1 files changed, 27 insertions, 0 deletions
diff --git a/spec/models/namespaces/project_namespace_spec.rb b/spec/models/namespaces/project_namespace_spec.rb
new file mode 100644
index 00000000000..f38e8aa85d0
--- /dev/null
+++ b/spec/models/namespaces/project_namespace_spec.rb
@@ -0,0 +1,27 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe Namespaces::ProjectNamespace, type: :model do
+  describe 'relationships' do
+    it { is_expected.to have_one(:project).with_foreign_key(:project_namespace_id).inverse_of(:project_namespace) }
+  end
+
+  describe 'validations' do
+    it { is_expected.not_to validate_presence_of :owner }
+  end
+
+  context 'when deleting project namespace' do
+    # using delete rather than destroy due to `delete` skipping AR hooks/callbacks
+    # so it's ensured to work at the DB level. Uses ON DELETE CASCADE on foreign key
+    let_it_be(:project) { create(:project) }
+    let_it_be(:project_namespace) { create(:project_namespace, project: project) }
+
+    it 'also deletes the associated project' do
+      project_namespace.delete
+
+      expect { project_namespace.reload }.to raise_error(ActiveRecord::RecordNotFound)
+      expect { project.reload }.to raise_error(ActiveRecord::RecordNotFound)
+    end
+  end
+end