1 files changed, 56 insertions, 1 deletions
diff --git a/spec/models/issue_spec.rb b/spec/models/issue_spec.rb
index 8ab00c70f9d..b87d68283e6 100644
--- a/spec/models/issue_spec.rb
+++ b/spec/models/issue_spec.rb
@@ -192,7 +192,7 @@ describe Issue, models: true do
                                                source_project: subject.project,
                                                source_branch: "#{subject.iid}-branch" })
       merge_request.create_cross_references!(user)
-      expect(subject.referenced_merge_requests).to_not be_empty
+      expect(subject.referenced_merge_requests).not_to be_empty
       expect(subject.related_branches(user)).to eq([subject.to_branch_name])
     end
 
@@ -231,4 +231,59 @@ describe Issue, models: true do
       expect(issue.to_branch_name).to match /confidential-issue\z/
     end
   end
+
+  describe '#participants' do
+    context 'using a public project' do
+      let(:project) { create(:project, :public) }
+      let(:issue) { create(:issue, project: project) }
+
+      let!(:note1) do
+        create(:note_on_issue, noteable: issue, project: project, note: 'a')
+      end
+
+      let!(:note2) do
+        create(:note_on_issue, noteable: issue, project: project, note: 'b')
+      end
+
+      it 'includes the issue author' do
+        expect(issue.participants).to include(issue.author)
+      end
+
+      it 'includes the authors of the notes' do
+        expect(issue.participants).to include(note1.author, note2.author)
+      end
+    end
+
+    context 'using a private project' do
+      it 'does not include mentioned users that do not have access to the project' do
+        project = create(:project)
+        user = create(:user)
+        issue = create(:issue, project: project)
+
+        create(:note_on_issue,
+               noteable: issue,
+               project: project,
+               note: user.to_reference)
+
+        expect(issue.participants).not_to include(user)
+      end
+    end
+  end
+
+  describe 'cached counts' do
+    it 'updates when assignees change' do
+      user1 = create(:user)
+      user2 = create(:user)
+      issue = create(:issue, assignee: user1)
+
+      expect(user1.assigned_open_issues_count).to eq(1)
+      expect(user2.assigned_open_issues_count).to eq(0)
+
+      issue.assignee = user2
+      issue.save
+
+      expect(user1.assigned_open_issues_count).to eq(0)
+      expect(user2.assigned_open_issues_count).to eq(1)
+    end
+  end
 end