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Module: ActionCable::Channel::TestCase::Behavior

Relationships & Source Files
Namespace Children
Modules:
ClassMethods
Extension / Inclusion / Inheritance Descendants
Included In:
::ActionCable::Channel::TestCase
Super Chains via Extension / Inclusion / Inheritance
Class Chain:
self, ::ActiveSupport::Concern
Instance Chain:
self, ::ActionCable::TestHelper, ::ActiveSupport::Testing::ConstantLookup
Defined in: actioncable/lib/action_cable/channel/test_case.rb

Constant Summary

Class Method Summary

::ActiveSupport::Concern - Extended

class_methods

Define class methods from given block.
included

Evaluate given block in context of base class, so that you can write class macros here.
prepended

Evaluate given block in context of base class, so that you can write class macros here.
append_features, prepend_features

Instance Attribute Summary

::ActionCable::TestHelper - Included

#broadcasts, #clear_messages

Instance Method Summary

::ActionCable::TestHelper - Included

#assert_broadcast_on

Asserts that the specified message has been sent to the stream.
#assert_broadcasts

Asserts that the number of broadcasted messages to the stream matches the given number.
#assert_no_broadcasts

Asserts that no messages have been sent to the stream.
#capture_broadcasts

Returns the messages that are broadcasted in the block.
#new_broadcasts_from, #after_teardown, #before_setup, #pubsub_adapter

DSL Calls

included

[ GitHub ] 


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# File 'actioncable/lib/action_cable/channel/test_case.rb', line 195

included do
  class_attribute :_channel_class

  attr_reader :connection, :subscription

  ActiveSupport.run_load_hooks(:action_cable_channel_test_case, self)
end

Instance Method Details

#assert_broadcast_on(stream_or_object, *args)

[ GitHub ] 

  


# File 'actioncable/lib/action_cable/channel/test_case.rb', line 278



def assert_broadcast_on(stream_or_object, *args)
  super(broadcasting_for(stream_or_object), *args)
end


  








  

    #assert_broadcasts(stream_or_object, *args)  
  



  

    

Enhance TestHelper assertions to handle non-String broadcastings


  



  [ GitHub ]


  

  


# File 'actioncable/lib/action_cable/channel/test_case.rb', line 274



def assert_broadcasts(stream_or_object, *args)
  super(broadcasting_for(stream_or_object), *args)
end


  








  

    #assert_has_stream(stream)  
  



  

    

Asserts that the specified stream has been started.



def test_assert_started_stream
  subscribe
  assert_has_stream 'messages'
end


  



  [ GitHub ]


  

  


# File 'actioncable/lib/action_cable/channel/test_case.rb', line 300



def assert_has_stream(stream)
  assert subscription.streams.include?(stream), "Stream #{stream} has not been started"
end


  








  

    #assert_has_stream_for(object)  
  



  

    

Asserts that the specified stream for a model has started.



def test_assert_started_stream_for
  subscribe id: 42
  assert_has_stream_for User.find(42)
end


  



  [ GitHub ]


  

  


# File 'actioncable/lib/action_cable/channel/test_case.rb', line 311



def assert_has_stream_for(object)
  assert_has_stream(broadcasting_for(object))
end


  








  

    #assert_no_streams  
  



  

    

Asserts that no streams have been started.



def test_assert_no_started_stream
  subscribe
  assert_no_streams
end


  



  [ GitHub ]


  

  


# File 'actioncable/lib/action_cable/channel/test_case.rb', line 289



def assert_no_streams
  assert subscription.streams.empty?, "No streams started was expected, but #{subscription.streams.count} found"
end


  








  

    #broadcasting_for(stream_or_object)   (private)
  

  [ GitHub ]


  

  


# File 'actioncable/lib/action_cable/channel/test_case.rb', line 320



def broadcasting_for(stream_or_object)
  return stream_or_object if stream_or_object.is_a?(String)

  self.class.channel_class.broadcasting_for(stream_or_object)
end


  








  

    #check_subscribed!   (private)
  

  [ GitHub ]


  

  


# File 'actioncable/lib/action_cable/channel/test_case.rb', line 316



def check_subscribed!
  raise "Must be subscribed!" if subscription.nil? || subscription.rejected?
end


  








  

    #perform(action, data = {})  
  



  

    

Perform action on a channel.



NOTE: Must be subscribed.


  



  [ GitHub ]


  

  


# File 'actioncable/lib/action_cable/channel/test_case.rb', line 261



def perform(action, data = {})
  check_subscribed!
  subscription.perform_action(data.stringify_keys.merge("action" => action.to_s))
end


  








  

    #stub_connection(identifiers = {})  
  



  

    

Set up test connection with the specified identifiers:



class ApplicationCable < ActionCable::Connection::Base
  identified_by :user, :token
end

stub_connection(user: users[:john], token: 'my-secret-token')


  



  [ GitHub ]


  

  


# File 'actioncable/lib/action_cable/channel/test_case.rb', line 239



def stub_connection(identifiers = {})
  @connection = ConnectionStub.new(identifiers)
end


  








  

    #subscribe(params = {})  
  



  

    

Subscribe to the channel under test. Optionally pass subscription parameters as a ::Hash.


  



  [ GitHub ]


  

  


# File 'actioncable/lib/action_cable/channel/test_case.rb', line 244



def subscribe(params = {})
  @connection ||= stub_connection
  @subscription = self.class.channel_class.new(connection, CHANNEL_IDENTIFIER, params.with_indifferent_access)
  @subscription.singleton_class.include(ChannelStub)
  @subscription.subscribe_to_channel
  @subscription
end


  








  

    #transmissions  
  



  

    

Returns messages transmitted into channel


  



  [ GitHub ]


  

  


# File 'actioncable/lib/action_cable/channel/test_case.rb', line 267



def transmissions
  # Return only directly sent message (via #transmit)
  connection.transmissions.filter_map { |data| data["message"] }
end


  








  

    #unsubscribe  
  



  

    

Unsubscribe the subscription under test.


  



  [ GitHub ]


  

  


# File 'actioncable/lib/action_cable/channel/test_case.rb', line 253



def unsubscribe
  check_subscribed!
  subscription.unsubscribe_from_channel
end