Controller#respond_with to reply without reply_to_message_id

spec/telegram/bot/updates_controller/reply_helpers_spec.rb

@@ -1,36 +1,49 @@
 RSpec.describe Telegram::Bot::UpdatesController do
   include_context 'telegram/bot/updates_controller'
+  let(:params) { {arg: 1, 'other_arg' => 2} }
+  let(:respond_type) { :photo }
+  let(:result) { double(:result) }
+  let(:payload_type) { :message }
+  let(:payload) { {message_id: double(:message_id)} }
+  let(:chat) { {'id' => double(:chat_id)} }
+
+  shared_examples 'missing chat' do
+    context 'when chat is missing' do
+      let(:payload_type) { :some_type }
+      it { expect { subject }.to raise_error(/chat/) }
+    end
+  end
+
+  describe '#respond_with' do
+    subject { controller.respond_with respond_type, params }
+    include_examples 'missing chat'
+
+    it 'sets chat_id & reply_to_message_id' do
+      expect(controller).to receive(:chat) { chat }
+      expect(bot).to receive("send_#{respond_type}").
+        with(params.merge(chat_id: chat['id'])) { result }
+      should eq result
+    end
+  end
 
   describe '#reply_with' do
-    subject { controller.reply_with type, params }
-    let(:params) { {arg: 1, 'other_arg' => 2} }
-    let(:type) { :photo }
-    let(:result) { double(:result) }
-    let(:payload_type) { :message }
-    let(:payload) { {message_id: double(:message_id)} }
-    let(:chat) { {'id' => double(:chat_id)} }
+    subject { controller.reply_with respond_type, params }
+    include_examples 'missing chat'
 
-    it 'sets chat_id & reply_to_message' do
+    it 'sets chat_id & reply_to_message_id' do
       expect(controller).to receive(:chat) { chat }
-      expect(bot).to receive("send_#{type}").with(params.merge(
+      expect(bot).to receive("send_#{respond_type}").with(params.merge(
         chat_id: chat['id'],
         reply_to_message_id: payload[:message_id],
       )) { result }
       should eq result
     end
 
-    context 'when chat is missing' do
-      let(:payload_type) { :some_type }
-      it { expect { subject }.to raise_error(/chat/) }
-    end
-
     context 'when update is not set' do
       let(:update) { {chat: chat} }
-      it 'sets chat_id & reply_to_message' do
-        expect(bot).to receive("send_#{type}").with(params.merge(
-          chat_id: chat['id'],
-          reply_to_message_id: nil,
-        )) { result }
+      it 'sets chat_id' do
+        expect(bot).to receive("send_#{respond_type}").
+          with(params.merge(chat_id: chat['id'])) { result }
         should eq result
       end
     end