1 files changed, 66 insertions, 0 deletions
diff --git a/spec/services/achievements/revoke_service_spec.rb b/spec/services/achievements/revoke_service_spec.rb
new file mode 100644
index 00000000000..c9925f1e3df
--- /dev/null
+++ b/spec/services/achievements/revoke_service_spec.rb
@@ -0,0 +1,66 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe Achievements::RevokeService, feature_category: :user_profile do
+  describe '#execute' do
+    let_it_be(:developer) { create(:user) }
+    let_it_be(:maintainer) { create(:user) }
+    let_it_be(:group) { create(:group) }
+    let_it_be(:achievement) { create(:achievement, namespace: group) }
+    let_it_be(:user_achievement) { create(:user_achievement, achievement: achievement) }
+
+    let(:user_achievement_param) { user_achievement }
+
+    subject(:response) { described_class.new(current_user, user_achievement_param).execute }
+
+    before_all do
+      group.add_developer(developer)
+      group.add_maintainer(maintainer)
+    end
+
+    context 'when user does not have permission' do
+      let(:current_user) { developer }
+
+      it 'returns an error' do
+        expect(response).to be_error
+        expect(response.message).to match_array(
+          ['You have insufficient permissions to revoke this achievement'])
+      end
+    end
+
+    context 'when user has permission' do
+      let(:current_user) { maintainer }
+
+      it 'revokes an achievement' do
+        expect(response).to be_success
+      end
+
+      context 'when the achievement has already been revoked' do
+        let_it_be(:revoked_achievement) { create(:user_achievement, :revoked, achievement: achievement) }
+        let(:user_achievement_param) { revoked_achievement }
+
+        it 'returns the correct error' do
+          expect(response).to be_error
+          expect(response.message)
+            .to contain_exactly('This achievement has already been revoked')
+        end
+      end
+
+      context 'when the user achievement fails to save' do
+        let(:user_achievement_param) { instance_double('Achievements::UserAchievement') }
+
+        it 'returns the correct error' do
+          allow(user_achievement_param).to receive(:save).and_return(false)
+          allow(user_achievement_param).to receive(:achievement).and_return(achievement)
+          allow(user_achievement_param).to receive(:revoked?).and_return(false)
+          allow(user_achievement_param).to receive(:errors).and_return(nil)
+          expect(user_achievement_param).to receive(:assign_attributes)
+
+          expect(response).to be_error
+          expect(response.message).to match_array(["Failed to revoke achievement"])
+        end
+      end
+    end
+  end
+end