v0.13.0

Setup codeclimate integration

.codeclimate.yml

@@ -0,0 +1,8 @@
+checks:
+  method-complexity:
+    config:
+      threshold: 6 # should be just fine
+
+plugins:
+  rubocop:
+    enabled: true

.rubocop.yml

@@ -1,3 +1,6 @@
+# Rubocop does not support 2.0
+Gemspec/RequiredRubyVersion: {Enabled: false}
+
 Rails: {Enabled: true}
 
 Layout/AlignParameters:

.travis.yml

@@ -1,10 +1,17 @@
 language: ruby
 cache: bundler
 rvm:
-  - 2.2.3
+  - 2.5
+  - 2.4
+  - 2.3
 gemfile:
-  - gemfiles/rails_42.gemfile
-  - gemfiles/rails_50.gemfile
+  - gemfiles/rails_52.gemfile
   - gemfiles/rails_51.gemfile
+  - gemfiles/rails_50.gemfile
+  - gemfiles/rails_42.gemfile
 notifications:
   email: false
+
+# for 2.5.0 until 2.5.1 is released: https://github.com/travis-ci/travis-ci/issues/8978
+before_install:
+  - gem update --system

Appraisals

@@ -1,3 +1,8 @@
+appraise 'rails-52' do
+  gem 'actionpack', '~> 5.2.0.beta2'
+  gem 'railties', '~> 5.2.0.beta2'
+end
+
 appraise 'rails-51' do
   gem 'actionpack', '~> 5.1'
   gem 'railties', '~> 5.1'

CHANGELOG.md

@@ -1,5 +1,12 @@
 # Unreleased
 
+# 0.13.0
+
+- `rescue_from`.
+- Support for `credentials` store in Rails 5.2.
+- Deprecate `telegram_webhooks` in favor of `telegram_webhook`.
+  It was too complicated and such routes looked ugly.
+
 # 0.12.4
 
 - Fix spec helpers for callback queries.

Gemfile

@@ -14,7 +14,7 @@ group :development do
   gem 'rspec-its', '~> 1.1.0'
   gem 'rspec-rails', '~> 3.5.0'
 
-  gem 'rubocop', '~> 0.51.0'
+  gem 'rubocop', '~> 0.52.1'
 
   gem 'coveralls', '~> 0.8.2', require: false
 end

README.md

@@ -130,6 +130,9 @@ can represent actions as separate methods keeping source much more readable and
 New instance of controller is instantiated for each update.
 This way every update is processed in isolation from others.
 
+Bot controllers like usual rails controllers provides features like callbacks,
+`rescue_from` and instrumentation.
+
 ```ruby
 class Telegram::WebhookController < Telegram::Bot::UpdatesController
   # use callbacks like in any other controllers
@@ -325,29 +328,37 @@ Callback queries without prefix stay untouched.
 # This one handles `set_value:%{something}`.
 def set_value_callback_query(new_value = nil, *)
   save_this(value)
-  answer_callback_query('Saved!)
+  answer_callback_query('Saved!')
 end
 
 # And this one is for `make_cool:%{something}`
 def make_cool_callback_query(thing = nil, *)
   do_it(thing)
-  answer_callback_query("#{thing} is cool now! Like a callback query context.") 
+  answer_callback_query("#{thing} is cool now! Like a callback query context.")
 end
 ```
 
 ### Routes in Rails app
 
-There is `telegram_webhooks` helper for rails app to define routes for webhooks.
+There is `telegram_webhook` helper for rails app to define routes for webhooks.
 It defines routes at `telegram/#{bot.token}` and connects bots with controller.
-For more options see [examples in wiki](https://github.com/telegram-bot-rb/telegram-bot/wiki/Routes-helpers-in-details).
 
 ```ruby
-# Create routes for all Telegram.bots using single controller:
-telegram_webhooks TelegramController
+# Most off apps would require
+telegram_webhook TelegramController
+# which is same as
+telegram_webhook TelegramController, :default
 
 # Use different controllers for each bot:
-telegram_webhooks chat: TelegramChatController,
-                  auction: TelegramAuctionController
+telegram_webhook TelegramChatController, :chat
+telegram_webhook TelegramAuctionController, :auction
+
+# Defined route is named and its name depends on `Telegram.bots`.
+# For single bot it will use 'telegram_webhook',
+# for multiple bots it uses bot's key in the `Telegram.bots` as prefix
+# (eg. `chat_telegram_webhook`).
+# You can override this with `as` option:
+telegram_webhook TelegramController, as: :custom_telegram_webhook
 ```
 
 #### Processesing updates
@@ -360,7 +371,7 @@ There are several options to run it automatically:
 - Use poller (described in the next section).
 
