test: fix coverity UNINIT_CTOR cctest warning
Explicitly initialize platform_
to nullptr. Coverity cannot divine
it is set and cleared by the Setup() and TearDown() methods.
cc @danbev
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
Explicitly initialize platform_
to nullptr. Coverity cannot divine
it is set and cleared by the Setup() and TearDown() methods.
cc @danbev