1 files changed, 32 insertions, 0 deletions
diff --git a/spec/lib/gitlab/database/reindexing_spec.rb b/spec/lib/gitlab/database/reindexing_spec.rb
new file mode 100644
index 00000000000..86b3c029944
--- /dev/null
+++ b/spec/lib/gitlab/database/reindexing_spec.rb
@@ -0,0 +1,32 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe Gitlab::Database::Reindexing do
+  include ExclusiveLeaseHelpers
+
+  describe '.perform' do
+    subject { described_class.perform(indexes) }
+
+    let(:coordinator) { instance_double(Gitlab::Database::Reindexing::Coordinator) }
+    let(:indexes) { double }
+
+    it 'delegates to Coordinator' do
+      expect(Gitlab::Database::Reindexing::Coordinator).to receive(:new).with(indexes).and_return(coordinator)
+      expect(coordinator).to receive(:perform)
+
+      subject
+    end
+  end
+
+  describe '.candidate_indexes' do
+    subject { described_class.candidate_indexes }
+
+    it 'retrieves regular indexes that are no left-overs from previous runs' do
+      result = double
+      expect(Gitlab::Database::PostgresIndex).to receive_message_chain('regular.not_match.not_match').with(no_args).with('^tmp_reindex_').with('^old_reindex_').and_return(result)
+
+      expect(subject).to eq(result)
+    end
+  end
+end