Merge branch 'ld-wiki_spec' into 'master'

Optimise WikiPage spec

See merge request gitlab-org/gitlab!42796

app/models/wiki.rb

@@ -106,7 +106,7 @@ class Wiki
     [WikiDirectory.group_pages(pages), limited]
   end
 
-  # Finds a page within the repository based on a tile
+  # Finds a page within the repository based on a title
   # or slug.
   #
   # title - The human readable or parameterized title of

spec/factories/wikis.rb

@@ -4,7 +4,7 @@ FactoryBot.define do
   factory :wiki do
     transient do
       container { association(:project) }
-      user { association(:user) }
+      user { container.default_owner || association(:user) }
     end
 
     initialize_with { Wiki.for_container(container, user) }