Update merge fork test

Now that Resources don't share attributes, Fork doesn't have Project
attributes. That caused the merge fork test to fail because it no
longer had access to repository_http_location via Fork. Rather than
give Fork Project attributes directly, we add a project attribute to
Fork and populate it via the API at the end of the fabricate! method
after the fork has been created via the UI.

We also update the merge fork test to be slightly more concise and
consistent with newer tests by using perform with proc coercion
instead of act or perform with the full block syntax.

qa/qa/resource/fork.rb

@@ -3,6 +3,13 @@
 module QA
   module Resource
     class Fork < Base
+      attribute :project do
+        Resource::Project.fabricate! do |resource|
+          resource.name = push.project.name
+          resource.path_with_namespace = "#{user.name}/#{push.project.name}"
+        end
+      end
+
       attribute :push do
         Repository::ProjectPush.fabricate!
       end
@@ -37,6 +44,8 @@ module QA
         Page::Layout::Banner.perform do |page|
           page.has_notice?('The project was successfully forked.')
         end
+
+        populate(:project)
       end
     end
   end

qa/qa/resource/merge_request_from_fork.rb

@@ -11,7 +11,7 @@ module QA
 
       attribute :push do
         Repository::ProjectPush.fabricate! do |resource|
-          resource.project = fork
+          resource.project = fork.project
           resource.branch_name = fork_branch
           resource.file_name = 'file2.txt'
           resource.user = fork.user

qa/qa/resource/project.rb

@@ -12,6 +12,10 @@ module QA
         Group.fabricate!
       end
 
+      attribute :path_with_namespace do
+        "#{group.sandbox.path}/#{group.path}/#{name}" if group
+      end
+
       attribute :repository_ssh_location do
         Page::Project::Show.perform do |page|
           page.repository_clone_ssh_location
@@ -46,8 +50,14 @@ module QA
         end
       end
 
+      def fabricate_via_api!
+        resource_web_url(api_get)
+      rescue ResourceNotFoundError
+        super
+      end
+
       def api_get_path
-        "/projects/#{name}"
+        "/projects/#{CGI.escape(path_with_namespace)}"
       end
 
       def api_post_path

qa/qa/specs/features/browser_ui/3_create/merge_request/merge_merge_request_from_fork_spec.rb

@@ -5,18 +5,18 @@ module QA
     describe 'Merge request creation from fork' do
       it 'user forks a project, submits a merge request and maintainer merges it' do
         Runtime::Browser.visit(:gitlab, Page::Main::Login)
-        Page::Main::Login.act { sign_in_using_credentials }
+        Page::Main::Login.perform(&:sign_in_using_credentials)
 
         merge_request = Resource::MergeRequestFromFork.fabricate! do |merge_request|
           merge_request.fork_branch = 'feature-branch'
         end
 
-        Page::Main::Menu.perform { |main| main.sign_out }
-        Page::Main::Login.perform { |login| login.sign_in_using_credentials }
+        Page::Main::Menu.perform(&:sign_out)
+        Page::Main::Login.perform(&:sign_in_using_credentials)
 
         merge_request.visit!
 
-        Page::MergeRequest::Show.perform { |show| show.merge! }
+        Page::MergeRequest::Show.perform(&:merge!)
 
         expect(page).to have_content('The changes were merged')
       end