text: import test from 'ava'
  import Receiver from 'receiver/base'
  import SessionReceiver from 'receiver/session'
  
  const shuffler = 'Test shuffler public key'
  const shufflers = [ shuffler ]
  const phaseIdentifier = 8
  const phaseIdentifiers = [ phaseIdentifier ]
  
  test('subclass', t => {
    const receiver = new SessionReceiver(shufflers, phaseIdentifiers)
    t.true(receiver instanceof Receiver)
  })
  