Add null check for testListItem

Test: manual test
Bug: 288800105
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:67012dff9673bc302cb8e00e07aa298aec1e8548)
Merged-In: I0fafb5a3040dc8cd1e27f35b33a053677b339d3f
Change-Id: I0fafb5a3040dc8cd1e27f35b33a053677b339d3f
1 file changed