Add unique index to subscriptions on subscribable and user and project

1 files changed, 6 insertions, 0 deletions

diff --git a/spec/models/subscription_spec.rb b/spec/models/subscription_spec.rb
index 6cd6e01d0c7..ab674958387 100644
--- a/spec/models/subscription_spec.rb
+++ b/spec/models/subscription_spec.rb
@@ -11,5 +11,11 @@ describe Subscription, models: true do
     it { is_expected.to validate_presence_of(:project) }
     it { is_expected.to validate_presence_of(:subscribable) }
     it { is_expected.to validate_presence_of(:user) }
+
+    it 'validates uniqueness of project_id scoped to subscribable_id, subscribable_type, and user_id' do
+      create(:subscription)
+
+      expect(subject).to validate_uniqueness_of(:project_id).scoped_to([:subscribable_id, :subscribable_type, :user_id])
+    end
   end
 end