1 files changed, 33 insertions, 0 deletions
diff --git a/gems/click_house-client/spec/click_house/client/bind_index_manager_spec.rb b/gems/click_house-client/spec/click_house/client/bind_index_manager_spec.rb
new file mode 100644
index 00000000000..38e0865676a
--- /dev/null
+++ b/gems/click_house-client/spec/click_house/client/bind_index_manager_spec.rb
@@ -0,0 +1,33 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe ClickHouse::Client::BindIndexManager do
+  describe '#next_bind_str' do
+    context 'when initialized without a start index' do
+      let(:bind_manager) { described_class.new }
+
+      it 'starts from index 1 by default' do
+        expect(bind_manager.next_bind_str).to eq('$1')
+      end
+
+      it 'increments the bind string on subsequent calls' do
+        bind_manager.next_bind_str
+        expect(bind_manager.next_bind_str).to eq('$2')
+      end
+    end
+
+    context 'when initialized with a start index' do
+      let(:bind_manager) { described_class.new(2) }
+
+      it 'starts from the given index' do
+        expect(bind_manager.next_bind_str).to eq('$2')
+      end
+
+      it 'increments the bind string on subsequent calls' do
+        bind_manager.next_bind_str
+        expect(bind_manager.next_bind_str).to eq('$3')
+      end
+    end
+  end
+end