commit 5b3c27cd557890725d630281f1d6e650d88f79eb
author Nate Bosch <nbosch1@gmail.com> Fri Jun 30 18:05:30 2017 -0700
committer GitHub <noreply@github.com> Fri Jun 30 18:05:30 2017 -0700
tree 6e0f8c73f4dfdada561ed6686a7f03644d5349eb
parent 9a20c980313a1d696afd94344935a586021a5c0e

Ensure timers are started before awaits in tests (dart-lang/stream_transform#29)

Fixes dart-lang/stream_transform#25

These tests were relying on a 5ms Timer getting started asynchronously
and firing before a 10ms delay which is not guaranteed. By waiting an
extra cycle through the event loop to ensure that the Timer starts
before the delay we can have a better guarantee of ordering.

- Add a test util to wait for Timers to start and then elapse.
- Replace `await new Future.delayed(arbitraryDelay)` with the new utility.
- Add missing copyright notices on touched files.