Create tests for - [x] push channel https://github.com/filecoin-project/go-data-transfer/pull/157 - fail to open channel to responder - responder doesn't respond to open channel request - all data sent to responder but responder doesn't send "complete" message - [x] pull channel https://github.com/filecoin-project/go-data-transfer/pull/162 - fail to open channel to responder - responder doesn't respond to open channel request - all data received but responder doesn't respond to "complete" message