Index: chrome/browser/win/jumplist_update_util_unittest.cc |
diff --git a/chrome/browser/win/jumplist_update_util_unittest.cc b/chrome/browser/win/jumplist_update_util_unittest.cc |
new file mode 100644 |
index 0000000000000000000000000000000000000000..16f9471b12fe8d77132d93de22e02a006f6f5ae6 |
--- /dev/null |
+++ b/chrome/browser/win/jumplist_update_util_unittest.cc |
@@ -0,0 +1,72 @@ |
+// 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 "chrome/browser/win/jumplist_update_util.h" |
+ |
+#include <algorithm> |
+ |
+#include "base/strings/utf_string_conversions.h" |
+#include "testing/gtest/include/gtest/gtest.h" |
+ |
+namespace { |
+ |
+// Helper function to create a ShellLinkItem whose url is specified by |url|. |
+scoped_refptr<ShellLinkItem> CreateShellLinkWithURL(const std::string& url) { |
+ auto item = base::MakeRefCounted<ShellLinkItem>(); |
+ item->set_url(url); |
+ return item; |
+} |
+ |
+} // namespace |
+ |
+TEST(JumpListUpdateUtilTest, MostVisitedItemsUnchanged) { |
+ // Test data. |
+ static constexpr struct { |
+ const char* url; |
+ const wchar_t* title; |
+ } kTestData[] = {{"https://www.google.com/", L"Google"}, |
+ {"https://www.youtube.com/", L"Youtube"}, |
+ {"https://www.gmail.com/", L"Gmail"}}; |
+ |
+ ShellLinkItemList jumplist_items; |
+ history::MostVisitedURLList history_items; |
+ |
+ for (const auto& test_data : kTestData) { |
+ jumplist_items.push_back(CreateShellLinkWithURL(test_data.url)); |
+ history_items.emplace_back(GURL(test_data.url), test_data.title); |
+ } |
+ |
+ // Both jumplist_items and history_items have 3 urls: Google, Youtube, Gmail. |
+ // Also, their urls have the same order. |
+ EXPECT_TRUE(MostVisitedItemsUnchanged(jumplist_items, history_items, 3)); |
+ EXPECT_FALSE(MostVisitedItemsUnchanged(jumplist_items, history_items, 2)); |
+ EXPECT_FALSE(MostVisitedItemsUnchanged(jumplist_items, history_items, 1)); |
+ |
+ // Reverse history_items, so the 3 urls in history_items are in reverse order: |
+ // Gmail, Youtube, Google. |
+ // The 3 urls in jumplist_items remain the same: Google, Youtube, Gmail. |
+ std::reverse(history_items.begin(), history_items.end()); |
+ EXPECT_FALSE(MostVisitedItemsUnchanged(jumplist_items, history_items, 3)); |
+ |
+ // Reverse history_items back. |
+ std::reverse(history_items.begin(), history_items.end()); |
+ EXPECT_TRUE(MostVisitedItemsUnchanged(jumplist_items, history_items, 3)); |
+ |
+ // Pop out the last url ("Gmail") from jumplist_items. |
+ // Now jumplist_items has 2 urls: Google, Youtube, |
+ // and history_items has 3 urls: Google, Youtube, Gmail. |
+ jumplist_items.pop_back(); |
+ EXPECT_FALSE(MostVisitedItemsUnchanged(jumplist_items, history_items, 3)); |
+ EXPECT_TRUE(MostVisitedItemsUnchanged(jumplist_items, history_items, 2)); |
+ EXPECT_FALSE(MostVisitedItemsUnchanged(jumplist_items, history_items, 1)); |
+ |
+ // Pop out the last two urls ("Youtube", "Gmail") from history_items. |
+ // Now jumplist_items has 2 urls: Google, Youtube, |
+ // and history_items has 1 url: Google. |
+ history_items.pop_back(); |
+ history_items.pop_back(); |
+ EXPECT_FALSE(MostVisitedItemsUnchanged(jumplist_items, history_items, 3)); |
+ EXPECT_FALSE(MostVisitedItemsUnchanged(jumplist_items, history_items, 2)); |
+ EXPECT_FALSE(MostVisitedItemsUnchanged(jumplist_items, history_items, 1)); |
+} |