 To run action without update (ex., send notifications from jobs),
-you can call `#process` directly. In this case controller can be initialized 
+you can call `#process` directly. In this case controller can be initialized
 with `:from` and/or `:chat` options instead of `update` object:
 
 ```ruby
@@ -374,7 +385,7 @@ Use `rake telegram:bot:poller` to run poller in rails app. It automatically load
 changes without restart in development env.
 Optionally pass bot id in `BOT` envvar (`BOT=chat`) to specify bot to run poller for.
 
-This task requires `telegram_webhooks` helper to be used as it connects bots with controller.
+This task requires `telegram_webhook` helper to be used as it connects bots with controller.
 To run poller in other cases use:
 
 ```ruby
@@ -523,7 +534,7 @@ Yes, it's threadsafe too.
 
 ## Development
 
-After checking out the repo, run `bin/setup` to install dependencies.
+After checking out the repo, run `bin/setup` to install dependencies and git hooks.
 Then, run `appraisal rake spec` to run the tests.
 You can also run `bin/console` for an interactive prompt that will allow you to experiment.
 

gemfiles/rails_42.gemfile

@@ -14,7 +14,7 @@ group :development do
   gem "rspec", "~> 3.5.0"
   gem "rspec-its", "~> 1.1.0"
   gem "rspec-rails", "~> 3.5.0"
-  gem "rubocop", "~> 0.51.0"
+  gem "rubocop", "~> 0.52.1"
   gem "coveralls", "~> 0.8.2", require: false
 end
 

gemfiles/rails_50.gemfile

@@ -14,7 +14,7 @@ group :development do
   gem "rspec", "~> 3.5.0"
   gem "rspec-its", "~> 1.1.0"
   gem "rspec-rails", "~> 3.5.0"
-  gem "rubocop", "~> 0.51.0"
+  gem "rubocop", "~> 0.52.1"
   gem "coveralls", "~> 0.8.2", require: false
 end
 

gemfiles/rails_51.gemfile

@@ -14,7 +14,7 @@ group :development do
   gem "rspec", "~> 3.5.0"
   gem "rspec-its", "~> 1.1.0"
   gem "rspec-rails", "~> 3.5.0"
-  gem "rubocop", "~> 0.51.0"
+  gem "rubocop", "~> 0.52.1"
   gem "coveralls", "~> 0.8.2", require: false
 end
 

gemfiles/rails_52.gemfile

@@ -0,0 +1,21 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "actionpack", "~> 5.2.0.beta2"
+gem "railties", "~> 5.2.0.beta2"
+
+group :development do
+  gem "appraisal", "~> 2.2"
+  gem "pry", "~> 0.10.1"
+  gem "pry-byebug", "~> 3.2.0"
+  gem "sdoc", "~> 0.4.1"
+  gem "telegram-bot-types", "~> 0.3.0"
+  gem "rspec", "~> 3.5.0"
+  gem "rspec-its", "~> 1.1.0"
+  gem "rspec-rails", "~> 3.5.0"
+  gem "rubocop", "~> 0.52.1"
+  gem "coveralls", "~> 0.8.2", require: false
+end
+
+gemspec path: "../"

lib/telegram/bot.rb

@@ -5,9 +5,22 @@ module Telegram
 
   module Bot
     class Error < StandardError; end
-    class NotFound < Error; end
+
+    # Raised for valid telegram response with 403 status code.
     class Forbidden < Error; end
 
