Inegration context for RSpec

ActionDispatch::Testing::Integration requires smth else and
defines Rails, so had to change `defined?(Rails)` all over the code.

lib/telegram/bot/config_methods.rb

@@ -20,7 +20,7 @@ module Telegram
       def bot_poller_mode?
         return @bot_poller_mode if defined?(@bot_poller_mode)
         @bot_poller_mode = ENV.fetch('BOT_POLLER_MODE') do
-          Rails.env.development? if defined?(Rails)
+          Rails.env.development? if defined?(Rails.env)
         end
       end
 
@@ -47,7 +47,7 @@ module Telegram
       # Can be overwritten with .bots_config=
       def bots_config
         @bots_config ||=
-          if defined?(Rails)
+          if defined?(Rails.application)
             telegram_config = Rails.application.secrets[:telegram] || {}
             (telegram_config['bots'] || {}).symbolize_keys.tap do |config|
               default = telegram_config['bot']

lib/telegram/bot/rspec/integration.rb

@@ -0,0 +1,49 @@
+RSpec.shared_context 'telegram/bot/integration' do
+  let(:bot) { Telegram.bot }
+  let(:from_id) { 123 }
+  let(:chat_id) { 456 }
+  let(:default_message_options) { {from: {id: from_id}, chat: {id: chat_id}} }
+  let(:controller_path) do
+    route_name = Telegram::Bot::RoutesHelper.route_name_for_bot(bot)
+    Rails.application.routes.url_helpers.public_send("#{route_name}_path")
+  end
+  let(:request_headers) do
+    {
+      'ACCEPT' => 'application/json',
+      'Content-Type' => 'application/json',
+    }
+  end
+  let(:clear_session?) { described_class.respond_to?(:session_store) }
+  before { described_class.session_store.clear if clear_session? }
+
+  include Telegram::Bot::RSpec::ClientMatchers
+
+  def dispatch(update)
+    if ActionPack::VERSION::MAJOR >= 5
+      post(controller_path, params: update.to_json, headers: request_headers)
+    else
+      post(controller_path, update.to_json, request_headers)
+    end
+  end
+
+  def dispatch_message(text, options = {})
+    dispatch message: default_message_options.merge(options).merge(text: text)
+  end
+
+  def dispatch_command(*args)
+    options = args.last.is_a?(Hash) ? args.pop : {}
+    dispatch_message("/#{args.join ' '}", options)
+  end
+
+  # Matcher to check response. Make sure to define `let(:chat_id)`.
+  def respond_with_message(expected)
+    raise 'Define chat_id to use respond_with_message' unless defined?(chat_id)
+    send_telegram_message(bot, expected, chat_id: chat_id)
+  end
+end
+
+RSpec.configure do |config|
+  if config.respond_to?(:include_context)
+    config.include_context 'telegram/bot/integration', :telegram_bot
+  end
+end

lib/telegram/bot/updates_controller/rspec_helpers.rb

@@ -13,6 +13,9 @@ RSpec.shared_context 'telegram/bot/updates_controller' do
   let(:bot) { Telegram::Bot::ClientStub.new(bot_name) }
   let(:bot_name) { 'bot' }
   let(:session) { controller.send(:session) }
+  let(:from_id) { 123 }
+  let(:chat_id) { 456 }
+  let(:default_message_options) { {from: {id: from_id}, chat: {id: chat_id}} }
 
   include Telegram::Bot::RSpec::ClientMatchers
 
@@ -20,9 +23,8 @@ RSpec.shared_context 'telegram/bot/updates_controller' do
     controller.dispatch_again(bot, update)
   end
 
-  def dispatch_message(text, options = nil)
-    options ||= respond_to?(:default_message_options) ? default_message_options : {}
-    update = build_update :message, options.merge(text: text)
+  def dispatch_message(text, options = {})
+    update = build_update :message, default_message_options.merge(options).merge(text: text)
     dispatch bot, update
   end
 
@@ -43,3 +45,9 @@ RSpec.shared_context 'telegram/bot/updates_controller' do
     send_telegram_message(bot, expected, chat_id: chat_id)
   end
 end
+
+RSpec.configure do |config|
+  if config.respond_to?(:include_context)
+    config.include_context 'telegram/bot/updates_controller', type: :telegram_bot_controller
+  end
+end

lib/telegram/bot/updates_poller.rb

@@ -27,12 +27,12 @@ module Telegram
       attr_reader :bot, :controller, :timeout, :offset, :logger, :running, :reload
 
       def initialize(bot, controller, **options)
-        @logger = options.fetch(:logger) { defined?(Rails) && Rails.logger }
+        @logger = options.fetch(:logger) { defined?(Rails.logger) && Rails.logger }
         @bot = bot
         @controller = controller
         @timeout = options.fetch(:timeout) { DEFAULT_TIMEOUT }
         @offset = options[:offset]
-        @reload = options.fetch(:reload) { defined?(Rails) && Rails.env.development? }
+        @reload = options.fetch(:reload) { defined?(Rails.env) && Rails.env.development? }
       end
 
       def log(&block)
@@ -85,7 +85,7 @@ module Telegram
         end
       end
 
-      if defined?(Rails) && Rails.application.respond_to?(:reloader)
+      if defined?(Rails.application) && Rails.application.respond_to?(:reloader)
         def reloading_code
           Rails.application.reloader.wrap do
             yield