1 files changed, 36 insertions, 0 deletions
diff --git a/spec/lib/gitlab/database/partitioning/multi_database_partition_manager_spec.rb b/spec/lib/gitlab/database/partitioning/multi_database_partition_manager_spec.rb
new file mode 100644
index 00000000000..3c94c1bf4ea
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+++ b/spec/lib/gitlab/database/partitioning/multi_database_partition_manager_spec.rb
@@ -0,0 +1,36 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe Gitlab::Database::Partitioning::MultiDatabasePartitionManager, '#sync_partitions' do
+  subject(:sync_partitions) { manager.sync_partitions }
+
+  let(:manager) { described_class.new(models) }
+  let(:models) { [model1, model2] }
+
+  let(:model1) { double('model1', connection: connection1, table_name: 'table1') }
+  let(:model2) { double('model2', connection: connection1, table_name: 'table2') }
+
+  let(:connection1) { double('connection1') }
+  let(:connection2) { double('connection2') }
+
+  let(:target_manager_class) { Gitlab::Database::Partitioning::PartitionManager }
+  let(:target_manager1) { double('partition manager') }
+  let(:target_manager2) { double('partition manager') }
+
+  before do
+    allow(manager).to receive(:connection_name).and_return('name')
+  end
+
+  it 'syncs model partitions, setting up the appropriate connection for each', :aggregate_failures do
+    expect(Gitlab::Database::SharedModel).to receive(:using_connection).with(model1.connection).and_yield.ordered
+    expect(target_manager_class).to receive(:new).with(model1).and_return(target_manager1).ordered
+    expect(target_manager1).to receive(:sync_partitions)
+
+    expect(Gitlab::Database::SharedModel).to receive(:using_connection).with(model2.connection).and_yield.ordered
+    expect(target_manager_class).to receive(:new).with(model2).and_return(target_manager2).ordered
+    expect(target_manager2).to receive(:sync_partitions)
+
+    sync_partitions
+  end
+end