Merge pull request #163 from telegram-bot-rb/update_api

Update to Bot API 5.3

.travis.yml

@@ -1,3 +1,5 @@
+os: linux
+dist: xenial
 language: ruby
 cache: bundler
 rvm:
@@ -7,8 +9,13 @@ gemfile:
 - gemfiles/rails_61.gemfile
 - gemfiles/rails_60.gemfile
 - gemfiles/rails_52.gemfile
-matrix:
+jobs:
   include:
+  # ruby 3.x
+  - rvm: 3.0
+    gemfile: gemfiles/rails_61.gemfile
+  - rvm: 3.0
+    gemfile: gemfiles/rails_60.gemfile
   # old rails
   - rvm: 2.5
     gemfile: gemfiles/rails_51.gemfile
@@ -19,7 +26,5 @@ matrix:
   # old rubies
   - rvm: 2.4
     gemfile: gemfiles/rails_52.gemfile
-  - rvm: 2.3
-    gemfile: gemfiles/rails_52.gemfile
 notifications:
   email: false

CHANGELOG.md

@@ -1,5 +1,17 @@
 # Unreleased
 
+# 0.15.4
+
+- Update to Bot API 5.3
+
+# 0.15.3
+
+- Ruby 3.0 support: fix translation helpers.
+
+# 0.15.2
+
+- Ruby 3.0 support. Drop support for Ruby < 2.4.
+
 # 0.15.1
 
 - Rails 6.1 support.

Gemfile

@@ -4,17 +4,17 @@ gemspec
 group :development do
   gem 'appraisal', '~> 2.2'
 
-  gem 'pry', '~> 0.10.1'
+  gem 'pry', '~> 0.13.1'
-  gem 'pry-byebug', '~> 3.2.0'
+  gem 'pry-byebug', '~> 3.9.0'
-  gem 'sdoc', '~> 0.4.1'
+  gem 'sdoc', '~> 2.0.3'
 
-  gem 'telegram-bot-types', '~> 0.6.2'
+  gem 'telegram-bot-types', '~> 0.6.3'
 
-  gem 'rspec', '~> 3.5.0'
+  gem 'rspec', '~> 3.10.0'
-  gem 'rspec-its', '~> 1.1.0'
+  gem 'rspec-its', '~> 1.3.0'
-  gem 'rspec-rails', '~> 3.5.0'
+  gem 'rspec-rails', '~> 4.0.2'
 
   gem 'rubocop', '~> 0.52.1'
 
-  gem 'coveralls', '~> 0.8.2', require: false
+  gem 'coveralls', '~> 0.8.23', require: false
 end

README.md

@@ -2,7 +2,7 @@
 
 [![Gem Version](https://badge.fury.io/rb/telegram-bot.svg)](http://badge.fury.io/rb/telegram-bot)
 [![Code Climate](https://codeclimate.com/github/telegram-bot-rb/telegram-bot/badges/gpa.svg)](https://codeclimate.com/github/telegram-bot-rb/telegram-bot)
-[![Build Status](https://travis-ci.org/telegram-bot-rb/telegram-bot.svg)](https://travis-ci.org/telegram-bot-rb/telegram-bot)
+[![Build Status](https://travis-ci.com/telegram-bot-rb/telegram-bot.svg)](https://travis-ci.com/telegram-bot-rb/telegram-bot)
 
 Tools for developing Telegram bots. Best used with Rails, but can be used in
 [standalone app](https://github.com/telegram-bot-rb/telegram-bot/wiki/Not-rails-application).
@@ -25,9 +25,33 @@ with session, keyboards and inline queries.
 Run it on your local machine in 1 minute!
 
 And here is [app template](https://github.com/telegram-bot-rb/rails_template)
-to generate clean app in seconds.
+to generate new rails app in seconds.
 
