Seculative resource prefetching for URLs CL.

chrome/browser/predictors/resource_prefetch_predictor_tables_unittest.cc

+// Copyright (c) 2012 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 <set>
+#include <utility>
+#include <vector>
+
+#include "base/message_loop.h"
+#include "base/utf_string_conversions.h"
+#include "chrome/browser/predictors/predictor_database.h"
+#include "chrome/browser/predictors/resource_prefetch_predictor_tables.h"
+#include "chrome/test/base/testing_profile.h"
+#include "content/test/test_browser_thread.h"
+#include "sql/statement.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace predictors {
+
+ResourcePrefetchPredictorTables::UrlTableRow CreateUrlTableRow(

[dominich, 2012/06/06 17:09:09]

put this in an anonymous namespace

[Shishir, 2012/06/06 23:55:33]

No longer required.

+    const std::string& main_frame_url,
+    const std::string& resource_url,
+    ResourceType::Type resource_type,
+    int number_of_hits,
+    int number_of_misses,
+    int consecutive_misses,
+    double average_position) {
+  ResourcePrefetchPredictorTables::UrlTableRow row;
+  row.main_frame_url = GURL(main_frame_url);
+  row.resource_url = GURL(resource_url);
+  row.resource_type = resource_type;
+  row.number_of_hits = number_of_hits;
+  row.number_of_misses = number_of_misses;
+  row.consecutive_misses = consecutive_misses;
+  row.average_position = average_position;
+  row.UpdateScore();
+  return row;
+}
+
+class ResourcePrefetchPredictorTablesTest : public testing::Test {
+ public:
+  ResourcePrefetchPredictorTablesTest();
+  virtual ~ResourcePrefetchPredictorTablesTest();
+
+  virtual void SetUp();

[dominich, 2012/06/06 17:09:09]

OVERRIDE

[Shishir, 2012/06/06 23:55:33]

Done.

+  virtual void TearDown();

[dominich, 2012/06/06 17:09:09]

OVERRIDE

[Shishir, 2012/06/06 23:55:33]

Done.

+
+ protected:
+  void TestGetAllRows();
+  void TestUpdateRowsForUrl();
+  void TestDeleteRowsForUrls();
+  void TestDeleteAllRows();
+
+  TestingProfile profile_;
+  scoped_ptr<PredictorDatabase> db_;

[dominich, 2012/06/06 17:09:09]

can this just be an instance of a PredictorDatabase instead of a scoped ptr?

[Shishir, 2012/06/06 23:55:33]

I want to reset it for the ResourcePrefetchPredictorTablesReopenTest

+  scoped_refptr<ResourcePrefetchPredictorTables> tables_;
+  MessageLoop loop_;
+
+ private:
+  // Adds data to the URL table as well as test_url_rows_.
+  void InitializeSampleUrlData();
+
+  // Checks that the input vectors have the same elements, although they may
+  // be in different orders.
+  void TestUrlRowVectorsAreEqual(
+      const ResourcePrefetchPredictorTables::UrlTableRows& lhs,
+      const ResourcePrefetchPredictorTables::UrlTableRows& rhs) const;
+  bool UrlRowsAreEqual(
+      const ResourcePrefetchPredictorTables::UrlTableRow& lhs,
+      const ResourcePrefetchPredictorTables::UrlTableRow& rhs) const;
+
+  content::TestBrowserThread db_thread_;
+  ResourcePrefetchPredictorTables::UrlTableRows test_url_rows_;
+};
+
+class ResourcePrefetchPredictorTablesReopenTest
+    : public ResourcePrefetchPredictorTablesTest {
+ public:
+  virtual void SetUp() {
+    // Write data to the table, and then reopen the db.
+    ResourcePrefetchPredictorTablesTest::SetUp();
+    tables_ = NULL;
+    db_.reset(new PredictorDatabase(&profile_));
+    loop_.RunAllPending();
+    tables_ = db_->resource_prefetch_tables();
+  }
+};
+
+ResourcePrefetchPredictorTablesTest::ResourcePrefetchPredictorTablesTest()
+    : loop_(MessageLoop::TYPE_DEFAULT),
+      db_thread_(content::BrowserThread::DB, &loop_) {
+}
+
+ResourcePrefetchPredictorTablesTest::~ResourcePrefetchPredictorTablesTest() {
+}
+
+void ResourcePrefetchPredictorTablesTest::SetUp() {

[dominich, 2012/06/06 17:09:09]

you could do this in the constructor

[Shishir, 2012/06/06 23:55:33]

Done

+  db_.reset(new PredictorDatabase(&profile_));
+  tables_ = db_->resource_prefetch_tables();
+  loop_.RunAllPending();
+
+  tables_->DeleteAllRows();
+  InitializeSampleUrlData();
+}
+
+void ResourcePrefetchPredictorTablesTest::TearDown() {
+  test_url_rows_.clear();

[dominich, 2012/06/06 17:09:09]

no need to call clear

[Shishir, 2012/06/06 23:55:33]

Removed.