+    # Raised for valid telegram response with 404 status code.
+    class NotFound < Error; end
+
+    module_function
+
+    def deprecation_0_14
+      @deprecation ||= begin
+        require 'active_support/deprecation'
+        ActiveSupport::Deprecation.new('0.14', 'Telegram::Bot')
+      end
+    end
+
     autoload :Async,              'telegram/bot/async'
     autoload :Botan,              'telegram/bot/botan'
     autoload :Client,             'telegram/bot/client'

lib/telegram/bot/client.rb

@@ -4,7 +4,7 @@ require 'httpclient'
 module Telegram
   module Bot
     class Client
-      URL_TEMPLATE = 'https://api.telegram.org/bot%s/'.freeze
+      URL_TEMPLATE = 'https://api.telegram.org/bot%<token>s/'.freeze
 
       autoload :TypedResponse, 'telegram/bot/client/typed_response'
       extend Initializers
@@ -36,6 +36,18 @@ module Telegram
         def prepare_async_args(action, body = {})
           [action.to_s, Async.prepare_hash(prepare_body(body))]
         end
+
+        def error_for_response(response)
+          result = JSON.parse(response.body) rescue nil # rubocop:disable RescueModifier
+          return Error.new(response.reason) unless result
+          message = result['description'] || '-'
+          # This errors are raised only for valid responses from Telegram
+          case response.status
+          when 403 then Forbidden.new(message)
+          when 404 then NotFound.new(message)
+          else Error.new("#{response.reason}: #{message}")
+          end
+        end
       end
 
       attr_reader :client, :token, :username, :base_uri
@@ -44,23 +56,13 @@ module Telegram
         @client = HTTPClient.new
         @token = token || options[:token]
         @username = username || options[:username]
-        @base_uri = format URL_TEMPLATE, self.token
+        @base_uri = format(URL_TEMPLATE, token: self.token)
       end
 
       def request(action, body = {})
-        res = http_request("#{base_uri}#{action}", self.class.prepare_body(body))
-        status = res.status
-        return JSON.parse(res.body) if status < 300
-        result = JSON.parse(res.body) rescue nil # rubocop:disable RescueModifier
-        err_msg = result && result['description'] || '-'
-        if result
-          # This errors are raised only for valid responses from Telegram
-          case status
-          when 403 then raise Forbidden, err_msg
-          when 404 then raise NotFound, err_msg
-          end
-        end
-        raise Error, "#{res.reason}: #{err_msg}"
+        response = http_request("#{base_uri}#{action}", self.class.prepare_body(body))
+        raise self.class.error_for_response(response) if response.status >= 300
+        JSON.parse(response.body)
       end
 
       # Endpoint for low-level request. For easy host highjacking & instrumentation.

lib/telegram/bot/config_methods.rb

@@ -53,8 +53,9 @@ module Telegram
       def bots_config
         @bots_config ||=
           if defined?(Rails.application)
-            secrets = Rails.application.secrets.
-              fetch(:telegram, {}).with_indifferent_access
+            app = Rails.application
+            store = app.respond_to?(:credentials) ? app.credentials : app.secrets
+            secrets = store.fetch(:telegram, {}).with_indifferent_access
             secrets.fetch(:bots, {}).symbolize_keys.tap do |config|
               default = secrets[:bot]
               config[:default] = default if default

