Support action button to fetch more content suggestions

components/ntp_snippets/content_suggestions_service_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 "components/ntp_snippets/content_suggestions_service.h"
 
 #include <memory>
 #include <vector>
 
 #include "base/bind.h"
@@ skipping 57 matching lines @@
   std::vector<Category> GetProvidedCategories() override {
     return provided_categories_;
   }
 
   CategoryStatus GetCategoryStatus(Category category) {
     return statuses_[category.id()];
   }
 
   CategoryInfo GetCategoryInfo(Category category) {
     return CategoryInfo(base::ASCIIToUTF16("Section title"),
-                        ContentSuggestionsCardLayout::FULL_CARD);
+                        ContentSuggestionsCardLayout::FULL_CARD, true);
   }
 
   void FireSuggestionsChanged(Category category, std::vector<int> numbers) {
     observer()->OnNewSuggestions(this, category, CreateSuggestions(numbers));
   }
 
   void FireCategoryStatusChanged(Category category, CategoryStatus new_status) {
     statuses_[category.id()] = new_status;
     observer()->OnCategoryStatusChanged(this, category, new_status);
   }
 
+  MOCK_METHOD1(FetchMoreSuggestions, void(Category category));
+  MOCK_METHOD1(DismissSuggestion, void(const std::string& suggestion_id));
+  MOCK_METHOD2(FetchSuggestionImage,
+               void(const std::string& suggestion_id,
+                    const ImageFetchedCallback& callback));
   MOCK_METHOD1(ClearCachedSuggestionsForDebugging, void(Category category));
   MOCK_METHOD1(GetDismissedSuggestionsForDebugging,
                std::vector<ContentSuggestion>(Category category));
   MOCK_METHOD1(ClearDismissedSuggestionsForDebugging, void(Category category));
-  MOCK_METHOD1(DismissSuggestion, void(const std::string& suggestion_id));
-  MOCK_METHOD2(FetchSuggestionImage,
-               void(const std::string& suggestion_id,
-                    const ImageFetchedCallback& callback));
 
  private:
   std::vector<Category> provided_categories_;
   std::map<int, CategoryStatus> statuses_;
 };
 
 class MockServiceObserver : public ContentSuggestionsService::Observer {
  public:
   MOCK_METHOD1(OnNewSuggestions, void(Category category));
   MOCK_METHOD2(OnCategoryStatusChanged,
@@ skipping 251 matching lines @@
   Mock::VerifyAndClearExpectations(&observer);
 
   // Shutdown the service
   EXPECT_CALL(observer, ContentSuggestionsServiceShutdown());
   service()->Shutdown();
   service()->RemoveObserver(&observer);
   // The service will receive two Shutdown() calls.
 }
 
 }  // namespace ntp_snippets