[Multiple issue assignees] fix some more specs

app/finders/issues_finder.rb

@@ -28,15 +28,15 @@ class IssuesFinder < IssuableFinder
 
   def by_assignee(items)
     if assignee
-      items = items.where("issue_assignees.user_id = ?", assignee.id)
+      items.assigned_to(assignee)
     elsif no_assignee?
-      items = items.where("issue_assignees.user_id is NULL")
+      items.unassigned
     elsif assignee_id? || assignee_username? # assignee not found
-      items = items.none
-    end
-
+      items.none
+    else
       items
     end
+  end
 
   def self.not_restricted_by_confidentiality(user)
     issues = Issue.with_assignees

lib/api/v3/merge_requests.rb

@@ -32,7 +32,7 @@ module API
             if project.has_external_issue_tracker?
               ::API::Entities::ExternalIssue
             else
-              ::API::Entities::Issue
+              ::API::V3::Entities::Issue
             end
           end
 

lib/api/v3/milestones.rb

@@ -39,7 +39,7 @@ module API
         end
 
         desc 'Get all issues for a single project milestone' do
-          success ::API::Entities::Issue
+          success ::API::V3::Entities::Issue
         end
         params do
           requires :milestone_id, type: Integer, desc: 'The ID of a project milestone'
@@ -56,7 +56,7 @@ module API
           }
 
           issues = IssuesFinder.new(current_user, finder_params).execute
-          present paginate(issues), with: ::API::Entities::Issue, current_user: current_user, project: user_project
+          present paginate(issues), with: ::API::V3::Entities::Issue, current_user: current_user, project: user_project
         end
       end
     end

spec/support/features/issuable_slash_commands_shared_examples.rb

@@ -63,7 +63,7 @@ shared_examples 'issuable record that supports slash commands in its description
         note = issuable.notes.user.first
 
         expect(note.note).to eq "Awesome!"
-        expect(issuable.assignee).to eq assignee
+        expect(issuable.assignees).to eq [assignee]
         expect(issuable.labels).to eq [label_bug]
         expect(issuable.milestone).to eq milestone
       end
@@ -81,7 +81,7 @@ shared_examples 'issuable record that supports slash commands in its description
         issuable.reload
 
         expect(issuable.notes.user).to be_empty
-        expect(issuable.assignee).to eq assignee
+        expect(issuable.assignees).to eq [assignee]
         expect(issuable.labels).to eq [label_bug]
         expect(issuable.milestone).to eq milestone
       end