lib/telegram/bot/routes_helper.rb

@@ -28,40 +28,49 @@ module Telegram
       #   telegram_webhooks TelegramController
       #
       #   # Or pass custom bots usin any of supported config options:
-      #   telegram_webhooks TelegramController,
-      #                     bot,
-      #                     {token: token, username: username},
-      #                     other_bot_token
-      #
-      #   # Use different controllers for each bot:
-      #   telegram_webhooks bot => TelegramChatController,
-      #                     other_bot => TelegramAuctionController
-      #
-      #   # telegram_webhooks creates named routes. See
-      #   # RoutesHelper.route_name_for_bot for more info.
-      #   # You can override this options or specify others:
-      #   telegram_webhooks TelegramController, as: :my_webhook
-      #   telegram_webhooks bot => [TelegramChatController, as: :chat_webhook],
-      #                     other_bot => TelegramAuctionController,
-      #                     admin_chat: TelegramAdminChatController
-      #
+      #   telegram_webhooks TelegramController, [
+      #     bot,
+      #     {token: token, username: username},
+      #     other_bot_token,
+      #   ]
       def telegram_webhooks(controllers, bots = nil, **options)
+        Bot.deprecation_0_14.deprecation_warning(:telegram_webhooks, <<-TXT.strip_heredoc)
+          It brings unnecessary complexity and encourages writeng less readable code.
+          Please use telegram_webhook method instead.
+          It's signature `telegram_webhook(controller, bot = :default, **options)`.
+          Multiple-bot environments now requires calling this method in a loop
+          or using statement for each bot.
+        TXT
         unless controllers.is_a?(Hash)
           bots = bots ? Array.wrap(bots) : Telegram.bots.values
           controllers = Hash[bots.map { |x| [x, controllers] }]
         end
         controllers.each do |bot, controller|
-          bot = Client.wrap(bot)
           controller, bot_options = controller if controller.is_a?(Array)
-          params = {
-            to: Middleware.new(bot, controller),
-            as: RoutesHelper.route_name_for_bot(bot),
-            format: false,
-          }.merge!(options).merge!(bot_options || {})
-          post("telegram/#{RoutesHelper.escape_token bot.token}", params)
-          UpdatesPoller.add(bot, controller) if Telegram.bot_poller_mode?
+          telegram_webhook(controller, bot, options.merge(bot_options || {}))
         end
       end
+
+      # Define route which processes requests using given controller and bot.
+      #
+      #   telegram_webhook TelegramController, bot
+      #
+      #   telegram_webhook TelegramController
+      #   # same as:
+      #   telegram_webhook TelegramController, :default
+      #
+      #   # pass additional options
+      #   telegram_webhook TelegramController, :default, as: :custom_route_name
+      def telegram_webhook(controller, bot = :default, **options)
+        bot = Client.wrap(bot)
+        params = {
+          to: Middleware.new(bot, controller),
+          as: RoutesHelper.route_name_for_bot(bot),
+          format: false,
+        }.merge!(options)
+        post("telegram/#{RoutesHelper.escape_token bot.token}", params)
+        UpdatesPoller.add(bot, controller) if Telegram.bot_poller_mode?
+      end
     end
   end
 end

lib/telegram/bot/updates_controller.rb

@@ -53,12 +53,19 @@ module Telegram
     class UpdatesController < AbstractController::Base # rubocop:disable ClassLength
       abstract!
 
-      require 'telegram/bot/updates_controller/session'
-      require 'telegram/bot/updates_controller/log_subscriber'
-      require 'telegram/bot/updates_controller/instrumentation'
-      require 'telegram/bot/updates_controller/reply_helpers'
-      autoload :CallbackQueryContext, 'telegram/bot/updates_controller/callback_query_context'
-      autoload :MessageContext, 'telegram/bot/updates_controller/message_context'
+      %w[
+        instrumentation
+        log_subscriber
+        reply_helpers
+        rescue
+        session
+      ].each { |file| require "telegram/bot/updates_controller/#{file}" }
+
+      %w[
+        CallbackQueryContext
+        MessageContext
+        TypedUpdate
+      ].each { |mod| autoload mod, "telegram/bot/updates_controller/#{mod.underscore}" }
 
       include AbstractController::Callbacks
       # Redefine callbacks with default terminator.
@@ -72,11 +79,11 @@ module Telegram
       end
 
       include AbstractController::Translation
+      include Rescue
       include ReplyHelpers
-      prepend Instrumentation
-      extend Session::ConfigMethods
+      include Instrumentation
 
-      autoload :TypedUpdate, 'telegram/bot/updates_controller/typed_update'
+      extend Session::ConfigMethods
 
