tests: add missing controller tests.

test/factories/forum_topic_visit.rb

@@ -1,3 +1,6 @@
 FactoryBot.define do
-  factory(:forum_topic_visit)
+  factory(:forum_topic_visit) do
+    user
+    forum_topic
+  end
 end

test/factories/pixiv_ugoira_frame_data.rb

@@ -0,0 +1,12 @@
+FactoryBot.define do
+  factory(:pixiv_ugoira_frame_data) do
+    post
+    content_type { "image/jpeg" }
+    data do
+      [
+        { "file" => "000000.jpg", "delay" => 200 },
+        { "file" => "000001.jpg", "delay" => 200 },
+      ]
+    end
+  end
+end

test/factories/post_appeal.rb

@@ -1,7 +1,7 @@
 FactoryBot.define do
   factory(:post_appeal) do
     creator
-    post
+    post { build(:post, is_deleted: true) }
     reason {"xxx"}
   end
 end