1 files changed, 25 insertions, 0 deletions
diff --git a/spec/workers/schedule_migrate_external_diffs_worker_spec.rb b/spec/workers/schedule_migrate_external_diffs_worker_spec.rb
new file mode 100644
index 00000000000..9d6fecc9f4e
--- /dev/null
+++ b/spec/workers/schedule_migrate_external_diffs_worker_spec.rb
@@ -0,0 +1,25 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe ScheduleMigrateExternalDiffsWorker do
+  include ExclusiveLeaseHelpers
+
+  let(:worker) { described_class.new }
+
+  describe '#perform' do
+    it 'triggers a scan for diffs to migrate' do
+      expect(MergeRequests::MigrateExternalDiffsService).to receive(:enqueue!)
+
+      worker.perform
+    end
+
+    it 'will not run if the lease is already taken' do
+      stub_exclusive_lease_taken('schedule_migrate_external_diffs_worker', timeout: 2.hours)
+
+      expect(MergeRequests::MigrateExternalDiffsService).not_to receive(:enqueue!)
+
+      worker.perform
+    end
+  end
+end