Comment 7 for bug 1970586

This appears to work with my simple script, and now pass the tests in the customer's MIDI library.

Thanks very much for your time here!

> mocha test/unit/*.js && node test/virtual-loopback-test-automated.js

  midi.Input
    ✔ should raise when not called with new
    ✔ should be an emitter
    .getPortCount
      ✔ .getPortCoun should return an integer
    .getPortName
      ✔ requires an argument
      ✔ requires an integer

MidiInAlsa::getPortName: error looking for port name!

      ✔ returns an empty string for unknown port
    .openPort
      ✔ requires an argument
      ✔ requires an integer
      ✔ requires a valid port
    .openVirtualPort
      ✔ requires an argument
      ✔ requires a string
    .on('message')
      ✔ allows promises to resolve

  midi.Output
    ✔ should raise when not called with new
    ✔ should not be an emitter
    .getPortCount
      ✔ should return an integer
    .getPortName
      ✔ requires an argument
      ✔ requires an integer

MidiOutAlsa::getPortName: error looking for port name!

      ✔ returns an empty string for unknown port
    .openPort
      ✔ requires an argument
      ✔ requires an integer
      ✔ requires a valid port
    .openVirtualPort
      ✔ requires an argument
      ✔ requires a string
    .closePort
      ✔ allows you to close a port that was not opened
    .send
      ✔ should require an array argument
    .sendMessage
      ✔ should require an array argument

  26 passing (61ms)

Enumerating inputs
Input found: Midi Through:Midi Through Port-0 14:0
Input found: RtMidi Output Client:node-midi Virtual Output 128:0
Enumerating outputs
Output found: Midi Through:Midi Through Port-0 14:0
Output found: RtMidi Output Client:node-midi Virtual Output 128:0
Sending message
Sending message
Sending message
Sending message