       PAYLOAD_TYPES = %w[
         message
@@ -113,10 +120,17 @@ module Telegram
         # any commands.
         def command_from_text(text, username = nil)
           return unless text
-          match = text.match CMD_REGEX
+          match = text.match(CMD_REGEX)
           return unless match
-          return if match[3] && username != true && match[3] != username
-          [match[1], text.split.drop(1)]
+          mention = match[3]
+          [match[1], text.split.drop(1)] if username == true || !mention || mention == username
+        end
+
+        def payload_from_update(update)
+          update && PAYLOAD_TYPES.find do |type|
+            item = update[type]
+            return [item, type] if item
+          end
         end
       end
 
@@ -135,13 +149,7 @@ module Telegram
         @_update = update
         @_bot = bot
         @_chat, @_from = options && options.values_at(:chat, :from)
-
-        payload_data = nil
-        update && PAYLOAD_TYPES.find do |type|
-          item = update[type]
-          payload_data = [item, type] if item
-        end
-        @_payload, @_payload_type = payload_data
+        @_payload, @_payload_type = self.class.payload_from_update(update)
       end
 
       # Accessor to `'chat'` field of payload. Also tries `'chat'` in `'message'`

lib/telegram/bot/updates_controller/instrumentation.rb

@@ -4,12 +4,13 @@ module Telegram
       # Most methods are taken from ActionController::Instrumentation,
       # some are slightly modified.
       module Instrumentation
-        class << self
-          def prepended(base)
-            base.send :config_accessor, :logger
-            base.extend ClassMethods
-          end
+        extend ActiveSupport::Concern
 
+        included do
+          config_accessor :logger
+        end
+
+        class << self
           def instrument(action, *args, &block)
             ActiveSupport::Notifications.instrument(
               "#{action}.updates_controller.bot.telegram",

lib/telegram/bot/updates_controller/rescue.rb

@@ -0,0 +1,20 @@
+require 'active_support/rescuable'
+
+module Telegram
+  module Bot
+    class UpdatesController
+      module Rescue
+        extend ActiveSupport::Concern
+        include ActiveSupport::Rescuable
+
+        private
+
+        def process_action(*)
+          super
+        rescue Exception => exception # rubocop:disable RescueException
+          rescue_with_handler(exception) || raise
+        end
+      end
+    end
+  end
+end

lib/telegram/bot/updates_poller.rb

@@ -41,40 +41,54 @@ module Telegram
 
       def start
         return if running
-        @running = true
-        log { 'Started bot poller.' }
-        while running
-          begin
-            fetch_updates do |update|
-              controller.dispatch(bot, update)
-            end
-          rescue Interrupt
-            @running = false
-          rescue StandardError => e
-            logger.error { ([e.message] + e.backtrace).join("\n") } if logger
-          end
+        begin
+          @running = true
+          log { 'Started bot poller.' }
+          run
+        rescue Interrupt
+          nil # noop
+        ensure
+          @running = false
         end
-        log { 'Stop polling bot updates.' }
+        log { 'Stoped polling bot updates.' }
       end
 
+      def run
+        while running
+          updates = fetch_updates
+          process_updates(updates) if updates && updates.any?
+        end
+      end
+
+      # Method to stop poller from other thread.
       def stop
         return unless running
-        log { 'Killing polling thread.' }
+        log { 'Stopping polling bot updates.' }
         @running = false
       end
 
-      def fetch_updates
+      def fetch_updates(offset = self.offset)
         response = bot.async(false) { bot.get_updates(offset: offset, timeout: timeout) }
-        updates = response.is_a?(Array) ? response : response['result']
-        return unless updates && updates.any?
+        response.is_a?(Array) ? response : response['result']
+      rescue Timeout::Error
+        log { 'Fetch timeout' }
+        nil
+      end
+
+      def process_updates(updates)
         reload! do
           updates.each do |update|
             @offset = update['update_id'] + 1
-            yield update
+            process_update(update)
           end
         end
-      rescue Timeout::Error
-        log { 'Fetch timeout' }
+      rescue StandardError => e
+        logger.error { ([e.message] + e.backtrace).join("\n") } if logger
+      end
+
+      # Override this method to setup custom error collector.
+      def process_update(update)
+        controller.dispatch(bot, update)
       end
 
       def reload!

