No finish event, end event called when it shouldn't be.

[SeanHayes]

I noticed a discrepancy between my handlers running in a live env and running during tests. In test using a mock response the end event gets called, but it doesn't get called in production. The node docs say that the end event should only get called when the stream is in flowing mode: https://nodejs.org/api/stream.html#stream_event_end

Conversely, in a live env the finish event gets fired on my responses, but not on mock responses.

[eugef]

finish event is fired with the latest version of package