1 files changed, 44 insertions, 0 deletions
diff --git a/spec/migrations/ensure_namespace_settings_creation_spec.rb b/spec/migrations/ensure_namespace_settings_creation_spec.rb
new file mode 100644
index 00000000000..8574063f7fe
--- /dev/null
+++ b/spec/migrations/ensure_namespace_settings_creation_spec.rb
@@ -0,0 +1,44 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+require Rails.root.join('db', 'post_migrate', '20201104124300_ensure_namespace_settings_creation.rb')
+
+RSpec.describe EnsureNamespaceSettingsCreation do
+  context 'when there are namespaces without namespace settings' do
+    let(:namespaces) { table(:namespaces) }
+    let(:namespace_settings) { table(:namespace_settings) }
+    let!(:namespace) { namespaces.create!(name: 'gitlab', path: 'gitlab-org') }
+    let!(:namespace_2) { namespaces.create!(name: 'gitlab', path: 'gitlab-org2') }
+
+    it 'migrates namespaces without namespace_settings' do
+      stub_const("#{described_class.name}::BATCH_SIZE", 2)
+
+      Sidekiq::Testing.fake! do
+        freeze_time do
+          migrate!
+
+          expect(described_class::MIGRATION)
+            .to be_scheduled_delayed_migration(2.minutes.to_i, namespace.id, namespace_2.id)
+        end
+      end
+    end
+
+    it 'schedules migrations in batches ' do
+      stub_const("#{described_class.name}::BATCH_SIZE", 2)
+
+      namespace_3 = namespaces.create!(name: 'gitlab', path: 'gitlab-org3')
+      namespace_4 = namespaces.create!(name: 'gitlab', path: 'gitlab-org4')
+
+      Sidekiq::Testing.fake! do
+        freeze_time do
+          migrate!
+
+          expect(described_class::MIGRATION)
+            .to be_scheduled_delayed_migration(2.minutes.to_i, namespace.id, namespace_2.id)
+          expect(described_class::MIGRATION)
+            .to be_scheduled_delayed_migration(4.minutes.to_i, namespace_3.id, namespace_4.id)
+        end
+      end
+    end
+  end
+end