kubeflow / pipelines / 3386 / 1

78%

master: 0%

push

travis-ci-com

SDK - Improve errors when ContainerOp.output is unavailable

ContainerOp.output is only available when there is only one output.
Right now, when there are multiple outputs it just holds `None` instead of the a task output reference.
In this case however it's indistinguishable from just passing None argument.
This PR gives a quick fix to make accessing the nonexistent `.output` a compile-time error.

1540 of 1725 branches covered (89.28%)

Branch coverage included in aggregate %.

2638 of 2772 relevant lines covered (95.17%)

61.26 hits per line