distribution/storage/paths_test.go
Stephen J Day 3277d9fc74 Redesign path layout for backend storage
Several requirements for storing registry data have been compiled and the
backend layout has been refactored to comply. Specifically, we now store most
data as blobs that are linked from repositories. All data access is traversed
through repositories. Manifest updates are no longer destructive and support
references by digest or tag. Signatures for manifests are now stored externally
to the manifest payload to allow merging of signatures posted at different
time.

The design is detailed in the documentation for pathMapper.

Signed-off-by: Stephen J Day <stephen.day@docker.com>
2015-01-14 11:34:47 -08:00

138 lines
3.6 KiB
Go

package storage
import (
"testing"
"github.com/docker/distribution/digest"
)
func TestPathMapper(t *testing.T) {
pm := &pathMapper{
root: "/pathmapper-test",
}
for _, testcase := range []struct {
spec pathSpec
expected string
err error
}{
{
spec: manifestRevisionPathSpec{
name: "foo/bar",
revision: "sha256:abcdef0123456789",
},
expected: "/pathmapper-test/repositories/foo/bar/manifests/revisions/sha256/abcdef0123456789",
},
{
spec: manifestRevisionLinkPathSpec{
name: "foo/bar",
revision: "sha256:abcdef0123456789",
},
expected: "/pathmapper-test/repositories/foo/bar/manifests/revisions/sha256/abcdef0123456789/link",
},
{
spec: manifestSignatureLinkPathSpec{
name: "foo/bar",
revision: "sha256:abcdef0123456789",
signature: "sha256:abcdef0123456789",
},
expected: "/pathmapper-test/repositories/foo/bar/manifests/revisions/sha256/abcdef0123456789/signatures/sha256/abcdef0123456789/link",
},
{
spec: manifestSignaturesPathSpec{
name: "foo/bar",
revision: "sha256:abcdef0123456789",
},
expected: "/pathmapper-test/repositories/foo/bar/manifests/revisions/sha256/abcdef0123456789/signatures",
},
{
spec: manifestTagsPathSpec{
name: "foo/bar",
},
expected: "/pathmapper-test/repositories/foo/bar/manifests/tags",
},
{
spec: manifestTagPathSpec{
name: "foo/bar",
tag: "thetag",
},
expected: "/pathmapper-test/repositories/foo/bar/manifests/tags/thetag",
},
{
spec: manifestTagCurrentPathSpec{
name: "foo/bar",
tag: "thetag",
},
expected: "/pathmapper-test/repositories/foo/bar/manifests/tags/thetag/current/link",
},
{
spec: manifestTagIndexPathSpec{
name: "foo/bar",
tag: "thetag",
},
expected: "/pathmapper-test/repositories/foo/bar/manifests/tags/thetag/index",
},
{
spec: manifestTagIndexEntryPathSpec{
name: "foo/bar",
tag: "thetag",
revision: "sha256:abcdef0123456789",
},
expected: "/pathmapper-test/repositories/foo/bar/manifests/tags/thetag/index/sha256/abcdef0123456789/link",
},
{
spec: layerLinkPathSpec{
name: "foo/bar",
digest: "tarsum.v1+test:abcdef",
},
expected: "/pathmapper-test/repositories/foo/bar/layers/tarsum/v1/test/abcdef/link",
},
{
spec: blobDataPathSpec{
digest: digest.Digest("tarsum.dev+sha512:abcdefabcdefabcdef908909909"),
},
expected: "/pathmapper-test/blobs/tarsum/dev/sha512/ab/abcdefabcdefabcdef908909909/data",
},
{
spec: blobDataPathSpec{
digest: digest.Digest("tarsum.v1+sha256:abcdefabcdefabcdef908909909"),
},
expected: "/pathmapper-test/blobs/tarsum/v1/sha256/ab/abcdefabcdefabcdef908909909/data",
},
{
spec: uploadDataPathSpec{
name: "foo/bar",
uuid: "asdf-asdf-asdf-adsf",
},
expected: "/pathmapper-test/repositories/foo/bar/uploads/asdf-asdf-asdf-adsf/data",
},
{
spec: uploadStartedAtPathSpec{
name: "foo/bar",
uuid: "asdf-asdf-asdf-adsf",
},
expected: "/pathmapper-test/repositories/foo/bar/uploads/asdf-asdf-asdf-adsf/startedat",
},
} {
p, err := pm.path(testcase.spec)
if err != nil {
t.Fatalf("unexpected generating path (%T): %v", testcase.spec, err)
}
if p != testcase.expected {
t.Fatalf("unexpected path generated (%T): %q != %q", testcase.spec, p, testcase.expected)
}
}
// Add a few test cases to ensure we cover some errors
// Specify a path that requires a revision and get a digest validation error.
badpath, err := pm.path(manifestSignaturesPathSpec{
name: "foo/bar",
})
if err == nil {
t.Fatalf("expected an error when mapping an invalid revision: %s", badpath)
}
}