Modify article item in ContentSuggestions

ios/chrome/browser/ui/content_suggestions/content_suggestions_article_item_unittest.mm

 // 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.
 
 #import "ios/chrome/browser/ui/content_suggestions/content_suggestions_article_item.h"
 
 #include "testing/gtest/include/gtest/gtest.h"
+#include "url/gurl.h"
 
 #if !defined(__has_feature) || !__has_feature(objc_arc)
 #error "This file requires ARC support."
 #endif
 
 namespace {
 
 // Tests that configureCell: set all the fields of the cell.
 TEST(ContentSuggestionsArticleItemTest, CellIsConfigured) {
   NSString* title = @"testTitle";
   NSString* subtitle = @"testSubtitle";
   UIImage* image = [[UIImage alloc] init];
+  GURL url = GURL("http://chromium.org");
   ContentSuggestionsArticleItem* item =
       [[ContentSuggestionsArticleItem alloc] initWithType:0
                                                     title:title
                                                  subtitle:subtitle
-                                                    image:image];
+                                                    image:image
+                                                      url:url];
   ContentSuggestionsArticleCell* cell = [[[item cellClass] alloc] init];
   EXPECT_EQ([ContentSuggestionsArticleCell class], [cell class]);
+  EXPECT_EQ(url, item.articleURL);
 
   [item configureCell:cell];
   EXPECT_EQ(title, cell.titleLabel.text);
   EXPECT_EQ(subtitle, cell.subtitleLabel.text);
   EXPECT_EQ(image, cell.imageView.image);
 }
 
 }  // namespace