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- // Copyright 2016 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 "components/url_pattern_index/string_splitter.h"
- #include <string>
- #include <vector>
- #include "base/strings/string_piece.h"
- #include "testing/gtest/include/gtest/gtest.h"
- namespace url_pattern_index {
- namespace {
- bool IsTestSeparator(char c) {
- return c == ' ' || c == '\t' || c == ',';
- }
- }
- TEST(StringSplitterTest, SplitWithEmptyResult) {
- const char* const kStrings[] = {
- "", " ", "\t", ",", " \t ", ",,,,", "\t\t\t",
- };
- for (const char* string : kStrings) {
- auto splitter = CreateStringSplitter(string, IsTestSeparator);
- // Explicitly verify both operator== and operator!=.
- EXPECT_TRUE(splitter.begin() == splitter.end());
- EXPECT_FALSE(splitter.begin() != splitter.end());
- }
- }
- TEST(StringSplitterTest, SplitOneWord) {
- const char* const kLongStrings[] = {
- "word", " word ", " word", "word ", ",word,",
- "\tword\t", " word ", "word ", " word", ", word, \t",
- };
- const char* const kShortStrings[] = {
- "w", " w ", " w", "w ", " w ", " w", "w ", ", w, ", "w, \t",
- };
- const char kLongWord[] = "word";
- const char kShortWord[] = "w";
- auto expect_word = [](const char* text, const char* word) {
- auto splitter = CreateStringSplitter(text, IsTestSeparator);
- // Explicitly verify both operator== and operator!=.
- EXPECT_TRUE(splitter.begin() != splitter.end());
- EXPECT_FALSE(splitter.begin() == splitter.end());
- EXPECT_EQ(splitter.end(), ++splitter.begin());
- EXPECT_EQ(word, *splitter.begin());
- auto iterator = splitter.begin();
- EXPECT_EQ(splitter.begin(), iterator++);
- EXPECT_EQ(splitter.end(), iterator);
- };
- for (const char* string : kLongStrings)
- expect_word(string, kLongWord);
- for (const char* string : kShortStrings)
- expect_word(string, kShortWord);
- }
- TEST(StringSplitterTest, SplitThreeWords) {
- const char* const kStrings[] = {
- "one two three", " one two three ", " one two, three",
- "one,two\t\t three", "one, two, three, ",
- };
- const std::vector<base::StringPiece> kResults = {
- "one", "two", "three",
- };
- for (const char* string : kStrings) {
- auto splitter = CreateStringSplitter(string, IsTestSeparator);
- std::vector<base::StringPiece> tokens(splitter.begin(), splitter.end());
- EXPECT_EQ(kResults, tokens);
- }
- }
- } // namespace url_pattern_index
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