Refactor test scripts. am: a80a10ef47

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

Change-Id: I2d47d38cf41448ab0a5b74d4fc30955108a3b05b
tree: 25af3ad0b0e57f2ad91b49bafc01e2e3ea53c6d4
  1. nearby/