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// Copyright (c) 2009 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/i18n/word_iterator.h"
#include "base/string_piece.h"
#include "base/string_util.h"
#include "base/sys_string_conversions.h"
#include "testing/gtest/include/gtest/gtest.h"
TEST(WordIteratorTest, BreakWord) {
std::wstring str(L" foo bar! \npouet boom");
WordIterator iter(str, WordIterator::BREAK_WORD);
ASSERT_TRUE(iter.Init());
EXPECT_TRUE(iter.Advance());
EXPECT_FALSE(iter.IsWord());
EXPECT_EQ(L" ", iter.GetWord());
EXPECT_TRUE(iter.Advance());
EXPECT_TRUE(iter.IsWord());
EXPECT_EQ(L"foo", iter.GetWord());
EXPECT_TRUE(iter.Advance());
EXPECT_FALSE(iter.IsWord());
EXPECT_EQ(L" ", iter.GetWord());
EXPECT_TRUE(iter.Advance());
EXPECT_TRUE(iter.IsWord());
EXPECT_EQ(L"bar", iter.GetWord());
EXPECT_TRUE(iter.Advance());
EXPECT_FALSE(iter.IsWord());
EXPECT_EQ(L"!", iter.GetWord());
EXPECT_TRUE(iter.Advance());
EXPECT_FALSE(iter.IsWord());
EXPECT_EQ(L" ", iter.GetWord());
EXPECT_TRUE(iter.Advance());
EXPECT_FALSE(iter.IsWord());
EXPECT_EQ(L"\n", iter.GetWord());
EXPECT_TRUE(iter.Advance());
EXPECT_TRUE(iter.IsWord());
EXPECT_EQ(L"pouet", iter.GetWord());
EXPECT_TRUE(iter.Advance());
EXPECT_FALSE(iter.IsWord());
EXPECT_EQ(L" ", iter.GetWord());
EXPECT_TRUE(iter.Advance());
EXPECT_TRUE(iter.IsWord());
EXPECT_EQ(L"boom", iter.GetWord());
EXPECT_FALSE(iter.Advance());
EXPECT_FALSE(iter.IsWord());
}
TEST(WordIteratorTest, BreakLine) {
std::wstring str(L" foo bar! \npouet boom");
WordIterator iter(str, WordIterator::BREAK_LINE);
ASSERT_TRUE(iter.Init());
EXPECT_TRUE(iter.Advance());
EXPECT_FALSE(iter.IsWord());
EXPECT_EQ(L" ", iter.GetWord());
EXPECT_TRUE(iter.Advance());
EXPECT_FALSE(iter.IsWord());
EXPECT_EQ(L"foo ", iter.GetWord());
EXPECT_TRUE(iter.Advance());
EXPECT_TRUE(iter.IsWord());
EXPECT_EQ(L"bar! \n", iter.GetWord());
EXPECT_TRUE(iter.Advance());
EXPECT_FALSE(iter.IsWord());
EXPECT_EQ(L"pouet ", iter.GetWord());
EXPECT_TRUE(iter.Advance());
EXPECT_FALSE(iter.IsWord());
EXPECT_EQ(L"boom", iter.GetWord());
EXPECT_FALSE(iter.Advance());
EXPECT_FALSE(iter.IsWord());
}
TEST(WordIteratorTest, BreakWide16) {
// "Παγκόσμιος Ιστός"
const std::wstring str(L"\x03a0\x03b1\x03b3\x03ba\x03cc\x03c3\x03bc\x03b9"
L"\x03bf\x03c2\x0020\x0399\x03c3\x03c4\x03cc\x03c2");
const std::wstring word1(str.substr(0, 10));
const std::wstring word2(str.substr(11, 5));
WordIterator iter(str, WordIterator::BREAK_WORD);
ASSERT_TRUE(iter.Init());
EXPECT_TRUE(iter.Advance());
EXPECT_TRUE(iter.IsWord());
EXPECT_EQ(word1, iter.GetWord());
EXPECT_TRUE(iter.Advance());
EXPECT_FALSE(iter.IsWord());
EXPECT_EQ(L" ", iter.GetWord());
EXPECT_TRUE(iter.Advance());
EXPECT_TRUE(iter.IsWord());
EXPECT_EQ(word2, iter.GetWord());
EXPECT_FALSE(iter.Advance());
EXPECT_FALSE(iter.IsWord());
}
TEST(WordIteratorTest, BreakWide32) {
// U+1D49C MATHEMATICAL SCRIPT CAPITAL A
const char *very_wide_char = "\xF0\x9D\x92\x9C";
const std::wstring str(
base::SysUTF8ToWide(StringPrintf("%s a", very_wide_char)));
#if defined(WCHAR_T_IS_UTF16)
const std::wstring very_wide_word(str.substr(0, 2));
#elif defined(WCHAR_T_IS_UTF32)
const std::wstring very_wide_word(str.substr(0, 1));
#endif
WordIterator iter(str, WordIterator::BREAK_WORD);
ASSERT_TRUE(iter.Init());
EXPECT_TRUE(iter.Advance());
EXPECT_TRUE(iter.IsWord());
EXPECT_EQ(very_wide_word, iter.GetWord());
EXPECT_TRUE(iter.Advance());
EXPECT_FALSE(iter.IsWord());
EXPECT_EQ(L" ", iter.GetWord());
EXPECT_TRUE(iter.Advance());
EXPECT_TRUE(iter.IsWord());
EXPECT_EQ(L"a", iter.GetWord());
EXPECT_FALSE(iter.Advance());
EXPECT_FALSE(iter.IsWord());
}
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