tree 0a19df6982ea90baa304f5c0ae43092f0776ba22
parent 2ea277d7077ce0dc1d5276c3fba22511016f30de
author Mark Maglana <mmaglana@gmail.com> 1393613854 -0800
committer Mark Maglana <mmaglana@gmail.com> 1394486516 -0700

Improve readability of test_networks

* Use list comprehension where it makes sense.

* Remove redundant assertions. That is, assertions in some tests that
  are really the responsibility of another test. For example, checking
  if a given network id is present in a list was being checked in both
  test_list_networks and test_list_networks_fields.

* Create assertEmpty and assertNotEmpty methods to help further clarify
  the intent of certain assertions.

Change-Id: Id91b2d2b6699eaf4acc332b3e76f9cb46c09d7c7