Fixed MessageContext for messages without text

lib/telegram/bot/updates_controller/message_context.rb

@@ -24,7 +24,7 @@ module Telegram
           #
           #     # To run other action with all the callbacks:
           #     context_handler :rename do |message|
-          #       process(:rename, *m['text'].split)
+          #       process(:rename, *m['text'].try!(:split)) # Message can be without text
           #     end
           #
           #     # Or just
@@ -32,7 +32,7 @@ module Telegram
           #     context_handler :rename # to call :rename
           #
           #     # For messages without context use this instead of `message` method:
-          #     context_handle do |message|
+          #     context_handler do |message|
           #     end
           #
           def context_handler(context = nil, action = nil, &block)
@@ -56,7 +56,7 @@ module Telegram
           if handler.respond_to?(:call)
             instance_exec(message, &handler)
           else
-            process(handler, *message['text'].split)
+            process(handler, *message['text'].try!(:split))
           end
         end
 

spec/telegram/bot/updates_controller/message_context_spec.rb

@@ -54,6 +54,11 @@ RSpec.describe Telegram::Bot::UpdatesController::MessageContext do
       its(:call) { should eq [:block_result, payload] }
       it { should_not change(controller, :filter_done) }
       it { should change { session[:context] }.to nil }
+
+      context 'when message has no text' do
+        let(:payload) { {'audio' => {'file_id' => 123}} }
+        its(:call) { should eq [:block_result, payload] }
+      end
     end
 
     context 'when context is handled by short redirect' do
@@ -61,6 +66,13 @@ RSpec.describe Telegram::Bot::UpdatesController::MessageContext do
       its(:call) { should eq [:method_result, *text.split] }
       it { should change(controller, :filter_done).to true }
       it { should change { session[:context] }.to nil }
+
+      context 'when message has no text' do
+        let(:payload) { {'audio' => {'file_id' => 123}} }
+        its(:call) { should eq [:method_result] }
+        it { should change(controller, :filter_done).to true }
+        it { should change { session[:context] }.to nil }
+      end
     end
 
     context 'when context is handled by custom redirect' do

spec/telegram/bot/updates_controller_spec.rb

@@ -109,6 +109,11 @@ RSpec.describe Telegram::Bot::UpdatesController do
           it { should eq [false, 'message', [payload]] }
         end
       end
+
+      context 'without text' do
+        let(:payload) { {'audio' => {'file_id' => 123}} }
+        it { should eq [false, payload_type, [payload]] }
+      end
     end
   end