112 lines
3.2 KiB
Go
112 lines
3.2 KiB
Go
package manifestlist
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import (
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"bytes"
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"encoding/json"
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"reflect"
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"testing"
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"github.com/docker/distribution"
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)
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var expectedManifestListSerialization = []byte(`{
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"schemaVersion": 2,
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"mediaType": "application/vnd.docker.distribution.manifest.list.v2+json",
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"manifests": [
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{
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"mediaType": "application/vnd.docker.distribution.manifest.v2+json",
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"size": 985,
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"digest": "sha256:1a9ec845ee94c202b2d5da74a24f0ed2058318bfa9879fa541efaecba272e86b",
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"platform": {
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"architecture": "amd64",
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"os": "linux",
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"features": [
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"sse4"
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]
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}
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},
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{
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"mediaType": "application/vnd.docker.distribution.manifest.v2+json",
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"size": 2392,
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"digest": "sha256:6346340964309634683409684360934680934608934608934608934068934608",
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"platform": {
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"architecture": "sun4m",
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"os": "sunos"
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}
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}
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]
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}`)
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func TestManifestList(t *testing.T) {
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manifestDescriptors := []ManifestDescriptor{
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{
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Descriptor: distribution.Descriptor{
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Digest: "sha256:1a9ec845ee94c202b2d5da74a24f0ed2058318bfa9879fa541efaecba272e86b",
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Size: 985,
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MediaType: "application/vnd.docker.distribution.manifest.v2+json",
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},
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Platform: PlatformSpec{
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Architecture: "amd64",
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OS: "linux",
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Features: []string{"sse4"},
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},
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},
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{
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Descriptor: distribution.Descriptor{
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Digest: "sha256:6346340964309634683409684360934680934608934608934608934068934608",
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Size: 2392,
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MediaType: "application/vnd.docker.distribution.manifest.v2+json",
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},
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Platform: PlatformSpec{
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Architecture: "sun4m",
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OS: "sunos",
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},
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},
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}
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deserialized, err := FromDescriptors(manifestDescriptors)
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if err != nil {
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t.Fatalf("error creating DeserializedManifestList: %v", err)
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}
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mediaType, canonical, err := deserialized.Payload()
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if mediaType != MediaTypeManifestList {
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t.Fatalf("unexpected media type: %s", mediaType)
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}
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// Check that the canonical field is the same as json.MarshalIndent
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// with these parameters.
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p, err := json.MarshalIndent(&deserialized.ManifestList, "", " ")
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if err != nil {
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t.Fatalf("error marshaling manifest list: %v", err)
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}
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if !bytes.Equal(p, canonical) {
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t.Fatalf("manifest bytes not equal: %q != %q", string(canonical), string(p))
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}
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// Check that the canonical field has the expected value.
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if !bytes.Equal(expectedManifestListSerialization, canonical) {
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t.Fatalf("manifest bytes not equal: %q != %q", string(canonical), string(expectedManifestListSerialization))
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}
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var unmarshalled DeserializedManifestList
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if err := json.Unmarshal(deserialized.canonical, &unmarshalled); err != nil {
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t.Fatalf("error unmarshaling manifest: %v", err)
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}
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if !reflect.DeepEqual(&unmarshalled, deserialized) {
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t.Fatalf("manifests are different after unmarshaling: %v != %v", unmarshalled, *deserialized)
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}
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references := deserialized.References()
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if len(references) != 2 {
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t.Fatalf("unexpected number of references: %d", len(references))
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}
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for i := range references {
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if !reflect.DeepEqual(references[i], manifestDescriptors[i].Descriptor) {
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t.Fatalf("unexpected value %d returned by References: %v", i, references[i])
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}
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}
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}
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