Enables showing debug logs in testing output. For integration tests the client log output will show in addition to daemon output, with timestamps for better correlation. Signed-off-by: Derek McGowan <derek@mcgstyle.net>
		
			
				
	
	
		
			364 lines
		
	
	
		
			9.8 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			364 lines
		
	
	
		
			9.8 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
/*
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   Copyright The containerd Authors.
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   Licensed under the Apache License, Version 2.0 (the "License");
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   you may not use this file except in compliance with the License.
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   You may obtain a copy of the License at
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       http://www.apache.org/licenses/LICENSE-2.0
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   Unless required by applicable law or agreed to in writing, software
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   distributed under the License is distributed on an "AS IS" BASIS,
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   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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   See the License for the specific language governing permissions and
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   limitations under the License.
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*/
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package containerd
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import (
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	"bytes"
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	"context"
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	"encoding/json"
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	"io"
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	"io/ioutil"
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	"math/rand"
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	"reflect"
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	"runtime"
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	"testing"
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	"github.com/containerd/containerd/archive/tartest"
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	"github.com/containerd/containerd/images"
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	"github.com/containerd/containerd/images/archive"
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	digest "github.com/opencontainers/go-digest"
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	specs "github.com/opencontainers/image-spec/specs-go"
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	ocispec "github.com/opencontainers/image-spec/specs-go/v1"
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)
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// TestExportAndImport exports testImage as a tar stream,
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// and import the tar stream as a new image.
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func TestExportAndImport(t *testing.T) {
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	// TODO: support windows
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	if testing.Short() || runtime.GOOS == "windows" {
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		t.Skip()
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	}
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	ctx, cancel := testContext(t)
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	defer cancel()
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	client, err := New(address)
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	if err != nil {
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		t.Fatal(err)
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	}
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	defer client.Close()
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	_, err = client.Fetch(ctx, testImage)
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	if err != nil {
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		t.Fatal(err)
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	}
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	wb := bytes.NewBuffer(nil)
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	err = client.Export(ctx, wb, archive.WithAllPlatforms(), archive.WithImage(client.ImageService(), testImage))
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	if err != nil {
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		t.Fatal(err)
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	}
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	opts := []ImportOpt{
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		WithImageRefTranslator(archive.AddRefPrefix("foo/bar")),
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	}
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	imgrecs, err := client.Import(ctx, bytes.NewReader(wb.Bytes()), opts...)
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	if err != nil {
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		t.Fatalf("Import failed: %+v", err)
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	}
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	for _, imgrec := range imgrecs {
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		if imgrec.Name == testImage {
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			continue
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		}
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		err = client.ImageService().Delete(ctx, imgrec.Name)
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		if err != nil {
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			t.Fatal(err)
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		}
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	}
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}
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func TestImport(t *testing.T) {
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	ctx, cancel := testContext(t)
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	defer cancel()
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	client, err := New(address)
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	if err != nil {
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		t.Fatal(err)
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	}
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	defer client.Close()
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	tc := tartest.TarContext{}
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	b1, d1 := createContent(256, 1)
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	empty := []byte("{}")
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	version := []byte("1.0")
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	c1, d2 := createConfig()
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	m1, d3, expManifest := createManifest(c1, [][]byte{b1})
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	provider := client.ContentStore()
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	checkManifest := func(ctx context.Context, t *testing.T, d ocispec.Descriptor, expManifest *ocispec.Manifest) {
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		m, err := images.Manifest(ctx, provider, d, nil)
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		if err != nil {
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			t.Fatalf("unable to read target blob: %+v", err)
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		}
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		if m.Config.Digest != d2 {
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			t.Fatalf("unexpected digest hash %s, expected %s", m.Config.Digest, d2)
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		}
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		if len(m.Layers) != 1 {
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			t.Fatalf("expected 1 layer, has %d", len(m.Layers))
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		}
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		if m.Layers[0].Digest != d1 {
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			t.Fatalf("unexpected layer hash %s, expected %s", m.Layers[0].Digest, d1)
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		}
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		if expManifest != nil {
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			if !reflect.DeepEqual(m.Layers, expManifest.Layers) {
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				t.Fatalf("DeepEqual on Layers failed: %v vs. %v", m.Layers, expManifest.Layers)
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			}
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			if !reflect.DeepEqual(m.Config, expManifest.Config) {
