commit 11bb00f6f3d0f0d743d55991959658febaa14688
author Nate Bosch <nbosch1@gmail.com> Mon Jun 26 10:47:17 2017 -0700
committer GitHub <noreply@github.com> Mon Jun 26 10:47:17 2017 -0700
tree d63ab54fef3e1040e885ec7a5babbf98b85479f3
parent dff871c14642097907ae3207e67e27a2f62e853f

Call `tap` data callback once per event (dart-lang/stream_transform#26)

This is slightly different from the other bugs. In this case the output
stream correctly forwarded values to all listeners, but the callback was
also called once per listener.

- Add `handleError` to `fromHandlers` and tests.
- Add tests for expected single-call behavior. These fail on the old
  implementation.
- Add test for the values getting to multiple listeners. This passes on
  both the old and new implementation.
- Switch to `fromHandlers`.