1 files changed, 36 insertions, 0 deletions
diff --git a/spec/lib/gitlab/database/partitioning_spec.rb b/spec/lib/gitlab/database/partitioning_spec.rb
new file mode 100644
index 00000000000..f163b45e01e
--- /dev/null
+++ b/spec/lib/gitlab/database/partitioning_spec.rb
@@ -0,0 +1,36 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe Gitlab::Database::Partitioning do
+  describe '.sync_partitions' do
+    let(:partition_manager_class) { described_class::MultiDatabasePartitionManager }
+    let(:partition_manager) { double('partition manager') }
+
+    context 'when no partitioned models are given' do
+      it 'calls the partition manager with the registered models' do
+        expect(partition_manager_class).to receive(:new)
+          .with(described_class.registered_models)
+          .and_return(partition_manager)
+
+        expect(partition_manager).to receive(:sync_partitions)
+
+        described_class.sync_partitions
+      end
+    end
+
+    context 'when partitioned models are given' do
+      it 'calls the partition manager with the given models' do
+        models = ['my special model']
+
+        expect(partition_manager_class).to receive(:new)
+          .with(models)
+          .and_return(partition_manager)
+
+        expect(partition_manager).to receive(:sync_partitions)
+
+        described_class.sync_partitions(models)
+      end
+    end
+  end
+end