Add tests checking:
- sign mechanism is in working state
- module 'dummy' is able to sign/verify commit
- module 'ed25519' is able to sign/verify commit
- both modules could be used for the same commit
- 'ostree sign' builtin works with commits
- 'ostree commit' builtin able to sign commits
Signed-off-by: Denis Pynkin <denis.pynkin@collabora.com>
Denis Pynkin