-Examples and cookbook in [wiki](https://github.com/telegram-bot-rb/telegram-bot/wiki).
+See examples and cookbook in [the wiki](https://github.com/telegram-bot-rb/telegram-bot/wiki).
+
+## Table of Contents
+
+* [Installation](#installation)
+* [Usage](#usage)
+  * [Configuration](#configuration)
+  * [Configuration in Rails app](#configuration-in-rails-app)
+  * [Client](#client)
+    * [Typed responses](#typed-responses)
+  * [Controller](#controller)
+    * [Reply helpers](#reply-helpers)
+    * [Optional typecasting](#optional-typecasting)
+    * [Session](#session)
+    * [Message context](#message-context)
+    * [Callback queries](#callback-queries)
+  * [Routes in Rails app](#routes-in-rails-app)
+    * [Processing updates](#processing-updates)
+  * [Development & Debugging](#development--debugging)
+  * [Testing](#testing)
+  * [Deployment](#deployment)
+  * [Async mode](#async-mode)
+    * [Limitations](#limitations)
+* [Development](#development)
+* [Contributing](#contributing)
 
 ## Installation
 
@@ -39,11 +63,15 @@ gem 'telegram-bot'
 
 And then execute:
 
-    $ bundle
+```
+bundle
+```
 
 Or install it yourself as:
 
-    $ gem install telegram-bot
+```
+gem install telegram-bot
+```
 
 Require if necessary:
 
@@ -131,9 +159,9 @@ bot.send_message(chat_id: chat_id, text: 'Test')
 ```
 
 There is no magic, they just pass params as is and set `path_suffix`.
-See [`Client`](https://github.com/telegram-bot-rb/telegram-bot/blob/master/lib/telegram/bot/client.rb)
+See [list of available methods](https://github.com/telegram-bot-rb/telegram-bot/blob/master/lib/telegram/bot/client/api_methods.txt)
-class for list of available methods. Please open PR or issue if it misses methods from
+fetched from [API docs](https://core.telegram.org/bots/api).
-new API versions.
+Please open PR or issue if it misses methods from new API versions.
 
 Any API request error will raise `Telegram::Bot::Error` with description in its message.
 Special `Telegram::Bot::Forbidden` is raised when bot can't post messages to the chat anymore.
@@ -170,19 +198,18 @@ Bot controllers like usual rails controllers provides features like callbacks,
 
 ```ruby
 class Telegram::WebhookController < Telegram::Bot::UpdatesController
-  # use callbacks like in any other controllers
+  # use callbacks like in any other controller
   around_action :with_locale
 
-  # Every update can have one of: message, inline_query, chosen_inline_result,
+  # Every update has one of: message, inline_query, chosen_inline_result,
   # callback_query, etc.
-  # Define method with same name to respond to this updates.
+  # Define method with the same name to handle this type of update.
   def message(message)
-    # message can be also accessed via instance method
-    message == self.payload # true
     # store_message(message['text'])
   end
 
-  # This basic methods receives commonly used params:
+  # For the following types of updates commonly used params are passed as arguments,
+  # full payload object is available with `payload` instance method.
   #
   #   message(payload)
   #   inline_query(query, offset)
@@ -193,14 +220,19 @@ class Telegram::WebhookController < Telegram::Bot::UpdatesController
   # Command arguments will be parsed and passed to the method.
   # Be sure to use splat args and default values to not get errors when
   # someone passed more or less arguments in the message.
-  def start!(data = nil, *)
+  def start!(word = nil, *other_words)
-    # do_smth_with(data)
+    # do_smth_with(word)
+
+    # full message object is also available via `payload` instance method:
+    # process_raw_message(payload['text'])
 
     # There are `chat` & `from` shortcut methods.
-    # For callback queries `chat` if taken from `message` when it's available.
+    # For callback queries `chat` is taken from `message` when it's available.
     response = from ? "Hello #{from['username']}!" : 'Hi there!'
+
     # There is `respond_with` helper to set `chat_id` from received message:
     respond_with :message, text: response
+
     # `reply_with` also sets `reply_to_message_id`:
     reply_with :photo, photo: File.open('party.jpg')
   end
@@ -223,10 +255,10 @@ end
 