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				t.Fatalf("DeepEqual on Config failed: %v vs. %v", m.Config, expManifest.Config)
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			}
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		}
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	}
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	for _, tc := range []struct {
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		Name   string
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		Writer tartest.WriterToTar
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		Check  func(*testing.T, []images.Image)
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		Opts   []ImportOpt
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	}{
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		{
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			Name: "DockerV2.0",
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			Writer: tartest.TarAll(
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				tc.Dir("bd765cd43e95212f7aa2cab51d0a", 0755),
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				tc.File("bd765cd43e95212f7aa2cab51d0a/json", empty, 0644),
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				tc.File("bd765cd43e95212f7aa2cab51d0a/layer.tar", b1, 0644),
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				tc.File("bd765cd43e95212f7aa2cab51d0a/VERSION", version, 0644),
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				tc.File("repositories", []byte(`{"any":{"1":"bd765cd43e95212f7aa2cab51d0a"}}`), 0644),
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			),
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		},
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		{
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			Name: "DockerV2.1",
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			Writer: tartest.TarAll(
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				tc.Dir("bd765cd43e95212f7aa2cab51d0a", 0755),
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				tc.File("bd765cd43e95212f7aa2cab51d0a/json", empty, 0644),
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				tc.File("bd765cd43e95212f7aa2cab51d0a/layer.tar", b1, 0644),
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				tc.File("bd765cd43e95212f7aa2cab51d0a/VERSION", version, 0644),
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				tc.File("e95212f7aa2cab51d0abd765cd43.json", c1, 0644),
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				tc.File("manifest.json", []byte(`[{"Config":"e95212f7aa2cab51d0abd765cd43.json","RepoTags":["test-import:notlatest", "another/repo:tag"],"Layers":["bd765cd43e95212f7aa2cab51d0a/layer.tar"]}]`), 0644),
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			),
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			Check: func(t *testing.T, imgs []images.Image) {
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				if len(imgs) == 0 {
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					t.Fatalf("no images")
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				}
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				names := []string{
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					"docker.io/library/test-import:notlatest",
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					"docker.io/another/repo:tag",
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				}
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				checkImages(t, imgs[0].Target.Digest, imgs, names...)
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				checkManifest(ctx, t, imgs[0].Target, nil)
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			},
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		},
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		{
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			Name: "OCI-BadFormat",
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			Writer: tartest.TarAll(
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				tc.File("oci-layout", []byte(`{"imageLayoutVersion":"2.0.0"}`), 0644),
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			),
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		},
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		{
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			Name: "OCI",
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			Writer: tartest.TarAll(
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				tc.Dir("blobs", 0755),
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				tc.Dir("blobs/sha256", 0755),
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				tc.File("blobs/sha256/"+d1.Encoded(), b1, 0644),
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				tc.File("blobs/sha256/"+d2.Encoded(), c1, 0644),
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				tc.File("blobs/sha256/"+d3.Encoded(), m1, 0644),
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				tc.File("index.json", createIndex(m1, "latest", "docker.io/lib/img:ok"), 0644),
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				tc.File("oci-layout", []byte(`{"imageLayoutVersion":"1.0.0"}`), 0644),
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			),
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			Check: func(t *testing.T, imgs []images.Image) {
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				names := []string{
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					"latest",
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					"docker.io/lib/img:ok",
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				}
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				checkImages(t, d3, imgs, names...)
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				checkManifest(ctx, t, imgs[0].Target, expManifest)
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			},
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		},
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		{
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			Name: "OCIPrefixName",
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			Writer: tartest.TarAll(
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				tc.Dir("blobs", 0755),
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				tc.Dir("blobs/sha256", 0755),
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				tc.File("blobs/sha256/"+d1.Encoded(), b1, 0644),
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				tc.File("blobs/sha256/"+d2.Encoded(), c1, 0644),
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				tc.File("blobs/sha256/"+d3.Encoded(), m1, 0644),
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				tc.File("index.json", createIndex(m1, "latest", "docker.io/lib/img:ok"), 0644),
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				tc.File("oci-layout", []byte(`{"imageLayoutVersion":"1.0.0"}`), 0644),
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			),
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			Check: func(t *testing.T, imgs []images.Image) {
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				names := []string{
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					"localhost:5000/myimage:latest",
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					"docker.io/lib/img:ok",
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				}
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				checkImages(t, d3, imgs, names...)
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				checkManifest(ctx, t, imgs[0].Target, expManifest)
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			},
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			Opts: []ImportOpt{
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				WithImageRefTranslator(archive.AddRefPrefix("localhost:5000/myimage")),
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			},
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		},
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		{
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			Name: "OCIPrefixName2",
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			Writer: tartest.TarAll(
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				tc.Dir("blobs", 0755),
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				tc.Dir("blobs/sha256", 0755),
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				tc.File("blobs/sha256/"+d1.Encoded(), b1, 0644),
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				tc.File("blobs/sha256/"+d2.Encoded(), c1, 0644),
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				tc.File("blobs/sha256/"+d3.Encoded(), m1, 0644),
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				tc.File("index.json", createIndex(m1, "latest", "localhost:5000/myimage:old", "docker.io/lib/img:ok"), 0644),
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				tc.File("oci-layout", []byte(`{"imageLayoutVersion":"1.0.0"}`), 0644),
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			),
