Switch the namespace tests to fully use test fixtures

Indented the bp contents to make it easier to differentiate between
them and the directory in which they belong.

Bug: 181070625
Test: m nothing
Change-Id: Iae7495fb7c88769dc688006a41f4d21f57cf03b8
(cherry picked from commit 0fc6d32c)
Merged-In: Iae7495fb7c88769dc688006a41f4d21f57cf03b8