1 files changed, 31 insertions, 0 deletions
diff --git a/spec/models/service_desk_setting_spec.rb b/spec/models/service_desk_setting_spec.rb
index ca57a5d4087..8ccbd983ba1 100644
--- a/spec/models/service_desk_setting_spec.rb
+++ b/spec/models/service_desk_setting_spec.rb
@@ -31,6 +31,37 @@ RSpec.describe ServiceDeskSetting do
     end
   end
 
+  describe '.valid_project_key' do
+    # Creates two projects with same full path slug
+    # group1/test/one and group1/test-one will both have 'group-test-one' slug
+    let_it_be(:group) { create(:group) }
+    let_it_be(:subgroup) { create(:group, parent: group, name: 'test') }
+    let_it_be(:project1) { create(:project, name: 'test-one', group: group) }
+    let_it_be(:project2) { create(:project, name: 'one', group: subgroup) }
+    let_it_be(:project_key) { 'key' }
+
+    before_all do
+      create(:service_desk_setting, project: project1, project_key: project_key)
+    end
+
+    context 'when project_key is unique for every project slug' do
+      it 'does not add error' do
+        settings = build(:service_desk_setting, project: project2, project_key: 'otherkey')
+
+        expect(settings).to be_valid
+      end
+    end
+
+    context 'when project with same slug and settings project_key exists' do
+      it 'adds error' do
+        settings = build(:service_desk_setting, project: project2, project_key: project_key)
+
+        expect(settings).to be_invalid
+        expect(settings.errors[:project_key].first).to eq('already in use for another service desk address.')
+      end
+    end
+  end
+
   describe 'associations' do
     it { is_expected.to belong_to(:project) }
   end