 #### Reply helpers
 
-There are helpers to respond for basic actions. They just set chat/message/query
+There are helpers for basic responses. They just set chat/message/query
-identifiers from update. See
+identifiers from the update. See
 [`ReplyHelpers`](https://github.com/telegram-bot-rb/telegram-bot/blob/master/lib/telegram/bot/updates_controller/reply_helpers.rb)
-module for more information. Here are this methods signatures:
+module for more information. Here are these methods signatures:
 
 ```ruby
 def respond_with(type, params); end
@@ -389,7 +421,7 @@ telegram_webhook TelegramAuctionController, :auction
 telegram_webhook TelegramController, as: :custom_telegram_webhook
 ```
 
-#### Processesing updates
+#### Processing updates
 
 To process update with controller call `.dispatch(bot, update)` on it.
 There are several options to run it automatically:

gemfiles/rails_42.gemfile

@@ -7,15 +7,15 @@ gem "railties", "~> 4.2.0"
 
 group :development do
   gem "appraisal", "~> 2.2"
-  gem "pry", "~> 0.10.1"
+  gem "pry", "~> 0.13.1"
-  gem "pry-byebug", "~> 3.2.0"
+  gem "pry-byebug", "~> 3.9.0"
-  gem "sdoc", "~> 0.4.1"
+  gem "sdoc", "~> 2.0.3"
   gem "telegram-bot-types", "~> 0.6.2"
-  gem "rspec", "~> 3.5.0"
+  gem "rspec", "~> 3.10.0"
-  gem "rspec-its", "~> 1.1.0"
+  gem "rspec-its", "~> 1.3.0"
-  gem "rspec-rails", "~> 3.5.0"
+  gem "rspec-rails", "~> 4.0.2"
   gem "rubocop", "~> 0.52.1"
-  gem "coveralls", "~> 0.8.2", require: false
+  gem "coveralls", "~> 0.8.23", require: false
 end
 
 gemspec path: "../"

gemfiles/rails_50.gemfile

@@ -7,15 +7,15 @@ gem "railties", "~> 5.0.0"
 
 group :development do
   gem "appraisal", "~> 2.2"
-  gem "pry", "~> 0.10.1"
+  gem "pry", "~> 0.13.1"
-  gem "pry-byebug", "~> 3.2.0"
+  gem "pry-byebug", "~> 3.9.0"
-  gem "sdoc", "~> 0.4.1"
+  gem "sdoc", "~> 2.0.3"
   gem "telegram-bot-types", "~> 0.6.2"
-  gem "rspec", "~> 3.5.0"
+  gem "rspec", "~> 3.10.0"
-  gem "rspec-its", "~> 1.1.0"
+  gem "rspec-its", "~> 1.3.0"
-  gem "rspec-rails", "~> 3.5.0"
+  gem "rspec-rails", "~> 4.0.2"
   gem "rubocop", "~> 0.52.1"
-  gem "coveralls", "~> 0.8.2", require: false
+  gem "coveralls", "~> 0.8.23", require: false
 end
 
 gemspec path: "../"

gemfiles/rails_51.gemfile

@@ -7,15 +7,15 @@ gem "railties", "~> 5.1.0"
 
 group :development do
   gem "appraisal", "~> 2.2"
-  gem "pry", "~> 0.10.1"
+  gem "pry", "~> 0.13.1"
-  gem "pry-byebug", "~> 3.2.0"
+  gem "pry-byebug", "~> 3.9.0"
-  gem "sdoc", "~> 0.4.1"
+  gem "sdoc", "~> 2.0.3"
   gem "telegram-bot-types", "~> 0.6.2"
-  gem "rspec", "~> 3.5.0"
+  gem "rspec", "~> 3.10.0"
-  gem "rspec-its", "~> 1.1.0"
+  gem "rspec-its", "~> 1.3.0"
-  gem "rspec-rails", "~> 3.5.0"
+  gem "rspec-rails", "~> 4.0.2"
   gem "rubocop", "~> 0.52.1"
-  gem "coveralls", "~> 0.8.2", require: false
+  gem "coveralls", "~> 0.8.23", require: false
 end
 
