+ def test_show_no_og_description
+ user = create(:user)
+ diary_entry = create(:diary_entry, :user => user, :body => "![nope](https://example.com/nope.jpg)")
+
+ get diary_entry_path(user, diary_entry)
+ assert_response :success
+ assert_dom "head meta[property='og:description']" do
+ assert_dom "> @content", I18n.t("layouts.intro_text")
+ end
+ end
+
+ def test_show_og_description
+ user = create(:user)
+ diary_entry = create(:diary_entry, :user => user, :body => "# Hello\n\n![hello](https://example.com/hello.jpg)\n\nFirst paragraph.\n\nSecond paragraph.")
+
+ get diary_entry_path(user, diary_entry)
+ assert_response :success
+ assert_dom "head meta[property='og:description']" do
+ assert_dom "> @content", "First paragraph."
+ end
+ end
+
+ def test_show_article_published_time
+ user = create(:user)
+ diary_entry = create(:diary_entry, :user => user, :created_at => "2020-03-04")
+
+ get diary_entry_path(user, diary_entry)
+ assert_response :success
+ assert_dom "head meta[property='article:published_time']" do
+ assert_dom "> @content", "2020-03-04T00:00:00Z"
+ end
+ end
+