HyphenatorMsg_SetDictionary message.
-    base::FilePath dictionary_path;
-    if (!PathService::Get(base::DIR_SOURCE_ROOT, &dictionary_path))
-      return false;
-    dictionary_path = dictionary_path.AppendASCII("third_party");
-    dictionary_path = dictionary_path.AppendASCII("hyphen");
-    dictionary_path = dictionary_path.AppendASCII("hyph_en_US.dic");
-    base::PlatformFile file = base::CreatePlatformFile(
-        dictionary_path, base::PLATFORM_FILE_OPEN | base::PLATFORM_FILE_READ,
-        NULL, NULL);
-    EXPECT_NE(base::kInvalidPlatformFileValue, file);
-
-    IPC::Message response(
-        0, HyphenatorMsg_SetDictionary::ID, IPC::Message::PRIORITY_NORMAL);
-    IPC::PlatformFileForTransit transit = IPC::GetFileHandleForProcess(
-        file, GetHandle(), false);
-    IPC::ParamTraits<IPC::PlatformFileForTransit>::Write(&response, transit);
-    hyphenator_->OnControlMessageReceived(response);
-    base::ClosePlatformFile(file);
-    return true;
-  }
-
- private:
-  base::ProcessHandle GetHandle() const {
-    return base::Process::Current().handle();
-  }
-
-  Hyphenator* hyphenator_;
-  string16 locale_;
-};
-
-}  // namespace
-
-// A unit test for our hyphenator. This class loads a sample hyphenation
-// dictionary and hyphenates words.
-class HyphenatorTest : public testing::Test {
- public:
-  HyphenatorTest() {
-  }
-
-  bool Initialize() {
-    base::FilePath dictionary_path;
-    if (!PathService::Get(base::DIR_SOURCE_ROOT, &dictionary_path))
-      return false;
-    dictionary_path = dictionary_path.AppendASCII("third_party");
-    dictionary_path = dictionary_path.AppendASCII("hyphen");
-    dictionary_path = dictionary_path.AppendASCII("hyph_en_US.dic");
-    base::PlatformFile file = base::CreatePlatformFile(
-        dictionary_path, base::PLATFORM_FILE_OPEN | base::PLATFORM_FILE_READ,
-        NULL, NULL);
-    hyphenator_.reset(new Hyphenator(file));
-    return hyphenator_->Initialize();
-  }
-
-  // Creates a human-readable hyphenated word. This function inserts '-'
-  // characters to all places where we can insert hyphens to improve the
-  // readability of this unit test.
-  string16 Hyphenate(const string16& word) {
-    string16 hyphenated_word(word);
-    size_t position = word.length();
-    while (position > 0) {
-      size_t new_position = hyphenator_->ComputeLastHyphenLocation(word,
-                                                                   position);
-      EXPECT_LT(new_position, position);
-      if (new_position > 0)
-        hyphenated_word.insert(new_position, 1, '-');
-      position = new_position;
-    }
-    return hyphenated_word;
-  }
-
-  bool OpenDictionary(const string16& locale) {
-    hyphenator_.reset(new Hyphenator(base::kInvalidPlatformFileValue));
-    thread_.reset(new MockRenderThread());
-    listener_.reset(new MockListener(hyphenator_.get(), locale));
-    thread_->sink().AddFilter(listener_.get());
-    return hyphenator_->Attach(thread_.get(), locale);
-  }
-
-  size_t GetMessageCount() const {
-    return thread_->sink().message_count();
-  }
-
- private:
-  scoped_ptr<Hyphenator> hyphenator_;
-  scoped_ptr<MockRenderThread> thread_;
-  scoped_ptr<MockListener> listener_;
-};
-
-// Verifies that our hyphenator yields the same hyphenated words as the original
-// hyphen library does.
-TEST_F(HyphenatorTest, HyphenateWords) {
-  static const struct {
-    const char* input;
-    const char* expected;
-  } kTestCases[] = {
-    { "and", "and" },
-    { "concupiscent,", "con-cu-pis-cent," },
-    { "evidence.", "ev-i-dence." },
-    { "first", "first" },
-    { "getting", "get-ting" },
-    { "hedgehog", "hedge-hog" },
-    { "remarkable", "re-mark-able" },
-    { "straightened", "straight-ened" },
-    { "undid", "un-did" },
-    { "were", "were" },
-    { "Simply", "Sim-ply" },
-    { "Undone.", "Un-done." },
-    { "comfortably", "com-fort-ably"},
-    { "declination", "dec-li-na-tion" },
-    { "flamingo:", "flamin-go:" },
-    { "lination", "lina-tion" },
-    { "reciprocity", "rec-i-proc-i-ty" },
-    { "throughout", "through-out" },
-    { "undid", "un-did" },
-    { "undone.", "un-done." },
-    { "unnecessary", "un-nec-es-sary" },
-  };
-  Initialize();
-  for (size_t i = 0; i < ARRAYSIZE_UNSAFE(kTestCases); ++i) {
-    string16 input = ASCIIToUTF16(kTestCases[i].input);
-    string16 expected = ASCIIToUTF16(kTestCases[i].expected);
-    EXPECT_EQ(expected, Hyphenate(input));
-  }
-}
-
-// Verifies that our hyphenator sends a HyphenatorHostMsg_OpenDictionary
-// message to ask a browser to open a dictionary. Also, this test verifies that
-// our hyphenator can hyphnate words when the Hyphenator::SetDictionary function
-// is called.
-TEST_F(HyphenatorTest, openDictionary) {
-  // Send a HyphenatorHostMsg_OpenDictionary message and verify it is handled by
-  // our MockListner class.
-  EXPECT_TRUE(OpenDictionary(string16()));
-  EXPECT_EQ(0U, GetMessageCount());
-
-  // Verify that we can now hyphenate words. When the MockListener class
-  // receives a HyphenatorHostMsg_OpenDictionary message, it calls the
-  // OnControlMessageReceived function with a HyphenatorMsg_SetDictionary
-  // message. So, the Hyphenate function should be able to hyphenate words now.
-  string16 input = ASCIIToUTF16("hyphenation");
-  string16 expected = ASCIIToUTF16("hy-phen-ation");
-  EXPECT_EQ(expected, Hyphenate(input));
-}
-
-}  // namespace content