 gemspec path: "../"

gemfiles/rails_52.gemfile

@@ -7,15 +7,15 @@ gem "railties", "~> 5.2.0"
 
 group :development do
   gem "appraisal", "~> 2.2"
-  gem "pry", "~> 0.10.1"
+  gem "pry", "~> 0.13.1"
-  gem "pry-byebug", "~> 3.2.0"
+  gem "pry-byebug", "~> 3.9.0"
-  gem "sdoc", "~> 0.4.1"
+  gem "sdoc", "~> 2.0.3"
   gem "telegram-bot-types", "~> 0.6.2"
-  gem "rspec", "~> 3.5.0"
+  gem "rspec", "~> 3.10.0"
-  gem "rspec-its", "~> 1.1.0"
+  gem "rspec-its", "~> 1.3.0"
-  gem "rspec-rails", "~> 3.5.0"
+  gem "rspec-rails", "~> 4.0.2"
   gem "rubocop", "~> 0.52.1"
-  gem "coveralls", "~> 0.8.2", require: false
+  gem "coveralls", "~> 0.8.23", require: false
 end
 
 gemspec path: "../"

gemfiles/rails_60.gemfile

@@ -7,15 +7,15 @@ gem "railties", "~> 6.0.0"
 
 group :development do
   gem "appraisal", "~> 2.2"
-  gem "pry", "~> 0.10.1"
+  gem "pry", "~> 0.13.1"
-  gem "pry-byebug", "~> 3.2.0"
+  gem "pry-byebug", "~> 3.9.0"
-  gem "sdoc", "~> 0.4.1"
+  gem "sdoc", "~> 2.0.3"
   gem "telegram-bot-types", "~> 0.6.2"
-  gem "rspec", "~> 3.5.0"
+  gem "rspec", "~> 3.10.0"
-  gem "rspec-its", "~> 1.1.0"
+  gem "rspec-its", "~> 1.3.0"
-  gem "rspec-rails", "~> 3.5.0"
+  gem "rspec-rails", "~> 4.0.2"
   gem "rubocop", "~> 0.52.1"
-  gem "coveralls", "~> 0.8.2", require: false
+  gem "coveralls", "~> 0.8.23", require: false
 end
 
 gemspec path: "../"

gemfiles/rails_61.gemfile

@@ -7,15 +7,15 @@ gem "railties", "~> 6.1.0"
 
 group :development do
   gem "appraisal", "~> 2.2"
-  gem "pry", "~> 0.10.1"
+  gem "pry", "~> 0.13.1"
-  gem "pry-byebug", "~> 3.2.0"
+  gem "pry-byebug", "~> 3.9.0"
-  gem "sdoc", "~> 0.4.1"
+  gem "sdoc", "~> 2.0.3"
   gem "telegram-bot-types", "~> 0.6.2"
-  gem "rspec", "~> 3.5.0"
+  gem "rspec", "~> 3.10.0"
-  gem "rspec-its", "~> 1.1.0"
+  gem "rspec-its", "~> 1.3.0"
-  gem "rspec-rails", "~> 3.5.0"
+  gem "rspec-rails", "~> 4.0.2"
   gem "rubocop", "~> 0.52.1"
-  gem "coveralls", "~> 0.8.2", require: false
+  gem "coveralls", "~> 0.8.23", require: false
 end
 
 gemspec path: "../"

lib/telegram/bot/client/api_methods.txt

@@ -1,5 +1,5 @@
 # Generated with bin/fetch-telegram-methods
-# Bot API 5.0
+# Bot API 5.3
 
 getUpdates
 setWebhook
@@ -30,13 +30,16 @@ sendDice
 sendChatAction
 getUserProfilePhotos
 getFile
-kickChatMember
+banChatMember
 unbanChatMember
 restrictChatMember
 promoteChatMember
 setChatAdministratorCustomTitle
 setChatPermissions
 exportChatInviteLink
+createChatInviteLink
+editChatInviteLink
+revokeChatInviteLink
 setChatPhoto
 deleteChatPhoto
 setChatTitle
@@ -47,12 +50,13 @@ unpinAllChatMessages
 leaveChat
 getChat
 getChatAdministrators
-getChatMembersCount
+getChatMemberCount
 getChatMember
 setChatStickerSet
 deleteChatStickerSet
 answerCallbackQuery
 setMyCommands
+deleteMyCommands
 getMyCommands
 
