stream, test: Add test for _readableState.needReadable and _readableState.emittedReadable
- Version: all
- Platform: all
- Subsystem: stream
Part of https://github.com/nodejs/node/issues/8644.
State variable definition: https://github.com/nodejs/node/blob/master/lib/_stream_readable.js#L72-L77
See also https://github.com/nodejs/node/issues/10214
cc @addaleax
@Fishrock123
@nodejs/streams