Migration to remove pending delete projects with non-existing namespace

There might be some projects where the namespace was removed, but the
project wasn't. For these the projects still have a `namespace_id`
set. So this adds a post-deploy migration remove all projects that are
pending delete, and have a `namespace_id` that is non-existing.

1 files changed, 14 insertions, 0 deletions

diff --git a/spec/workers/namespaceless_project_destroy_worker_spec.rb b/spec/workers/namespaceless_project_destroy_worker_spec.rb
index 817e103fd9a..20cf580af8a 100644
--- a/spec/workers/namespaceless_project_destroy_worker_spec.rb
+++ b/spec/workers/namespaceless_project_destroy_worker_spec.rb
@@ -75,5 +75,19 @@ describe NamespacelessProjectDestroyWorker do
         end
       end
     end
+
+    context 'project has non-existing namespace' do
+      let!(:project) do
+        project = build(:project, namespace_id: Namespace.maximum(:id).to_i.succ)
+        project.save(validate: false)
+        project
+      end
+
+      it 'deletes the project' do
+        subject.perform(project.id)
+
+        expect(Project.unscoped.all).not_to include(project)
+      end
+    end
   end
 end