1 files changed, 28 insertions, 0 deletions
diff --git a/spec/models/concerns/approvable_base_spec.rb b/spec/models/concerns/approvable_base_spec.rb
index c7ea2631a24..79053e98db7 100644
--- a/spec/models/concerns/approvable_base_spec.rb
+++ b/spec/models/concerns/approvable_base_spec.rb
@@ -60,6 +60,34 @@ RSpec.describe ApprovableBase do
     end
   end
 
+  describe '#can_be_unapproved_by?' do
+    subject { merge_request.can_be_unapproved_by?(user) }
+
+    before do
+      merge_request.project.add_developer(user)
+    end
+
+    it 'returns false' do
+      is_expected.to be_falsy
+    end
+
+    context 'when a user has approved' do
+      let!(:approval) { create(:approval, merge_request: merge_request, user: user) }
+
+      it 'returns true' do
+        is_expected.to be_truthy
+      end
+    end
+
+    context 'when a user is nil' do
+      let(:user) { nil }
+
+      it 'returns false' do
+        is_expected.to be_falsy
+      end
+    end
+  end
+
   describe '.not_approved_by_users_with_usernames' do
     subject { MergeRequest.not_approved_by_users_with_usernames([user.username, user2.username]) }