handle multi-responses with socketio on different channels

[fabong]

Hi,

In order to have a complete test, I needed to handle multi-responses with socketio on different channels. This pull-request adds the support of it.

Here is some examples of supported configurations :

2 responses sent on different channels :

scenarios:
  -
    engine: "socketio"
    flow:
      -
        emit:
          channel: "echo"
          data: "hello"
          response:
           - 
              channel: "echoed"
              data: "hello"
           -
              channel: "ack"
              data: "ack"

2 responses sent on the same channel and another one sent on different channel :

scenarios:
  -
    engine: "socketio"
    flow:
      -
        emit:
          channel: "echo"
          data: "hello"
          response:
           - 
              channel: "ack"
              data: "ack"
           -
              channel: "msg"
              data: "response1"
           -
              channel: "msg"
              data: "response2"

In that case, I assume that messages on the same channel should be sent in the same order as defined.

Because it is just an array support of the response existing parameters, it also works with the current configuration as :

scenarios:
  -
    engine: "socketio"
    flow:
      -
        emit:
          channel: "echo"
          data: "hello"
          response:
            channel: "ack"
            data: "ack"

What do you think about it ?

Thanks in advance,
Fabrice.

[hassy]

Nice. Would it make sense to support a timeout option, which would abort the scenario with an error if the responses aren't received within a certain time window?

[fabong]

Yes, you're right, it should be a good feature. I'll implement it next week.