1 files changed, 85 insertions, 0 deletions
diff --git a/spec/services/clusters/cleanup/project_namespace_service_spec.rb b/spec/services/clusters/cleanup/project_namespace_service_spec.rb
new file mode 100644
index 00000000000..22e29cc57d1
--- /dev/null
+++ b/spec/services/clusters/cleanup/project_namespace_service_spec.rb
@@ -0,0 +1,85 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe Clusters::Cleanup::ProjectNamespaceService do
+  describe '#execute' do
+    subject { service.execute }
+
+    let!(:service) { described_class.new(cluster) }
+    let!(:cluster) { create(:cluster, :with_environments, :cleanup_removing_project_namespaces) }
+    let!(:logger) { service.send(:logger) }
+    let(:log_meta) do
+      {
+        service: described_class.name,
+        cluster_id: cluster.id,
+        execution_count: 0
+      }
+    end
+    let(:kubeclient_instance_double) do
+      instance_double(Gitlab::Kubernetes::KubeClient, delete_namespace: nil, delete_service_account: nil)
+    end
+
+    before do
+      allow_any_instance_of(Clusters::Cluster).to receive(:kubeclient).and_return(kubeclient_instance_double)
+    end
+
+    context 'when cluster has namespaces to be deleted' do
+      it 'deletes namespaces from cluster' do
+        expect(kubeclient_instance_double).to receive(:delete_namespace)
+          .with cluster.kubernetes_namespaces[0].namespace
+        expect(kubeclient_instance_double).to receive(:delete_namespace)
+          .with(cluster.kubernetes_namespaces[1].namespace)
+
+        subject
+      end
+
+      it 'deletes namespaces from database' do
+        expect { subject }.to change { cluster.kubernetes_namespaces.exists? }.from(true).to(false)
+      end
+
+      it 'schedules ::ServiceAccountWorker' do
+        expect(Clusters::Cleanup::ServiceAccountWorker).to receive(:perform_async).with(cluster.id)
+        subject
+      end
+
+      it 'logs all events' do
+        expect(logger).to receive(:info)
+          .with(
+            log_meta.merge(
+              event: :deleting_project_namespace,
+              namespace: cluster.kubernetes_namespaces[0].namespace))
+        expect(logger).to receive(:info)
+          .with(
+            log_meta.merge(
+              event: :deleting_project_namespace,
+              namespace: cluster.kubernetes_namespaces[1].namespace))
+
+        subject
+      end
+    end
+
+    context 'when cluster has no namespaces' do
+      let!(:cluster) { create(:cluster, :cleanup_removing_project_namespaces) }
+
+      it 'schedules Clusters::Cleanup::ServiceAccountWorker' do
+        expect(Clusters::Cleanup::ServiceAccountWorker).to receive(:perform_async).with(cluster.id)
+
+        subject
+      end
+
+      it 'transitions to cleanup_removing_service_account' do
+        expect { subject }
+          .to change { cluster.reload.cleanup_status_name }
+          .from(:cleanup_removing_project_namespaces)
+          .to(:cleanup_removing_service_account)
+      end
+
+      it 'does not try to delete namespaces' do
+        expect(kubeclient_instance_double).not_to receive(:delete_namespace)
+
+        subject
+      end
+    end
+  end
+end