tree ef7484b22cb1500eacb174067159448fafcf0956
parent 6324fc9b8011f3acfd837fee2a58786b8c715126
author Andrew Scull <ascull@google.com> 1539598065 +0100
committer Andrew Scull <ascull@google.com> 1539598065 +0100

Use anonymous namespace in unit tests.

This is the convention for hidden symbols in C++, makes test boilerplate
hidden and mean you can't forget to make things static.

Change-Id: Ie59df08c7f2fdbd6ed3d6b9db34a981f4e61a133