lib/telegram/bot/version.rb

@@ -1,6 +1,6 @@
 module Telegram
   module Bot
-    VERSION = '0.12.4'.freeze
+    VERSION = '0.13.0'.freeze
 
     def self.gem_version
       Gem::Version.new VERSION

spec/integration_helper.rb

@@ -15,14 +15,21 @@ class TestApplication < Rails::Application
   config.eager_load = false
   config.log_level = :debug
   config.action_dispatch.show_exceptions = false
-  secrets[:secret_key_base] = 'test'
-  secrets[:telegram] = {
+
+  telegram_config = {
     bot: 'default_token',
     bots: {
       other: {token: 'other_token'},
       named: {token: 'named_token', username: 'TestBot'},
     },
   }
+
+  if respond_to?(:credentials)
+    credentials.config[:telegram] = telegram_config
+  else
+    secrets[:secret_key_base] = 'test'
+    secrets[:telegram] = telegram_config
+  end
 end
 Rails.application.initialize!
 
@@ -68,9 +75,9 @@ RSpec.configure do |config|
       require 'telegram/bot/routes_helper'
       extend Telegram::Bot::RoutesHelper
 
-      telegram_webhooks default: DefaultBotController,
-                        other: OtherBotController,
-                        named: NamedBotController
+      telegram_webhook DefaultBotController, :default
+      telegram_webhook OtherBotController, :other
+      telegram_webhook NamedBotController, :named
     end
   end
 end

spec/spec_helper.rb

@@ -16,7 +16,7 @@ $LOAD_PATH.unshift GEM_ROOT.join('lib')
 require 'telegram/bot'
 require 'telegram/bot/updates_controller/rspec_helpers'
 require 'telegram/bot/types'
-require 'active_support/core_ext/object/json'
+require 'active_support/json'
 
 Dir[GEM_ROOT.join('spec/support/**/*.rb')].each { |f| require f }
 

spec/telegram/bot/client_spec.rb

@@ -52,7 +52,7 @@ RSpec.describe Telegram::Bot::Client do
   describe '#request' do
     subject { -> { instance.request(action, request_body) } }
     let(:action) { :some_action }
-    let(:url) { "#{format described_class::URL_TEMPLATE, token}#{action}" }
+    let(:url) { "#{format(described_class::URL_TEMPLATE, token: token)}#{action}" }
     let(:request_body) { double(:body) }
     let(:prepared_body) { double(:prepared_body) }
     let(:response) { HTTP::Message.new_response(body).tap { |x| x.status = status } }

spec/telegram/bot/routes_helper_spec.rb

@@ -40,6 +40,62 @@ RSpec.describe Telegram::Bot::RoutesHelper do
     end
   end
 
+  describe '#telegram_webhook' do
+    subject { mapper.telegram_webhook(*input) }
+    let(:mapper) { double(:mapper).tap { |x| x.extend described_class } }
+    let(:bots) { {default: bot, other: other_bot} }
+    let(:controller) { double(:controller, name: :controller) }
+    let(:other_controller) { double(:other_controller, name: :other_controller) }
+    before { allow(Telegram).to receive(:bots) { bots } }
+
+    def assert_routes(bot, controller, route_name, options) # rubocop:disable AbcSize
+      expected_path = options.delete(:path) || "telegram/#{bot.token}"
+      expect(mapper).to receive(:post) do |path, params|
+        expect(path).to eq expected_path
+        middleware = params[:to]
+        expect(middleware.controller).to eq(controller)
+        expect(middleware.bot.token).to eq(bot.token)
+        expect(middleware.bot.username).to eq(bot.username)
+        expect(params[:as]).to eq route_name
+        expect(params).to include(options) if options
+      end
+      subject
+    end
+
+    context 'when called with controller' do
+      let(:input) { [controller, option: :val] }
+
+      it 'creates routes for default bot and this controller' do
+        assert_routes bot, controller, 'default_telegram_webhook', option: :val
+      end
+
+      context 'and bot does not have configured token' do
+        let(:bot) { create_bot(nil) }
+        it 'creates routes for default bot and this controller' do
+          assert_routes bot, controller, 'default_telegram_webhook', option: :val
+        end
+      end
+
+      context 'and bot has colon in token' do
+        let(:bot) { create_bot('some:token') }
+        it 'replaces colon with underscore' do
+          assert_routes bot, controller, 'default_telegram_webhook',
+            option: :val,
+            path: 'telegram/some_token'
+        end
+      end
+    end
+
+    context 'when called with controller and smth castable to bot' do
+      let(:input) { [controller, 'custom_token', option: :val] }
+
+      it 'creates routes for every created bot and controller' do
+        assert_routes create_bot('custom_token'), controller, 'telegram_webhook',
+          option: :val
+      end
+    end
+  end
+
   describe '#telegram_webhooks' do
     subject { mapper.telegram_webhooks(*input) }
     let(:mapper) { double(:mapper).tap { |x| x.extend described_class } }
@@ -47,6 +103,7 @@ RSpec.describe Telegram::Bot::RoutesHelper do
     let(:controller) { double(:controller, name: :controller) }
     let(:other_controller) { double(:other_controller, name: :other_controller) }
     before { allow(Telegram).to receive(:bots) { bots } }
+    around { |ex| Telegram::Bot.deprecation_0_14.silence { ex.run } }
 