 editMessageText

lib/telegram/bot/client_stub.rb

@@ -5,11 +5,11 @@ module Telegram
       attr_reader :requests
 
       module StubbedConstructor
-        def new(*args)
+        def new(*args, **kwargs)
           if self == ClientStub || !ClientStub.stub_all?
             super
           else
-            ClientStub.new(*args)
+            ClientStub.new(*args, **kwargs)
           end
         end
       end

lib/telegram/bot/updates_controller.rb

@@ -99,6 +99,8 @@ module Telegram
         pre_checkout_query
         poll
         poll_answer
+        my_chat_member
+        chat_member
       ].freeze
 
       class << self

lib/telegram/bot/updates_controller/translation.rb

@@ -12,15 +12,15 @@ module Telegram
 
         module ClassMethods
           # Class-level helper for lazy translations.
-          def translate(key, options = {})
+          def translate(key, **options)
             key = "#{controller_path.tr('/', '.')}#{key}" if key.to_s.start_with?('.')
-            I18n.translate(key, options)
+            I18n.translate(key, **options)
           end
           alias :t :translate
         end
 
         # See toplevel description.
-        def translate(key, options = {})
+        def translate(key, **options)
           if key.to_s.start_with?('.')
             path = controller_path.tr('/', '.')
             defaults = [:"#{path}#{key}"]
@@ -28,7 +28,7 @@ module Telegram
             options[:default] = defaults.flatten
             key = "#{path}.#{action_name_i18n_key}#{key}"
           end
-          I18n.translate(key, options)
+          I18n.translate(key, **options)
         end
         alias :t :translate
 

lib/telegram/bot/version.rb

@@ -1,6 +1,6 @@
 module Telegram
   module Bot
-    VERSION = '0.15.1'.freeze
+    VERSION = '0.15.4'.freeze
 
     def self.gem_version
       Gem::Version.new VERSION

spec/support/examples/async.rb

@@ -1,4 +1,4 @@
-RSpec.shared_examples 'async' do |request_args: -> {}|
+RSpec.shared_examples 'async' do |request_args:|
   let(:instance) { described_class.new(token: token, id: id, async: async) }
   let(:id) { :default_bot }
   let(:async) { true }
@@ -103,7 +103,7 @@ RSpec.shared_examples 'async' do |request_args: -> {}|
   end
 
   describe '#request' do
-    subject { ->(*args) { instance.request(*(args.empty? ? self.args : args)) } }
+    subject { ->(*args) { instance.request(*args) } }
     let(:args, &request_args)
     let(:result) { double(:result) }
 
@@ -112,7 +112,7 @@ RSpec.shared_examples 'async' do |request_args: -> {}|
         expect(instance).to_not receive(:http_request)
         expect(described_class).to receive(:prepare_async_args).with(*args) { args }
         expect(instance.async).to receive(:perform_later).with(id.to_s, *args) { result }
-        expect(subject.call).to eq result
+        expect(subject.call(*args)).to eq result
       end
     end
 
@@ -131,12 +131,11 @@ RSpec.shared_examples 'async' do |request_args: -> {}|
     context 'when async is disabled' do
       let(:async) { false }
       let(:result) { double(status: 200, body: '{"test":"ok"}') }
-      let(:args, &request_args)
 
       it 'performs request immediately' do
         expect(instance).to receive(:request).with(*args).and_call_original
         expect(instance).to receive(:http_request) { result }
-        expect(subject[]).to eq 'test' => 'ok'
+        expect(subject.call(*args)).to eq 'test' => 'ok'
       end
     end
   end

spec/telegram/bot/client_spec.rb

@@ -14,7 +14,10 @@ RSpec.describe Telegram::Bot::Client do
       let(:input) { token }
 
       it 'treats string as token' do
-        expect(described_class).to receive(:new).with(token, {}) { result }
+        expect(described_class).to receive(:new) do |*args, **kwargs|
+          expect([*args, kwargs]).to eq([token, {}]) # not using .with to support ruby 2.x and 3.x
+          result
+        end
         should eq result
       end
 
