Switest lets you write functional tests for your voice applications, using Adhearsion to drive calls via FreeSWITCH.

To test your fancy new PBX and its phone menu, you could write the following Switest scenario, which dials your number, presses "1" and checks that Bob was called as a result of that:

# test/scenario/pbx_scenario.rb

require "switest"
require "switest/autorun"

class PbxScenario < Switest::Scenario
  def test_dial_and_press_1
    # First we make an outbound call. All parameters are passed
    # directly to `Adhearsion::OutboundCall#dial`.
    alice = Agent.dial("sofia/gateway/your-provider/88888888")

    # We set up an agent that will listen for inbound calls.
    # All parameters are HasGuardedHandlers guards.
    bob = Agent.listen_for_call(to: /^22334455@/)

    # Wait until the call has been answered by the PBX.
    alice.wait_for_answer

    # Send a DTMF
    alice.send_dtmf("1")

    # Check that the call to Bob has already arrived, or wait
    # up to five seconds for it to arrive.
    assert_call(bob)
  end
end

ruby test/scenario/pbx_scenario.rb

Or you might want to test that you can call Bob, and that Bob can transfer the call to Charlie by pressing "#1#":

# test/scenario/transfer_scenario.rb

require "switest"
require "switest/autorun"

class TransferScenario < Switest::Scenario
  def test_transfer_call
    bob = Agent.listen_for_call to: /^1000@/
    alice = Agent.dial("sofia/gateway/your-provider/1000")
    
    assert_call(bob)
    
    charlie = Agent.listen_for_call to: /^2000@/
    
    bob.answer
    sleep 1
    bob.send_dtmf("#1#")
    
    assert_call(charlie)
    assert_hungup(bob)

    charlie.hangup
  end
end

You need:

1. FreeSWITCH instance with mod_rayo configured

2. Sofia profile for Switest

3. The following dialplan for the Switest profile:

   <context name="switest">
     <extension name="switest">
       <condition>
         <action application="rayo" data="switest"/>
       </condition>
     </extension>
   </context>

Switest::Scenario inherits from Minitest::Test, so all your regular assertions are available. Switest provides a few custom assertions:

• assert_call
• assert_no_call
• assert_hungup
• assert_not_hungup
• assert_dtmf

Due to limitations in mod_rayo the only way to send a DTMF at the moment, is by playing the tones, so the endpoint you are testing must support inband DTMF for the DTMF features to work.

This is prototype software, but still quite powerful. At the moment it is running 50+ scenarios at Firmafon, testing everything from IVR menus to attended transfers and voicemails.

The MIT License (MIT)

Copyright (c) 2015 Firmafon ApS, Harry Vangberg <[email protected]>

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
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copies of the Software, and to permit persons to whom the Software is
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The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

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