components/spellcheck/renderer/custom_dictionary_engine_unittest.cc

// Copyright (c) 2013 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 "base/strings/utf_string_conversions.h"
#include "components/spellcheck/renderer/custom_dictionary_engine.h"
#include "testing/gtest/include/gtest/gtest.h"

TEST(CustomDictionaryTest, HandlesEmptyWordWithInvalidSubstring) {
  CustomDictionaryEngine engine;
  std::set<std::string> custom_words;
  engine.Init(custom_words);
  EXPECT_FALSE(engine.SpellCheckWord(base::string16().c_str(), 15, 23));
}

TEST(CustomDictionaryTest, Basic) {
  CustomDictionaryEngine engine;
  EXPECT_FALSE(engine.SpellCheckWord(base::ASCIIToUTF16("helllo").c_str(),
      0, 6));
  std::set<std::string> custom_words;
  custom_words.insert("helllo");
  engine.Init(custom_words);
  EXPECT_TRUE(engine.SpellCheckWord(base::ASCIIToUTF16("helllo").c_str(),
      0, 6));
}

TEST(CustomDictionaryTest, HandlesNullCharacters) {
  base::char16 data[4] = {'a', 0, 'b', 'c'};
  EXPECT_FALSE(CustomDictionaryEngine().SpellCheckWord(data, 1, 1));
}