@@ -94,7 +97,9 @@ RSpec.describe Telegram::Bot::Client do
   end
 
   describe '.new' do
-    subject { described_class.new(*args) }
+    subject { described_class.new(*args, **kwargs) }
+    let(:args) { [] }
+    let(:kwargs) { {} }
     let(:token) { 'secret' }
     let(:username) { 'superbot' }
 
@@ -106,7 +111,7 @@ RSpec.describe Telegram::Bot::Client do
     end
 
     context 'when hash is given' do
-      let(:args) { [token: 'secret', username: 'superbot'] }
+      let(:kwargs) { {token: 'secret', username: 'superbot'} }
       its(:token) { should eq token }
       its(:username) { should eq username }
       its(:base_uri) { should eq "#{described_class::SERVER}/bot#{token}/" }
@@ -114,11 +119,12 @@ RSpec.describe Telegram::Bot::Client do
 
     context 'with custom server' do
       let(:server) { 'http://my.server' }
-      let(:args) { [token, username, server: server] }
+      let(:args) { [token, username] }
+      let(:kwargs) { {server: server} }
       its(:base_uri) { should eq "#{server}/bot#{token}/" }
 
       context 'and hash options' do
-        let(:args) { [token: token, username: username, server: server] }
+        let(:kwargs) { {token: token, username: username, server: server} }
         its(:base_uri) { should eq "#{server}/bot#{token}/" }
       end
     end

spec/telegram/bot/client_stub_spec.rb

@@ -37,11 +37,13 @@ RSpec.describe Telegram::Bot::ClientStub do
   end
 
   describe '#new' do
-    subject { described_class.new(*args) }
+    subject { described_class.new(*args, **kwargs) }
+    let(:args) { [] }
+    let(:kwargs) { {} }
 
     context 'when only username is given' do
-      let(:args) { 'superbot' }
+      let(:args) { ['superbot'] }
-      its(:username) { should eq args }
+      its(:username) { should eq args[0] }
     end
 
     context 'when username and token are given' do
@@ -51,9 +53,9 @@ RSpec.describe Telegram::Bot::ClientStub do
     end
 
     context 'when hash config is given' do
-      let(:args) { [token: 'token', username: 'superbot'] }
+      let(:kwargs) { {token: 'token', username: 'superbot'} }
-      its(:token) { should eq args[0][:token] }
+      its(:token) { should eq kwargs[:token] }
-      its(:username) { should eq args[0][:username] }
+      its(:username) { should eq kwargs[:username] }
     end
   end
 end

spec/telegram/bot/routes_helper_spec.rb

@@ -41,7 +41,7 @@ RSpec.describe Telegram::Bot::RoutesHelper do
   end
 
   describe '#telegram_webhook' do
-    subject { ->(*args) { mapper.telegram_webhook(*args) } }
+    subject { ->(*args, **kwargs) { mapper.telegram_webhook(*args, **kwargs) } }
     let(:mapper) { double(:mapper).tap { |x| x.extend described_class } }
     let(:controller) { double(:controller, name: :controller) }
     before { allow(Telegram).to receive(:bots) { bots } }