     def assert_routes(*expected) # rubocop:disable AbcSize
       expected.each do |(bot, controller, route_name, options)|

spec/telegram/bot/updates_controller/instrumentation_spec.rb

@@ -0,0 +1,91 @@
+RSpec.describe Telegram::Bot::UpdatesController::Instrumentation do
+  include_context 'telegram/bot/updates_controller'
+
+  subject { -> { dispatch } }
+  let(:update) do
+    build_update :message, default_message_options.merge(text: '/start')
+  end
+
+  let(:controller_class) do
+    Class.new(Telegram::Bot::UpdatesController) do
+      def start(*)
+      end
+    end
+  end
+
+  let(:action_scope) { 'updates_controller.bot.telegram' }
+  let(:events) { Hash.new { |h, k| h[k] = [] } }
+  let!(:subscriber) do
+    ActiveSupport::Notifications.subscribe(/#{action_scope}/) do |action, *args|
+      events[action] << args
+    end
+  end
+  after { ActiveSupport::Notifications.unsubscribe(subscriber) }
+
+  def actions_list(*prefixes)
+    prefixes.map { |x| action_name(x) }
+  end
+
+  def action_name(prefix)
+    "#{prefix}.#{action_scope}"
+  end
+
+  describe '#process_action' do
+    it 'fires start_processing and process_action events' do
+      should change(events, :keys).by(actions_list(:start_processing, :process_action))
+
+      action = action_name(:start_processing)
+      expect(events[action].size).to eq(1)
+      expect(events[action][0].last).to include(update: update)
+
+      action = action_name(:process_action)
+      expect(events[action].size).to eq(1)
+      expect(events[action][0].last).to include(update: update)
+    end
+  end
+
+  describe '#halted_callback_hook' do
+    let(:controller_class) do
+      super().try(:class_eval) do |x|
+        x.before_action :halter_method
+
+        def halter_method
+          require 'active_support/version'
+          if ActiveSupport::VERSION::MAJOR >= 5
+            throw :abort
+          else
+            false
+          end
+        end
+
+        self
+      end
+    end
+
+    it 'fires halted_callback event' do
+      should change(events, :keys).
+        by(actions_list(:start_processing, :halted_callback, :process_action))
+
+      action = action_name(:halted_callback)
+      expect(events[action].size).to eq(1)
+      expect(events[action][0].last).to include(filter: :halter_method)
+    end
+  end
+
+  describe '#respond_with' do
+    before do
+      def controller.start(*)
+        respond_with :message, text: 'sample response'
+      end
+    end
+
+    it 'fires respond_with event' do
+      should change(events, :keys).
+        by(actions_list(:start_processing, :respond_with, :process_action))
+
+      action = action_name(:respond_with)
+      expect(events[action].size).to eq(1)
+      expect(events[action][0].last).to include(type: :message)
+    end
+  end
+end