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			Check: func(t *testing.T, imgs []images.Image) {
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				names := []string{
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					"localhost:5000/myimage:latest",
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					"localhost:5000/myimage:old",
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				}
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				checkImages(t, d3, imgs, names...)
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				checkManifest(ctx, t, imgs[0].Target, expManifest)
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			},
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			Opts: []ImportOpt{
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				WithImageRefTranslator(archive.FilterRefPrefix("localhost:5000/myimage")),
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			},
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		},
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	} {
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		t.Run(tc.Name, func(t *testing.T) {
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			images, err := client.Import(ctx, tartest.TarFromWriterTo(tc.Writer), tc.Opts...)
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			if err != nil {
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				if tc.Check != nil {
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					t.Errorf("unexpected import error: %+v", err)
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				}
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				return
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			} else if tc.Check == nil {
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				t.Fatalf("expected error on import")
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			}
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			tc.Check(t, images)
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		})
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	}
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}
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func checkImages(t *testing.T, target digest.Digest, actual []images.Image, names ...string) {
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	if len(names) != len(actual) {
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		t.Fatalf("expected %d images, got %d", len(names), len(actual))
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	}
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	for i, n := range names {
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		if actual[i].Target.Digest != target {
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			t.Fatalf("image(%d) unexpected target %s, expected %s", i, actual[i].Target.Digest, target)
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		}
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		if actual[i].Name != n {
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			t.Fatalf("image(%d) unexpected name %q, expected %q", i, actual[i].Name, n)
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		}
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		if actual[i].Target.MediaType != ocispec.MediaTypeImageManifest {
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			t.Fatalf("image(%d) unexpected media type: %s", i, actual[i].Target.MediaType)
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		}
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	}
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}
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func createContent(size int64, seed int64) ([]byte, digest.Digest) {
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	b, err := ioutil.ReadAll(io.LimitReader(rand.New(rand.NewSource(seed)), size))
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	if err != nil {
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		panic(err)
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	}
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	return b, digest.FromBytes(b)
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}
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func createConfig() ([]byte, digest.Digest) {
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	image := ocispec.Image{
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		OS:           "any",
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		Architecture: "any",
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		Author:       "test",
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	}
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	b, _ := json.Marshal(image)
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	return b, digest.FromBytes(b)
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}
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func createManifest(config []byte, layers [][]byte) ([]byte, digest.Digest, *ocispec.Manifest) {
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	manifest := ocispec.Manifest{
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		Versioned: specs.Versioned{
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			SchemaVersion: 2,
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		},
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		Config: ocispec.Descriptor{
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			MediaType: ocispec.MediaTypeImageConfig,
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			Digest:    digest.FromBytes(config),
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			Size:      int64(len(config)),
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			Annotations: map[string]string{
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				"ocispec": "manifest.config.descriptor",
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			},
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		},
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	}
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	for _, l := range layers {
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		manifest.Layers = append(manifest.Layers, ocispec.Descriptor{
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			MediaType: ocispec.MediaTypeImageLayer,
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			Digest:    digest.FromBytes(l),
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			Size:      int64(len(l)),
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			Annotations: map[string]string{
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				"ocispec": "manifest.layers.descriptor",
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			},
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		})
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	}
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	b, _ := json.Marshal(manifest)
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	return b, digest.FromBytes(b), &manifest
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}
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func createIndex(manifest []byte, tags ...string) []byte {
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	idx := ocispec.Index{
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		Versioned: specs.Versioned{
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			SchemaVersion: 2,
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		},
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	}
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	d := ocispec.Descriptor{
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		MediaType: ocispec.MediaTypeImageManifest,
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		Digest:    digest.FromBytes(manifest),
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		Size:      int64(len(manifest)),
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	}
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	if len(tags) == 0 {
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		idx.Manifests = append(idx.Manifests, d)
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	} else {
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		for _, t := range tags {
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			dt := d
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			dt.Annotations = map[string]string{
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				ocispec.AnnotationRefName: t,
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			}
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			idx.Manifests = append(idx.Manifests, dt)
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		}
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	}
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	b, _ := json.Marshal(idx)
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	return b
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}
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