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..33517e199b01ed256bf15047db2f9a272a779f89
--- /dev/null
+++ b/components/sync_sessions/task_tracker_unittest.cc
@@ -0,0 +1,67 @@
+// 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 "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;
+}
+
+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) {
+  TaskTracker task_tracker;
+  TabTasks* tab_tasks = task_tracker.GetTabTasks(kTab1);
+  tab_tasks->UpdateTask(0, ui::PageTransition::PAGE_TRANSITION_KEYWORD, 1);
+  ASSERT_THAT(tab_tasks->GetTaskIdAtNav(0), ElementsAre(1));
+
+  // ignoring this update
+  tab_tasks->UpdateTask(0, ui::PageTransition::PAGE_TRANSITION_RELOAD, 2);
+  ASSERT_THAT(tab_tasks->GetTaskIdAtNav(0), ElementsAre(1));
+
+  // adding two tasks from two clicks
+  tab_tasks->UpdateTask(1, ui::PageTransition::PAGE_TRANSITION_LINK, 3);
+  ASSERT_THAT(tab_tasks->GetTaskIdAtNav(0), ElementsAre(1));
+  ASSERT_THAT(tab_tasks->GetTaskIdAtNav(1), ElementsAre(1, 3));
+  tab_tasks->UpdateTask(2, ui::PageTransition::PAGE_TRANSITION_LINK, 4);
+  ASSERT_THAT(tab_tasks->GetTaskIdAtNav(0), ElementsAre(1));
+  ASSERT_THAT(tab_tasks->GetTaskIdAtNav(1), ElementsAre(1, 3));
+  ASSERT_THAT(tab_tasks->GetTaskIdAtNav(2), ElementsAre(1, 3, 4));
+
+  // back to task 1
+  tab_tasks->UpdateTask(0, ui::PageTransition::PAGE_TRANSITION_FORWARD_BACK, 5);
+  ASSERT_THAT(tab_tasks->GetTaskIdAtNav(0), ElementsAre(1));
+  ASSERT_THAT(tab_tasks->GetTaskIdAtNav(1), ElementsAre(1, 3));
+  ASSERT_THAT(tab_tasks->GetTaskIdAtNav(2), ElementsAre(1, 3, 4));
+
+  // forward to task 4
+  tab_tasks->UpdateTask(2, ui::PageTransition::PAGE_TRANSITION_FORWARD_BACK, 6);
+  ASSERT_THAT(tab_tasks->GetTaskIdAtNav(0), ElementsAre(1));
+  ASSERT_THAT(tab_tasks->GetTaskIdAtNav(1), ElementsAre(1, 3));
+  ASSERT_THAT(tab_tasks->GetTaskIdAtNav(2), ElementsAre(1, 3, 4));
+
+  // back to task 1 and have a new task by clicking
+  tab_tasks->UpdateTask(0, ui::PageTransition::PAGE_TRANSITION_FORWARD_BACK, 7);
+  tab_tasks->UpdateTask(1, ui::PageTransition::PAGE_TRANSITION_LINK, 8);
+  ASSERT_THAT(tab_tasks->GetTaskIdAtNav(0), ElementsAre(1));
+  ASSERT_THAT(tab_tasks->GetTaskIdAtNav(0), ElementsAre(1));
+  ASSERT_THAT(tab_tasks->GetTaskIdAtNav(1), ElementsAre(1, 8));
+  ASSERT_EQ(tab_tasks->GetNavigationsNum(), 2);
+}
+
+}  // namespace sync_sessions