text: from rasa_core import run
  
  CREDENTIALS_FILE = "examples/moodbot/credentials.yml"
  
  
  def test_create_http_input_channels():
      channels = run.create_http_input_channels(None, CREDENTIALS_FILE)
      assert len(channels) == 5
  
      # ensure correct order
      assert {c.name() for c in channels} == {"twilio", "slack",
                                              "telegram", "mattermost",
                                              "facebook"}
  
  
  def test_create_single_input_channels():
      channels = run.create_http_input_channels("facebook", CREDENTIALS_FILE)
      assert len(channels) == 1
      assert channels[0].name() == "facebook"
  
  
  def test_create_single_input_channels_by_class():
      channels = run.create_http_input_channels(
              "rasa_core.channels.channel.RestInput", CREDENTIALS_FILE)
      assert len(channels) == 1
      assert channels[0].name() == "rest"
  
  
  def test_create_single_input_channels_by_class_wo_credentials():
      channels = run.create_http_input_channels(
              "rasa_core.channels.channel.RestInput", credentials_file=None)
      assert len(channels) == 1
      assert channels[0].name() == "rest"
  