Move storage package under registry package

Signed-off-by: Stephen J Day <stephen.day@docker.com>

docs/storage/paths_test.go

@@ -0,0 +1,138 @@
+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)
+	}
+
+}