Add taskid for navigation, created in session sync

components/sync_sessions/task_tracker_unittest.cc

Index: components/sync_sessions/task_tracker_unittest.cc
diff --git a/components/sync_sessions/task_tracker_unittest.cc b/components/sync_sessions/task_tracker_unittest.cc
new file mode 100644
index 0000000000000000000000000000000000000000..9a2ce56584367839526517514045bd60993c0192
--- /dev/null
+++ b/components/sync_sessions/task_tracker_unittest.cc
@@ -0,0 +1,83 @@
+// Copyright 2017 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/sync_sessions/task_tracker.h"
+
+#include <utility>
+
+#include "base/test/simple_test_clock.h"
+#include "base/time/time.h"
+#include "testing/gmock/include/gmock/gmock.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+using testing::ElementsAre;
+
+namespace sync_sessions {
+
+namespace {
+const int kTab1 = 15;
+const int kTab2 = 25;
+}  // namespace
+
+TEST(TaskTrackerTest, GetTabTasks) {
+  TaskTracker task_tracker;
+  TabTasks* tab_tasks = task_tracker.GetTabTasks(kTab1);
+  ASSERT_NE(tab_tasks, nullptr);
+  ASSERT_EQ(task_tracker.GetTabTasks(kTab1), tab_tasks);
+  ASSERT_NE(task_tracker.GetTabTasks(kTab2), tab_tasks);
+}
+
+TEST(TaskTrackerTest, UpdateTasksWithinTab) {
+  std::unique_ptr<base::SimpleTestClock> clock =
+      base::MakeUnique<base::SimpleTestClock>();
+  base::SimpleTestClock* clock_ptr = clock.get();
+  TaskTracker task_tracker(std::move(clock));
+  clock_ptr->SetNow(base::Time::FromTimeT(1));
+
+  TabTasks* tab_tasks = task_tracker.GetTabTasks(kTab1);
+  tab_tasks->UpdateTask(0, ui::PageTransition::PAGE_TRANSITION_KEYWORD);
+  ASSERT_THAT(tab_tasks->GetTaskIdAtNavIndex(0), ElementsAre(1));
+
+  clock_ptr->SetNow(base::Time::FromTimeT(2));
+  // ignoring this update
+  tab_tasks->UpdateTask(0, ui::PageTransition::PAGE_TRANSITION_RELOAD);
+  ASSERT_THAT(tab_tasks->GetTaskIdAtNavIndex(0), ElementsAre(1));
+
+  // adding two tasks from two clicks
+  clock_ptr->SetNow(base::Time::FromTimeT(3));
+  tab_tasks->UpdateTask(1, ui::PageTransition::PAGE_TRANSITION_LINK);
+  ASSERT_THAT(tab_tasks->GetTaskIdAtNavIndex(0), ElementsAre(1));
+  ASSERT_THAT(tab_tasks->GetTaskIdAtNavIndex(1), ElementsAre(1, 3));
+  clock_ptr->SetNow(base::Time::FromTimeT(4));
+  tab_tasks->UpdateTask(2, ui::PageTransition::PAGE_TRANSITION_LINK);
+  ASSERT_THAT(tab_tasks->GetTaskIdAtNavIndex(0), ElementsAre(1));
+  ASSERT_THAT(tab_tasks->GetTaskIdAtNavIndex(1), ElementsAre(1, 3));
+  ASSERT_THAT(tab_tasks->GetTaskIdAtNavIndex(2), ElementsAre(1, 3, 4));
+
+  // back to task 1
+  clock_ptr->SetNow(base::Time::FromTimeT(5));
+  tab_tasks->UpdateTask(0, ui::PageTransition::PAGE_TRANSITION_FORWARD_BACK);
+  ASSERT_THAT(tab_tasks->GetTaskIdAtNavIndex(0), ElementsAre(1));
+  ASSERT_THAT(tab_tasks->GetTaskIdAtNavIndex(1), ElementsAre(1, 3));
+  ASSERT_THAT(tab_tasks->GetTaskIdAtNavIndex(2), ElementsAre(1, 3, 4));
+
+  // forward to task 4
+  clock_ptr->SetNow(base::Time::FromTimeT(6));
+  tab_tasks->UpdateTask(2, ui::PageTransition::PAGE_TRANSITION_FORWARD_BACK);
+  ASSERT_THAT(tab_tasks->GetTaskIdAtNavIndex(0), ElementsAre(1));
+  ASSERT_THAT(tab_tasks->GetTaskIdAtNavIndex(1), ElementsAre(1, 3));
+  ASSERT_THAT(tab_tasks->GetTaskIdAtNavIndex(2), ElementsAre(1, 3, 4));
+
+  // back to task 1 and have a new task by clicking
+  clock_ptr->SetNow(base::Time::FromTimeT(7));
+  tab_tasks->UpdateTask(0, ui::PageTransition::PAGE_TRANSITION_FORWARD_BACK);
+  clock_ptr->SetNow(base::Time::FromTimeT(8));
+  tab_tasks->UpdateTask(1, ui::PageTransition::PAGE_TRANSITION_LINK);
+  ASSERT_THAT(tab_tasks->GetTaskIdAtNavIndex(0), ElementsAre(1));
+  ASSERT_THAT(tab_tasks->GetTaskIdAtNavIndex(0), ElementsAre(1));
+  ASSERT_THAT(tab_tasks->GetTaskIdAtNavIndex(1), ElementsAre(1, 8));
+  ASSERT_EQ(tab_tasks->GetNavigationsCount(), 2);
+}
+
+}  // namespace sync_sessions