spec/telegram/bot/updates_controller/rescue_spec.rb

@@ -0,0 +1,31 @@
+RSpec.describe Telegram::Bot::UpdatesController::Rescue do
+  include_context 'telegram/bot/updates_controller'
+
+  describe '#process_action' do
+    subject { -> { dispatch_message("/#{command} x y z") } }
+
+    let(:controller_class) do
+      Class.new(Telegram::Bot::UpdatesController) do
+        rescue_from ArgumentError, with: -> { respond_with :message, text: 'Rescued' }
+
+        def rescuable(*)
+          raise ArgumentError, 'rescuable'
+        end
+
+        def not_rescuable(*)
+          raise 'not_rescuable'
+        end
+      end
+    end
+
+    context 'when exception is rescued' do
+      let(:command) { :rescuable }
+      it { should respond_with_message 'Rescued' }
+    end
+
+    context 'when exception is not rescued' do
+      let(:command) { :not_rescuable }
+      it { should raise_error('not_rescuable') }
+    end
+  end
+end

spec/telegram/bot/updates_poller_spec.rb

@@ -8,12 +8,32 @@ RSpec.describe Telegram::Bot::UpdatesPoller do
     it { should be }
   end
 
-  describe '#fetch_updates' do
-    subject { -> { instance.fetch_updates(&block) } }
+  describe '#process_updates' do
+    subject { -> { instance.process_updates(updates) } }
     let(:block) { ->(x) { expect(x).to eq expected_results.shift } }
-    let(:results) { [{update_id: 12}, {update_id: 34}] }
-    let(:expected_results) { results.as_json }
-    let(:request_result) { {ok: true, result: results}.as_json }
+    let(:updates) { [{update_id: 12}, {update_id: 34}].as_json }
+    let(:processed_updates) { [] }
+    before do
+      allow(controller).to receive(:dispatch) do |bot, update|
+        expect(bot).to eq self.bot
+        processed_updates << update
+      end
+    end
+
+    it { should change(instance, :offset).to(updates.last['update_id'] + 1) }
+    it { should change(self, :processed_updates).to(updates) }
+
+    context 'with typed response' do
+      let(:updates) { super().map { |x| Telegram::Bot::Types::Update.new(x) } }
+      it { should change(instance, :offset).to(updates.last['update_id'] + 1) }
+      it { should change(self, :processed_updates).to(updates) }
+    end
+  end
+
+  describe '#fetch_updates' do
+    subject { instance.fetch_updates }
+    let(:updates) { [{update_id: 12}, {update_id: 34}] }
+    let(:request_result) { {ok: true, result: updates}.as_json }
     before do
       allow(bot).to receive(:get_updates) do
         expect(bot.async).to be_falsy
@@ -21,19 +41,17 @@ RSpec.describe Telegram::Bot::UpdatesPoller do
       end
     end
 
-    it { should change(instance, :offset).to(results.last[:update_id] + 1) }
-    it { should change { expected_results }.to([]) }
+    it { should eq updates.as_json }
 
     context 'with typed response' do
-      let(:request_result) { results.as_json.map { |x| Telegram::Bot::Types::Update.new(x) } }
-      let(:expected_results) { request_result.dup }
-      it { should change(instance, :offset).to(results.last[:update_id] + 1) }
-      it { should change { expected_results }.to([]) }
+      let(:updates) { super().map { |x| Telegram::Bot::Types::Update.new(x.as_json) } }
+      let(:request_result) { updates }
+      it { should eq updates }
     end
 
     context 'when bot is in async mode' do
       let(:bot) { Telegram::Bot::Client.new('token', async: Class.new) }
-      it { should change { expected_results }.to([]) }
+      it { should eq updates.as_json }
     end
   end
 end

telegram-bot.gemspec

@@ -23,6 +23,6 @@ Gem::Specification.new do |spec|
   spec.add_dependency 'activesupport', '>= 4.0', '< 6.0'
   spec.add_dependency 'httpclient', '~> 2.7'
 
-  spec.add_development_dependency 'bundler', '~> 1.11'
+  spec.add_development_dependency 'bundler', '~> 1.16'
   spec.add_development_dependency 'rake', '~> 10.0'
 end