tests: add test for adaptor
tests: add test for adaptor

I noticed AdaptInfo missing test cases. I think this
func a bit important to test since we use this func
in other packages like content, store (walking), etc.

Signed-off-by: Furkan Turkal <8e393c530fae57606f38020c9fe77d3da9ed850f@trendyol.com>
Signed-off-by: Furkan <8e393c530fae57606f38020c9fe77d3da9ed850f@trendyol.com>

vdemeester/containerd,estesp/containerd,thaJeztah/containerd,mikebrow/containerd,thaJeztah/containerd,mikebrow/containerd,dmcgowan/containerd,containerd/containerd,estesp/containerd,dmcgowan/containerd,vdemeester/containerd,containerd/containerd