spec/telegram/bot/updates_controller/translation_spec.rb

@@ -1,5 +1,26 @@
 RSpec.describe Telegram::Bot::UpdatesController::Translation do
+  def self.stub_translations(translations)
+    around do |ex|
+      backend = I18n.backend
+      I18n.backend = I18n::Backend::Simple.new
+      begin
+        I18n.backend.store_translations 'en', telegram: {webhooks: translations}
+        ex.run
+      ensure
+        I18n.backend = backend
+      end
+    end
+  end
+  let(:result) { double(:result) }
+
   describe '#translate' do
+    stub_translations(
+      start: {
+        hello: 'Hello from start!',
+        hi: 'Hi %{name} from start', # rubocop:disable Style/FormatStringToken
+      },
+    )
+
     let(:controller) do
       double(
         controller_path: 'telegram/webhooks',
@@ -10,12 +31,28 @@ RSpec.describe Telegram::Bot::UpdatesController::Translation do
     it 'uses action_name without ! for lazy translations' do
       expect(I18n).to receive(:translate).with('telegram.webhooks.start.hello',
         default: [:'telegram.webhooks.hello'],
-      )
+      ) { result }
-      controller.t('.hello')
+      expect(controller.t('.hello')).to eq(result)
+
+      expect(I18n).to receive(:translate).with('telegram.webhooks.start.hi',
+        default: [:'telegram.webhooks.hi'],
+        name: 'Dude',
+      ) { result }
+      expect(controller.t('.hi', name: 'Dude')).to eq(result)
+    end
+
+    it 'translates' do
+      expect(controller.t('.hello')).to eq('Hello from start!')
+      expect(controller.t('.hi', name: 'Dude')).to eq('Hi Dude from start')
     end
   end
 
   describe described_class::ClassMethods do
+    stub_translations(
+      hello: 'Hello!',
+      hi: 'Hi %{name}', # rubocop:disable Style/FormatStringToken
+    )
+
     describe '#translate' do
       let(:controller_class) do
         double(controller_path: 'telegram/webhooks').
@@ -23,8 +60,20 @@ RSpec.describe Telegram::Bot::UpdatesController::Translation do
       end
 
       it 'uses controller_path for lazy translations' do
-        expect(I18n).to receive(:translate).with('telegram.webhooks.hello', {})
+        expect(I18n).to receive(:translate) do |*args, **kwargs|
-        controller_class.t('.hello')
+          # not using .with to support ruby 2.x and 3.x
+          expect([*args, kwargs]).to eq(['telegram.webhooks.hello', {}])
+          result
+        end
+        expect(controller_class.t('.hello')).to eq(result)
+
+        expect(I18n).to receive(:translate).with('telegram.webhooks.hi', name: 'Dude') { result }
+        expect(controller_class.t('.hi', name: 'Dude')).to eq(result)
+      end
+
+      it 'translates' do
+        expect(controller_class.t('.hello')).to eq('Hello!')
+        expect(controller_class.t('.hi', name: 'Dude')).to eq('Hi Dude')
       end
     end
   end

spec/telegram/bot/updates_controller/typed_update_spec.rb

@@ -9,14 +9,19 @@ RSpec.describe Telegram::Bot::UpdatesController::TypedUpdate do
 
   context 'when `update` is a virtus model' do
     subject { controller }
-    unique_types = Telegram::Bot::UpdatesController::PAYLOAD_TYPES - %w[
+    unique_types = (Telegram::Bot::UpdatesController::PAYLOAD_TYPES - %w[
       edited_message
       channel_post
       edited_channel_post
-    ]
+      my_chat_member
-    unique_types.each do |type|
+      chat_member
+    ]).
+      map { |x| [x, Telegram::Bot::Types.const_get(type.camelize)] }.to_h.
+      merge(
+        'chat_member' => Telegram::Bot::Types::ChatMemberUpdated
+      )
+    unique_types.each do |type, type_class|
       context "with #{type}" do
-        type_class = Telegram::Bot::Types.const_get(type.camelize)
         let(:payload_type) { type }
         let(:payload) do
           {}.tap do |result|

telegram-bot.gemspec

@@ -17,7 +17,7 @@ Gem::Specification.new do |spec|
   spec.executables   = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
   spec.require_paths = ['lib']
 
-  spec.required_ruby_version = '~> 2.0'
+  spec.required_ruby_version = '>= 2.4'
 
   spec.add_dependency 'actionpack', '>= 4.0', '< 6.2'
   spec.add_dependency 'activesupport', '>= 4.0', '< 6.2'