am 9b430e11: am 73ae31ce: add a simple unit test for the OTA package verifier

Merge commit '9b430e11d6c4fb907d0aa96667142e2c00585e09'

* commit '9b430e11d6c4fb907d0aa96667142e2c00585e09':
  add a simple unit test for the OTA package verifier