tree 501e2e4a1779ddba9f3c6af7ce5caf1e28d0a368
parent 12d9bf1b3996977fc63db3e6620293f6dd602700
author Chet Haase <chet@google.com> 1472865493 -0700
committer Chet Haase <chet@google.com> 1473370433 -0700

fix transition tests race condition

Transition tests are reliant upon layout running, which sets various
values that are then checked The mechanism used to ensure that layout
had run (Instrumentation.waitForIdleSync()) doesn't do what we need, and
it is possible for the idle condition to succeed even while the queue still
has the pending layout request on it.

The fix is to introduce a new method in WidgetTestUtils to do what we need
here: wait on an actual layout to run.

Issue #31249295 CTS: ChangeBoundsTest failures

Change-Id: Iec7a5735a9d86fbe98c58acd1f32e325e9fdcab7