+  tables_->DeleteAllRows();

[dominich, 2012/06/06 17:09:09]

you could do this in the destructor, if at all.

[Shishir, 2012/06/06 23:55:33]

Removed.

+  db_.reset(NULL);

[dominich, 2012/06/06 17:09:09]

should be no need to call this reset(NULL)

[Shishir, 2012/06/06 23:55:33]

Done.

+}
+
+void ResourcePrefetchPredictorTablesTest::TestGetAllRows() {
+  ResourcePrefetchPredictorTables::UrlTableRows actual_rows;
+  tables_->GetAllRows(&actual_rows);
+
+  TestUrlRowVectorsAreEqual(test_url_rows_, actual_rows);
+}
+
+void ResourcePrefetchPredictorTablesTest::TestDeleteRowsForUrls() {
+  std::vector<GURL> urls_to_delete;
+  urls_to_delete.push_back(GURL("http://www.google.com"));
+  urls_to_delete.push_back(GURL("http://www.yahoo.com"));
+
+  tables_->DeleteRowsForUrls(urls_to_delete);
+
+  ResourcePrefetchPredictorTables::UrlTableRows actual_rows;
+  tables_->GetAllRows(&actual_rows);
+
+  ResourcePrefetchPredictorTables::UrlTableRows expected_rows;
+  expected_rows.push_back(test_url_rows_[5]);
+  expected_rows.push_back(test_url_rows_[6]);
+
+  TestUrlRowVectorsAreEqual(expected_rows, actual_rows);
+}
+
+void ResourcePrefetchPredictorTablesTest::TestUpdateRowsForUrl() {
+  ResourcePrefetchPredictorTables::UrlTableRows new_rows;
+  new_rows.push_back(CreateUrlTableRow(
+      "http://www.google.com",
+      "http://www.google.com/style.css",
+      ResourceType::STYLESHEET,
+      6, 2, 0, 1.0));
+  new_rows.push_back(CreateUrlTableRow(
+      "http://www.google.com",
+      "http://www.google.com/image.png",
+      ResourceType::IMAGE,
+      6, 4, 1, 4.2));
+  new_rows.push_back(CreateUrlTableRow(
+      "http://www.google.com",
+      "http://www.google.com/a.xml",
+      ResourceType::LAST_TYPE,
+      1, 0, 0, 6.1));
+  new_rows.push_back(CreateUrlTableRow(
+      "http://www.google.com",
+      "http://www.resources.google.com/script.js",
+      ResourceType::SCRIPT,
+      12, 0, 0, 8.5));
+
+  tables_->UpdateRowsForUrl(GURL("http://www.google.com"), new_rows);
+
+  ResourcePrefetchPredictorTables::UrlTableRows actual_rows;
+  tables_->GetAllRows(&actual_rows);
+
+  ResourcePrefetchPredictorTables::UrlTableRows expected_rows(new_rows);
+  expected_rows.push_back(test_url_rows_[5]);
+  expected_rows.push_back(test_url_rows_[6]);
+  expected_rows.push_back(test_url_rows_[7]);
+
+  TestUrlRowVectorsAreEqual(expected_rows, actual_rows);
+}
+
+void ResourcePrefetchPredictorTablesTest::TestDeleteAllRows() {
+  tables_->DeleteAllRows();
+
+  ResourcePrefetchPredictorTables::UrlTableRows actual_rows;
+  tables_->GetAllRows(&actual_rows);
+  EXPECT_EQ(0, static_cast<int>(actual_rows.size()));
+}
+
+void ResourcePrefetchPredictorTablesTest::TestUrlRowVectorsAreEqual(
+    const ResourcePrefetchPredictorTables::UrlTableRows& lhs,
+    const ResourcePrefetchPredictorTables::UrlTableRows& rhs) const {
+  EXPECT_EQ(lhs.size(), rhs.size());
+
+  std::set<std::pair<GURL, GURL> > resources_seen;
+  for (int i = 0; i < static_cast<int>(rhs.size()); ++i) {
+    std::pair<GURL, GURL> resource_id = std::make_pair(rhs[i].main_frame_url,
+                                                       rhs[i].resource_url);
+    EXPECT_EQ(resources_seen.find(resource_id), resources_seen.end());
+
+    for (int j = 0; j < static_cast<int>(lhs.size()); ++j) {
+      if (UrlRowsAreEqual(rhs[i], lhs[j])) {
+        resources_seen.insert(resource_id);
+        break;
+      }
+    }
+    EXPECT_NE(resources_seen.find(resource_id), resources_seen.end());
+  }
+  EXPECT_EQ(lhs.size(), resources_seen.size());
+}
+
+bool ResourcePrefetchPredictorTablesTest::UrlRowsAreEqual(
+    const ResourcePrefetchPredictorTables::UrlTableRow& lhs,
+    const ResourcePrefetchPredictorTables::UrlTableRow& rhs) const {
+  return lhs.main_frame_url == rhs.main_frame_url &&
+      lhs.resource_url == rhs.resource_url &&
+      lhs.resource_type == rhs.resource_type &&
+      lhs.number_of_hits == rhs.number_of_hits &&
+      lhs.number_of_misses == rhs.number_of_misses &&
+      lhs.consecutive_misses == rhs.consecutive_misses &&
+      lhs.average_position == rhs.average_position &&
+      lhs.score == rhs.score;
+}
+
+void ResourcePrefetchPredictorTablesTest::InitializeSampleUrlData() {

