Default background for not suggested article images

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"
 #import "third_party/ocmock/OCMock/OCMock.h"
 #import "third_party/ocmock/gtest_support.h"
 #include "url/gurl.h"
@@ skipping 16 matching lines @@
   ContentSuggestionsArticleItem* item =
       [[ContentSuggestionsArticleItem alloc] initWithType:0
                                                     title:title
                                                  subtitle:subtitle
                                                  delegate:delegateMock
                                                       url:url];
   OCMExpect([delegateMock loadImageForArticleItem:item]);
   ContentSuggestionsArticleCell* cell = [[[item cellClass] alloc] init];
   ASSERT_EQ([ContentSuggestionsArticleCell class], [cell class]);
   ASSERT_EQ(url, item.articleURL);
-  ASSERT_EQ(nil, item.image);
+  ASSERT_NE(nil, item.image);
 
   // Action.
   [item configureCell:cell];
 
   // Tests.
-  EXPECT_EQ(nil, cell.imageView.image);
+  EXPECT_EQ(item.image, cell.imageView.image);
   EXPECT_EQ(title, cell.titleLabel.text);
   EXPECT_EQ(subtitle, cell.subtitleLabel.text);
   EXPECT_OCMOCK_VERIFY(delegateMock);
 }
 
-// Tests that configureCell: set all the fields of the cell with an image and
-// does not call the delegate.
-TEST(ContentSuggestionsArticleItemTest, CellIsConfiguredWithImage) {
-  // Setup.
-  NSString* title = @"testTitle";
-  NSString* subtitle = @"testSubtitle";
-  UIImage* image = [[UIImage alloc] init];
-  GURL url = GURL("http://chromium.org");
-  id delegateMock =
-      OCMStrictProtocolMock(@protocol(ContentSuggestionsArticleItemDelegate));
-  ContentSuggestionsArticleItem* item =
-      [[ContentSuggestionsArticleItem alloc] initWithType:0
-                                                    title:title
-                                                 subtitle:subtitle
-                                                 delegate:delegateMock
-                                                      url:url];
-  item.image = image;
-  ContentSuggestionsArticleCell* cell = [[[item cellClass] alloc] init];
-
-  // Action.
-  [item configureCell:cell];
-
-  // Tests.
-  EXPECT_EQ(image, cell.imageView.image);
-  EXPECT_EQ(title, cell.titleLabel.text);
-  EXPECT_EQ(subtitle, cell.subtitleLabel.text);
-  EXPECT_EQ(image, cell.imageView.image);
-}
-
 // Tests that configureCell: does not call the delegate if it fetched the image
 // once.
 TEST(ContentSuggestionsArticleItemTest, DontFetchImageIsImageIsBeingFetched) {
   // Setup.
   NSString* title = @"testTitle";
   NSString* subtitle = @"testSubtitle";
   GURL url = GURL("http://chromium.org");
   id niceDelegateMock =
       OCMProtocolMock(@protocol(ContentSuggestionsArticleItemDelegate));
   ContentSuggestionsArticleItem* item =
       [[ContentSuggestionsArticleItem alloc] initWithType:0
                                                     title:title
                                                  subtitle:subtitle
                                                  delegate:niceDelegateMock
                                                       url:url];
 
   OCMExpect([niceDelegateMock loadImageForArticleItem:item]);
   ContentSuggestionsArticleCell* cell = [[[item cellClass] alloc] init];
-  ASSERT_EQ(nil, item.image);
+  ASSERT_NE(nil, item.image);
   [item configureCell:cell];
   ASSERT_OCMOCK_VERIFY(niceDelegateMock);
 
   id strictDelegateMock =
       OCMStrictProtocolMock(@protocol(ContentSuggestionsArticleItemDelegate));
   item.delegate = strictDelegateMock;
 
   // Action.
   [item configureCell:cell];
 
   // Tests.
-  EXPECT_EQ(nil, cell.imageView.image);
+  EXPECT_EQ(item.image, cell.imageView.image);
   EXPECT_EQ(title, cell.titleLabel.text);
   EXPECT_EQ(subtitle, cell.subtitleLabel.text);
 }
 
 }  // namespace