Componentize SearchProvider

chrome/browser/autocomplete/answers_cache_unittest.cc

-// Copyright 2014 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 "chrome/browser/autocomplete/answers_cache.h"
-
-#include "base/strings/utf_string_conversions.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-TEST(AnswersCacheTest, CacheStartsEmpty) {
-  AnswersCache cache(1);
-  EXPECT_TRUE(cache.empty());
-}
-
-TEST(AnswersCacheTest, UpdatePopulatesCache) {
-  AnswersCache cache(1);
-  cache.UpdateRecentAnswers(base::ASCIIToUTF16("weather los angeles"),
-                            base::ASCIIToUTF16("2334"));
-  EXPECT_FALSE(cache.empty());
-}
-
-TEST(AnswersCacheTest, GetWillRetrieveMatchingInfo) {
-  AnswersCache cache(1);
-
-  base::string16 full_query_text = base::ASCIIToUTF16("weather los angeles");
-  base::string16 query_type = base::ASCIIToUTF16("2334");
-  cache.UpdateRecentAnswers(full_query_text, query_type);
-
-  // Partial prefixes retrieve info.
-  AnswersQueryData data = cache.GetTopAnswerEntry(full_query_text.substr(0, 8));
-  EXPECT_EQ(full_query_text, data.full_query_text);
-  EXPECT_EQ(query_type, data.query_type);
-
-  // Mismatched prefix retrieves empty data.
-  data = cache.GetTopAnswerEntry(full_query_text.substr(1, 8));
-  EXPECT_TRUE(data.full_query_text.empty() && data.query_type.empty());
-
-  // Full match retrieves info.
-  data = cache.GetTopAnswerEntry(full_query_text);
-  EXPECT_EQ(full_query_text, data.full_query_text);
-  EXPECT_EQ(query_type, data.query_type);
-}
-
-TEST(AnswersCacheTest, MatchMostRecent) {
-  AnswersCache cache(2);
-
-  base::string16 query_weather_la = base::ASCIIToUTF16("weather los angeles");
-  base::string16 query_weather_lv = base::ASCIIToUTF16("weather las vegas");
-  base::string16 query_type = base::ASCIIToUTF16("2334");
-
-  cache.UpdateRecentAnswers(query_weather_lv, query_type);
-  cache.UpdateRecentAnswers(query_weather_la, query_type);
-
-  // "weather los angeles" is most recent match to "weather l".
-  AnswersQueryData data =
-      cache.GetTopAnswerEntry(base::ASCIIToUTF16("weather l"));
-  EXPECT_EQ(query_weather_la, data.full_query_text);
-
-  // Update recency for "weather las vegas".
-  cache.GetTopAnswerEntry(query_weather_lv);
-
-  // "weather las vegas" should now be the most recent match to "weather l".
-  data = cache.GetTopAnswerEntry(base::ASCIIToUTF16("weather l"));
-  EXPECT_EQ(query_weather_lv, data.full_query_text);
-}
-
-TEST(AnswersCacheTest, LeastRecentItemIsEvicted) {
-  AnswersCache cache(2);
-
-  base::string16 query_weather_la = base::ASCIIToUTF16("weather los angeles");
-  base::string16 query_weather_lv = base::ASCIIToUTF16("weather las vegas");
-  base::string16 query_weather_lb = base::ASCIIToUTF16("weather long beach");
-  base::string16 query_type = base::ASCIIToUTF16("2334");
-
-  cache.UpdateRecentAnswers(query_weather_lb, query_type);
-  cache.UpdateRecentAnswers(query_weather_lv, query_type);
-  EXPECT_FALSE(
-      cache.GetTopAnswerEntry(query_weather_lb).full_query_text.empty());
-  EXPECT_FALSE(
-      cache.GetTopAnswerEntry(query_weather_lv).full_query_text.empty());
-  EXPECT_TRUE(
-      cache.GetTopAnswerEntry(query_weather_la).full_query_text.empty());
-
-  cache.UpdateRecentAnswers(query_weather_la, query_type);
-  EXPECT_TRUE(
-      cache.GetTopAnswerEntry(query_weather_lb).full_query_text.empty());
-  EXPECT_FALSE(
-      cache.GetTopAnswerEntry(query_weather_lv).full_query_text.empty());
-  EXPECT_FALSE(
-      cache.GetTopAnswerEntry(query_weather_la).full_query_text.empty());
-}
-
-TEST(AnswersCacheTest, DuplicateEntries) {
-  AnswersCache cache(2);
-
-  base::string16 query_weather_lv = base::ASCIIToUTF16("weather las vegas");
-  base::string16 query_weather_lb = base::ASCIIToUTF16("weather long beach");
-  base::string16 query_weather_l = base::ASCIIToUTF16("weather l");
-  base::string16 query_type = base::ASCIIToUTF16("2334");
-
-  cache.UpdateRecentAnswers(query_weather_lb, query_type);
-  cache.UpdateRecentAnswers(query_weather_lv, query_type);
-
-  // Test that duplicate entries update recency.
-  cache.UpdateRecentAnswers(query_weather_lb, query_type);
-  EXPECT_EQ(query_weather_lb,
-            cache.GetTopAnswerEntry(query_weather_l).full_query_text);
-
-  // Test duplicate do not evict other entries. LV should still be in cache.
-  cache.UpdateRecentAnswers(query_weather_lb, query_type);
-  EXPECT_FALSE(
-      cache.GetTopAnswerEntry(query_weather_lv).full_query_text.empty());
-}