[dominich, 2012/06/06 17:09:09]

clear test_url_rows_ here

[Shishir, 2012/06/06 23:55:33]

Done.

+  test_url_rows_.push_back(CreateUrlTableRow(
+      "http://www.google.com",
+      "http://www.google.com/style.css",
+      ResourceType::STYLESHEET,
+      5, 2, 1, 1.1));
+  test_url_rows_.push_back(CreateUrlTableRow(
+      "http://www.google.com",
+      "http://www.google.com/script.js",
+      ResourceType::SCRIPT,
+      4, 0, 1, 2.1));
+  test_url_rows_.push_back(CreateUrlTableRow(
+      "http://www.google.com",
+      "http://www.google.com/image.png",
+      ResourceType::IMAGE,
+      6, 3, 0, 2.2));
+  test_url_rows_.push_back(CreateUrlTableRow(
+      "http://www.google.com",
+      "http://www.google.com/a.font",
+      ResourceType::LAST_TYPE,
+      2, 0, 0, 5.1));
+  test_url_rows_.push_back(CreateUrlTableRow(
+      "http://www.google.com",
+      "http://www.resources.google.com/script.js",
+      ResourceType::SCRIPT,
+      11, 0, 0, 8.5));
+
+  test_url_rows_.push_back(CreateUrlTableRow(
+      "http://www.reddit.com",
+      "http://reddit-resource.com/script1.js",
+      ResourceType::SCRIPT,
+      4, 0, 1, 1.0));
+  test_url_rows_.push_back(CreateUrlTableRow(
+      "http://www.reddit.com",
+      "http://reddit-resource.com/script2.js",
+      ResourceType::SCRIPT,
+      2, 0, 0, 2.1));
+
+  test_url_rows_.push_back(CreateUrlTableRow(
+      "http://www.yahoo.com",
+      "http://www.google.com/image.png",
+      ResourceType::IMAGE,
+      20, 1, 0, 10.0));
+
+  // Add all the rows to the table.
+  tables_->UpdateRowsForUrl(
+      GURL("http://www.google.com"),
+      ResourcePrefetchPredictorTables::UrlTableRows(
+          test_url_rows_.begin(), test_url_rows_.begin() + 5));
+  tables_->UpdateRowsForUrl(
+      GURL("http://www.reddit.com"),
+      ResourcePrefetchPredictorTables::UrlTableRows(
+          test_url_rows_.begin() + 5, test_url_rows_.begin() + 7));
+  tables_->UpdateRowsForUrl(
+      GURL("http://www.yahoo.com"),
+      ResourcePrefetchPredictorTables::UrlTableRows(
+          test_url_rows_.begin() + 7, test_url_rows_.begin() + 8));
+}
+
+TEST_F(ResourcePrefetchPredictorTablesTest, GetAllRows) {
+  TestGetAllRows();
+}
+
+TEST_F(ResourcePrefetchPredictorTablesTest, UpdateRowsForUrl) {
+  TestUpdateRowsForUrl();
+}
+
+TEST_F(ResourcePrefetchPredictorTablesTest, DeleteRowsForUrls) {
+  TestDeleteRowsForUrls();
+}
+
+TEST_F(ResourcePrefetchPredictorTablesTest, DeleteAllRows) {
+  TestDeleteAllRows();
+}
+
+TEST_F(ResourcePrefetchPredictorTablesReopenTest, GetAllRows) {
+  TestGetAllRows();
+}
+
+TEST_F(ResourcePrefetchPredictorTablesReopenTest, UpdateRowsForUrl) {
+  TestUpdateRowsForUrl();
+}
+
+TEST_F(ResourcePrefetchPredictorTablesReopenTest, DeleteRowsForUrls) {
+  TestDeleteRowsForUrls();
+}
+
+TEST_F(ResourcePrefetchPredictorTablesReopenTest, DeleteAllRows) {
+  TestDeleteAllRows();
+}
+
+}  // namespace predictors