Validate if project label title does not exist at group level

1 files changed, 34 insertions, 0 deletions

diff --git a/spec/models/project_label_spec.rb b/spec/models/project_label_spec.rb
index 93062b9d402..355bb2a938c 100644
--- a/spec/models/project_label_spec.rb
+++ b/spec/models/project_label_spec.rb
@@ -7,5 +7,39 @@ describe ProjectLabel, models: true do
 
   describe 'validations' do
     it { is_expected.to validate_presence_of(:project) }
+
+    context 'validates if title must not exist at group level' do
+      let(:group) { create(:group, name: 'gitlab-org') }
+      let(:project) { create(:empty_project, group: group) }
+
+      before do
+        create(:group_label, group: group, title: 'Bug')
+      end
+
+      it 'returns error if title already exists at group level' do
+        label = described_class.new(project: project, title: 'Bug')
+
+        label.valid?
+
+        expect(label.errors[:title]).to include 'already exists at group level for gitlab-org. Please choose another one.'
+      end
+
+      it 'does not returns error if title does not exist at group level' do
+        label = described_class.new(project: project, title: 'Security')
+
+        label.valid?
+
+        expect(label.errors[:title]).to be_empty
+      end
+
+      it 'does not returns error if project does not belong to group' do
+        another_project = create(:empty_project)
+        label = described_class.new(project: another_project, title: 'Bug')
+
+        label.valid?
+
+        expect(label.errors[:title]).to be_empty
+      end
+    end
   end
 end