Refactor test scripts. am: a80a10ef47

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/modules/Nearby/+/17227387

Change-Id: Ifb7df0a8fde863b532478085142837321f8c2fcc
tree: 7316ac800a280e62e96c9109471ad55d68dc0f35
  1. nearby/