package ocischema import ( "reflect" "testing" "github.com/docker/distribution" "github.com/docker/distribution/context" "github.com/opencontainers/go-digest" ) type mockBlobService struct { descriptors map[digest.Digest]distribution.Descriptor } func (bs *mockBlobService) Stat(ctx context.Context, dgst digest.Digest) (distribution.Descriptor, error) { if descriptor, ok := bs.descriptors[dgst]; ok { return descriptor, nil } return distribution.Descriptor{}, distribution.ErrBlobUnknown } func (bs *mockBlobService) Get(ctx context.Context, dgst digest.Digest) ([]byte, error) { panic("not implemented") } func (bs *mockBlobService) Open(ctx context.Context, dgst digest.Digest) (distribution.ReadSeekCloser, error) { panic("not implemented") } func (bs *mockBlobService) Put(ctx context.Context, mediaType string, p []byte) (distribution.Descriptor, error) { d := distribution.Descriptor{ Digest: digest.FromBytes(p), Size: int64(len(p)), MediaType: "application/octet-stream", } bs.descriptors[d.Digest] = d return d, nil } func (bs *mockBlobService) Create(ctx context.Context, options ...distribution.BlobCreateOption) (distribution.BlobWriter, error) { panic("not implemented") } func (bs *mockBlobService) Resume(ctx context.Context, id string) (distribution.BlobWriter, error) { panic("not implemented") } func TestBuilder(t *testing.T) { imgJSON := []byte(`{ "architecture": "amd64", "config": { "AttachStderr": false, "AttachStdin": false, "AttachStdout": false, "Cmd": [ "/bin/sh", "-c", "echo hi" ], "Domainname": "", "Entrypoint": null, "Env": [ "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin", "derived=true", "asdf=true" ], "Hostname": "23304fc829f9", "Image": "sha256:4ab15c48b859c2920dd5224f92aabcd39a52794c5b3cf088fb3bbb438756c246", "Labels": {}, "OnBuild": [], "OpenStdin": false, "StdinOnce": false, "Tty": false, "User": "", "Volumes": null, "WorkingDir": "" }, "container": "e91032eb0403a61bfe085ff5a5a48e3659e5a6deae9f4d678daa2ae399d5a001", "container_config": { "AttachStderr": false, "AttachStdin": false, "AttachStdout": false, "Cmd": [ "/bin/sh", "-c", "#(nop) CMD [\"/bin/sh\" \"-c\" \"echo hi\"]" ], "Domainname": "", "Entrypoint": null, "Env": [ "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin", "derived=true", "asdf=true" ], "Hostname": "23304fc829f9", "Image": "sha256:4ab15c48b859c2920dd5224f92aabcd39a52794c5b3cf088fb3bbb438756c246", "Labels": {}, "OnBuild": [], "OpenStdin": false, "StdinOnce": false, "Tty": false, "User": "", "Volumes": null, "WorkingDir": "" }, "created": "2015-11-04T23:06:32.365666163Z", "docker_version": "1.9.0-dev", "history": [ { "created": "2015-10-31T22:22:54.690851953Z", "created_by": "/bin/sh -c #(nop) ADD file:a3bc1e842b69636f9df5256c49c5374fb4eef1e281fe3f282c65fb853ee171c5 in /" }, { "created": "2015-10-31T22:22:55.613815829Z", "created_by": "/bin/sh -c #(nop) CMD [\"sh\"]" }, { "created": "2015-11-04T23:06:30.934316144Z", "created_by": "/bin/sh -c #(nop) ENV derived=true", "empty_layer": true }, { "created": "2015-11-04T23:06:31.192097572Z", "created_by": "/bin/sh -c #(nop) ENV asdf=true", "empty_layer": true }, { "created": "2015-11-04T23:06:32.083868454Z", "created_by": "/bin/sh -c dd if=/dev/zero of=/file bs=1024 count=1024" }, { "created": "2015-11-04T23:06:32.365666163Z", "created_by": "/bin/sh -c #(nop) CMD [\"/bin/sh\" \"-c\" \"echo hi\"]", "empty_layer": true } ], "os": "linux", "rootfs": { "diff_ids": [ "sha256:c6f988f4874bb0add23a778f753c65efe992244e148a1d2ec2a8b664fb66bbd1", "sha256:5f70bf18a086007016e948b04aed3b82103a36bea41755b6cddfaf10ace3c6ef", "sha256:13f53e08df5a220ab6d13c58b2bf83a59cbdc2e04d0a3f041ddf4b0ba4112d49" ], "type": "layers" } }`) configDigest := digest.FromBytes(imgJSON) descriptors := []distribution.Descriptor{ { Digest: digest.Digest("sha256:a3ed95caeb02ffe68cdd9fd84406680ae93d633cb16422d00e8a7c22955b46d4"), Size: 5312, MediaType: MediaTypeLayer, }, { Digest: digest.Digest("sha256:86e0e091d0da6bde2456dbb48306f3956bbeb2eae1b5b9a43045843f69fe4aaa"), Size: 235231, MediaType: MediaTypeLayer, }, { Digest: digest.Digest("sha256:b4ed95caeb02ffe68cdd9fd84406680ae93d633cb16422d00e8a7c22955b46d4"), Size: 639152, MediaType: MediaTypeLayer, }, } bs := &mockBlobService{descriptors: make(map[digest.Digest]distribution.Descriptor)} builder := NewManifestBuilder(bs, imgJSON) for _, d := range descriptors { if err := builder.AppendReference(d); err != nil { t.Fatalf("AppendReference returned error: %v", err) } } built, err := builder.Build(context.Background()) if err != nil { t.Fatalf("Build returned error: %v", err) } // Check that the config was put in the blob store _, err = bs.Stat(context.Background(), configDigest) if err != nil { t.Fatal("config was not put in the blob store") } manifest := built.(*DeserializedManifest).Manifest if manifest.Versioned.SchemaVersion != 2 { t.Fatal("SchemaVersion != 2") } target := manifest.Target() if target.Digest != configDigest { t.Fatalf("unexpected digest in target: %s", target.Digest.String()) } if target.MediaType != MediaTypeConfig { t.Fatalf("unexpected media type in target: %s", target.MediaType) } if target.Size != 3153 { t.Fatalf("unexpected size in target: %d", target.Size) } references := manifest.References() expected := append([]distribution.Descriptor{manifest.Target()}, descriptors...) if !reflect.DeepEqual(references, expected) { t.Fatal("References() does not match the descriptors added") } }