Companion test to 0c2dc8c3.

Bug: angleproject:2786
Change-Id: Idfbd557dcf6b6bf7e62821ec554bdb3138b616ab
Reviewed-on: https://chromium-review.googlesource.com/c/1367750
Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>