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adds support for oci manifests and manifestlists

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Signed-off-by: Mike Brown <brownwm@us.ibm.com>
This commit is contained in:
Mike Brown 2016-11-17 12:28:05 -06:00
parent 749f6afb45
commit 9986e8ca7c
10 changed files with 957 additions and 62 deletions
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103
manifest/manifestlist/manifestlist_test.go
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@ -69,7 +69,7 @@ func TestManifestList(t *testing.T) {
t.Fatalf("error creating DeserializedManifestList: %v", err)
}
mediaType, canonical, err := deserialized.Payload()
mediaType, canonical, _ := deserialized.Payload()
if mediaType != MediaTypeManifestList {
t.Fatalf("unexpected media type: %s", mediaType)
@ -109,3 +109,104 @@ func TestManifestList(t *testing.T) {
}
}
}
var expectedOCIManifestListSerialization = []byte(`{
"schemaVersion": 2,
"mediaType": "application/vnd.oci.image.manifest.list.v1+json",
"manifests": [
{
"mediaType": "application/vnd.oci.image.manifest.v1+json",
"size": 985,
"digest": "sha256:1a9ec845ee94c202b2d5da74a24f0ed2058318bfa9879fa541efaecba272e86b",
"platform": {
"architecture": "amd64",
"os": "linux",
"features": [
"sse4"
]
}
},
{
"mediaType": "application/vnd.oci.image.manifest.v1+json",
"size": 2392,
"digest": "sha256:6346340964309634683409684360934680934608934608934608934068934608",
"platform": {
"architecture": "sun4m",
"os": "sunos"
}
}
]
}`)
func TestOCIManifestList(t *testing.T) {
manifestDescriptors := []ManifestDescriptor{
{
Descriptor: distribution.Descriptor{
Digest: "sha256:1a9ec845ee94c202b2d5da74a24f0ed2058318bfa9879fa541efaecba272e86b",
Size: 985,
MediaType: "application/vnd.oci.image.manifest.v1+json",
},
Platform: PlatformSpec{
Architecture: "amd64",
OS: "linux",
Features: []string{"sse4"},
},
},
{
Descriptor: distribution.Descriptor{
Digest: "sha256:6346340964309634683409684360934680934608934608934608934068934608",
Size: 2392,
MediaType: "application/vnd.oci.image.manifest.v1+json",
},
Platform: PlatformSpec{
Architecture: "sun4m",
OS: "sunos",
},
},
}
deserialized, err := FromDescriptors(manifestDescriptors)
if err != nil {
t.Fatalf("error creating DeserializedManifestList: %v", err)
}
mediaType, canonical, _ := deserialized.Payload()
if mediaType != MediaTypeOCIManifestList {
t.Fatalf("unexpected media type: %s", mediaType)
}
// Check that the canonical field is the same as json.MarshalIndent
// with these parameters.
p, err := json.MarshalIndent(&deserialized.ManifestList, "", " ")
if err != nil {
t.Fatalf("error marshaling manifest list: %v", err)
}
if !bytes.Equal(p, canonical) {
t.Fatalf("manifest bytes not equal: %q != %q", string(canonical), string(p))
}
// Check that the canonical field has the expected value.
if !bytes.Equal(expectedOCIManifestListSerialization, canonical) {
t.Fatalf("manifest bytes not equal: %q != %q", string(canonical), string(expectedOCIManifestListSerialization))
}
var unmarshalled DeserializedManifestList
if err := json.Unmarshal(deserialized.canonical, &unmarshalled); err != nil {
t.Fatalf("error unmarshaling manifest: %v", err)
}
if !reflect.DeepEqual(&unmarshalled, deserialized) {
t.Fatalf("manifests are different after unmarshaling: %v != %v", unmarshalled, *deserialized)
}
references := deserialized.References()
if len(references) != 2 {
t.Fatalf("unexpected number of references: %d", len(references))
}
for i := range references {
if !reflect.DeepEqual(references[i], manifestDescriptors[i].Descriptor) {
t.Fatalf("unexpected value %d returned by References: %v", i, references[i])
}
}
}