snippet_unittest.cc | Explore in Territory

// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifdef UNSAFE_BUFFERS_BUILD
// TODO(crbug.com/40285824): Remove this and convert code to safer constructs.
#pragma allow_unsafe_buffers
#endif

#include "components/query_parser/snippet.h"

#include <stddef.h>

#include <algorithm>

#include "base/strings/string_split.h"
#include "base/strings/string_util.h"
#include "base/strings/utf_string_conversions.h"
#include "testing/gtest/include/gtest/gtest.h"

namespace query_parser {
namespace {

// A sample document to compute snippets of.
// The \x bits after the first "Google" are UTF-8 of U+2122 TRADE MARK SIGN,
// and are useful for verifying we don't screw up in UTF-8/UTF-16 conversion.
const char kSampleDocument[] = …;

}  // namespace

// Thai sample taken from http://www.google.co.th/intl/th/privacy.html
// TODO(jungshik) : Add more samples (e.g. Hindi) after porting
// ICU 4.0's character iterator changes to our copy of ICU 3.8 to get
// grapheme clusters in Indic scripts handled more reasonably.
const char* kThaiSample = …;

// Comparator for sorting by the first element in a pair.
bool ComparePair1st(const Snippet::MatchPosition& a,
                    const Snippet::MatchPosition& b) { … }

// For testing, we'll compute the match positions manually instead of using
// sqlite's FTS matching.  BuildSnippet returns the snippet for matching
// |query| against |document|.  Matches are surrounded by "**".
std::u16string BuildSnippet(const std::string& document,
                            const std::string& query) { … }

TEST(Snippets, SimpleQuery) { … }

// Test that two words that are near each other don't produce two elided bits.
TEST(Snippets, NearbyWords) { … }

// The above tests already test that we get byte offsets correct, but here's
// one that gets the "TM" in its snippet.
TEST(Snippets, UTF8) { … }

TEST(Snippets, ThaiUTF8) { … }

TEST(Snippets, ExtractMatchPositions) { … }

}  // namespace query_parser
chromium/components/query_parser/snippet_unittest.cc
