tree b61d448ce61db6cb7f911462b8ae848e70737484
parent cb83004e121df9ecef10d601cae32c849b15cf88
author JW Wang <wangchun@google.com> 1585920997 +0800
committer JW Wang <wangchun@google.com> 1585921375 +0800

Skip the test if no mainline modules installed

The test failed because we failed to enable rollback for
ModuleMetadataGoogle which is not a module on AOSP builds.

Let's skip the test for builds which have no mainline modules
installed.

Bug: 152721401
Test: atest StagedRollbackTest
Change-Id: Iaf75dea5388e2a751a26f983a79924c4358d4833