1 files changed, 15 insertions, 0 deletions
diff --git a/spec/models/user_spec.rb b/spec/models/user_spec.rb
index 3abf2a651a0..393fd53193b 100644
--- a/spec/models/user_spec.rb
+++ b/spec/models/user_spec.rb
@@ -1056,6 +1056,21 @@ RSpec.describe User do
           .to contain_exactly(user)
       end
     end
+
+    describe '.for_todos' do
+      let_it_be(:user1) { create(:user) }
+      let_it_be(:user2) { create(:user) }
+      let_it_be(:issue) { create(:issue) }
+
+      let_it_be(:todo1) { create(:todo, target: issue, author: user1, user: user1) }
+      let_it_be(:todo2) { create(:todo, target: issue, author: user1, user: user1) }
+      let_it_be(:todo3) { create(:todo, target: issue, author: user2, user: user2) }
+
+      it 'returns users for the given todos' do
+        expect(described_class.for_todos(issue.todos))
+          .to contain_exactly(user1, user2)
+      end
+    end
   end
 
   describe "Respond to" do