tree abf1bd1bfe6e26da5a7b812c905104aae4c4345a
parent 2b2e047243cc1db7c5f0c744822db0fdbb7a95e0
author Jorge Lucangeli Obes <jorgelo@google.com> 1454367901 -0800
committer Jorge Lucangeli Obes <jorgelo@google.com> 1454431201 -0800

Refactor IpTables class to remove duplication.

This CL tries to remove as much duplicated code from the IpTables class
as possible. The basic construct of running the same command with
different executables/options is extracted into a helper function.

Moreover, the unit tests are simplified by mocking one function call
higher and removing a lot of set-up duplication.

Bug: 26911013
Change-Id: Iecdacab2ef6ffa5631c877835bdfb0bf7191536c