Implement the Windows desktop search redirection feature.

components/search_engines/detect_desktop_search_win_unittest.cc

-// Copyright 2015 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/search_engines/detect_desktop_search_win.h"
-
-#include <stddef.h>
-
-#include "base/macros.h"
-#include "base/strings/string16.h"
-#include "components/search_engines/testing_search_terms_data.h"
-#include "testing/gtest/include/gtest/gtest.h"
-#include "url/gurl.h"
-
-namespace {
-struct DetectWindowsDesktopSearchTestData {
-  const char* url;
-  const wchar_t* expected_search_terms;
-};
-}  // namespace
-
-TEST(DetectWindowsDesktopSearch, DetectWindowsDesktopSearch) {
-  const DetectWindowsDesktopSearchTestData test_data[] = {
-      {"https://www.google.com", L""},
-      {"https://www.bing.com/search", L""},
-      {"https://www.bing.com/search?q=keyword&form=QBLH", L""},
-      {"https://www.bing.com/search?q=keyword&form=WNSGPH", L"keyword"},
-      {"https://www.bing.com/search?q=keyword&form=WNSBOX", L"keyword"},
-      {"https://www.bing.com/search?q=keyword&FORM=WNSGPH", L"keyword"},
-      {"https://www.bing.com/search?q=keyword&FORM=WNSBOX", L"keyword"},
-      {"https://www.bing.com/search?form=WNSGPH&q=keyword", L"keyword"},
-      {"https://www.bing.com/search?q=keyword&form=WNSGPH&other=stuff",
-       L"keyword"},
-      {"https://www.bing.com/search?q=%C3%A8+%C3%A9&form=WNSGPH", L"\xE8 \xE9"},
-  };
-
-  for (size_t i = 0; i < arraysize(test_data); ++i) {
-    TestingSearchTermsData search_terms_data("https://www.google.com");
-    base::string16 search_terms;
-    bool is_desktop_search = DetectWindowsDesktopSearch(
-        GURL(test_data[i].url), search_terms_data, &search_terms);
-    const base::string16 expected_search_terms(
-        test_data[i].expected_search_terms);
-    EXPECT_EQ(!expected_search_terms.empty(), is_desktop_search);
-    EXPECT_EQ(expected_search_terms, search_terms);
-  }
-}