   it 'slack.send', ->
     slack.send('Hello!')
     expect(slack.request).toHaveBeenCalledWith
-      channel: '#general'
       username: 'Robot'
       text: 'Hello!'
       icon_emoji: ':bell:'

      icon_url: 'http://something.com/icon.png'

    expect(slack.request).toHaveBeenCalledWith
      channel: '#general'
      username: 'Robot'
      text: 'Hello!'
      icon_url: 'http://something.com/icon.png'

    , undefined

    expect(slack.request).toHaveBeenCalledWith
      username: 'Robot'
      text: 'Hello!'
      icon_emoji: ':bell:'
