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3 Commits

Author SHA1 Message Date
Johannes 'fish' Ziemke 75754e69f6 Add ErrPrerequisites to improve misleading errors 
There are two cases where we can't use a graphdriver:

1) the graphdriver itself isn't supported by the system
2) the graphdriver is supported by some configuration/prerequisites are
missing

This introduces a new error for the 2) case and uses it when trying to
run docker with btrfs backend on a non-btrfs filesystem.

Docker-DCO-1.1-Signed-off-by: Johannes 'fish' Ziemke <github@freigeist.org> (github: discordianfish)
 2014-05-29 17:09:55 +02:00
Alexander Larsson 55cd7dd7f9 grapdriver: Skip tests on non-supported backends 
For now this means the btrfs backend is skipped when run
inside make test. You can however run it manually if you want.

Docker-DCO-1.1-Signed-off-by: Alexander Larsson <alexl@redhat.com> (github: alexlarsson)
 2014-05-09 14:48:39 +02:00
Alexander Larsson 27744062aa graphdriver: Add generic test framework for graph drivers 
This adds daemon/graphdriver/graphtest/graphtest which has a few
generic tests for all graph drivers, and then uses these
from the btrs, devicemapper and vfs backends.

I've not yet added the aufs backend, because i can't test that here
atm. It should work though.

Docker-DCO-1.1-Signed-off-by: Alexander Larsson <alexl@redhat.com> (github: alexlarsson)
 2014-05-09 14:48:39 +02:00