Make sure that the browser will always restore settings page instead of sign out page after user si…

chrome/browser/sessions/session_common_utils_unittest.cc

+// Copyright 2016 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/sessions/session_common_utils.h"
+
+#include <memory>
+
+#include "components/sessions/content/content_serialized_navigation_builder.h"
+#include "components/sessions/core/serialized_navigation_entry.h"
+#include "components/sessions/core/session_types.h"
+#include "content/public/browser/navigation_entry.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace {
+
+void AppendNavigations(sessions::SessionTab* tab,
+                       content::NavigationEntry* entry) {
+  tab->navigations.push_back(
+      sessions::ContentSerializedNavigationBuilder::FromNavigationEntry(
+          0, *entry));
+}
+
+}  // namespace
+class SessionCommonUtilTest : public ::testing::Test {};
+
+TEST_F(SessionCommonUtilTest, GetSelectedIndex) {
+  const GURL settings_page("chrome://settings");
+  const GURL sign_out_page("chrome://settings/signOut");
+  sessions::SessionTab tab;
+
+  std::unique_ptr<content::NavigationEntry> entry1(
+      content::NavigationEntry::Create());
+  std::unique_ptr<content::NavigationEntry> entry2(
+      content::NavigationEntry::Create());
+  entry1->SetVirtualURL(settings_page);
+  entry2->SetVirtualURL(sign_out_page);
+
+  AppendNavigations(&tab, entry1.get());
+  AppendNavigations(&tab, entry2.get());
+
+  tab.current_navigation_index = 0;
+  ASSERT_EQ(0, GetNavigationIndexToSelect(tab));
+  tab.current_navigation_index = 1;
+  ASSERT_EQ(0, GetNavigationIndexToSelect(tab));
+}