Fix spec helpers for callback queries

spec/telegram/bot/rspec/integration_spec.rb

@@ -69,4 +69,44 @@ RSpec.describe 'Integrations helper', :telegram_bot do
       it { should respond_with_message "Start: #{args[0...-1].inspect}, option: 1" }
     end
   end
+
+  describe 'callback queries', :callback_query do
+    let(:controller) do
+      Class.new(Telegram::Bot::UpdatesController) do
+        include Telegram::Bot::UpdatesController::CallbackQueryContext
+
+        def callback_query(data = nil, *)
+          answer_callback_query "data: #{data}"
+        end
+
+        def context_callback_query(data = nil, *)
+          answer_callback_query "data: #{data}", extra: :param
+        end
+
+        def answer_and_edit_callback_query(data = nil, *)
+          answer_callback_query "data: #{data}"
+          edit_message :text, text: 'edited-text', extra: :param
+        end
+      end
+    end
+
+    describe '#callback_query' do
+      let(:data) { 'unknown:command' }
+      it { should answer_callback_query("data: #{data}") }
+    end
+
+    describe '#context_callback_query' do
+      let(:data) { 'context:test:payload' }
+      it { should answer_callback_query('data: test:payload', extra: :param) }
+      it { should_not edit_current_message(:text) }
+    end
+
+    describe '#answer_and_edit_callback_query' do
+      let(:data) { 'answer_and_edit:test:payload' }
+      it do
+        should answer_callback_query(/test:payload/).
+          and edit_current_message(:text, text: /edited/, extra: :param)
+      end
+    end
+  end
 end