Function TestMultiWriteSameImage

pkg/legacy/tarball/write_test.go:91–152

(t *testing.T)

}

func TestMultiWriteSameImage(t *testing.T) {
	// Make a tempfile for tarball writes.
	fp, err := os.CreateTemp("", "")
	if err != nil {
		t.Fatalf("Error creating temp file.")
	}
	t.Log(fp.Name())
	defer fp.Close()
	defer os.Remove(fp.Name())

	// Make a random image
	randImage, err := random.Image(256, 8)
	if err != nil {
		t.Fatalf("Error creating random image.")
	}

	// Make two tags that point to the random image above.
	tag1, err := name.NewTag("gcr.io/foo/bar:latest", name.StrictValidation)
	if err != nil {
		t.Fatalf("Error creating test tag1.")
	}
	tag2, err := name.NewTag("gcr.io/baz/bat:latest", name.StrictValidation)
	if err != nil {
		t.Fatalf("Error creating test tag2.")
	}
	dig3, err := name.NewDigest("gcr.io/baz/baz@sha256:e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855", name.StrictValidation)
	if err != nil {
		t.Fatalf("Error creating test dig3.")
	}
	refToImage := make(map[name.Reference]v1.Image)
	refToImage[tag1] = randImage
	refToImage[tag2] = randImage
	refToImage[dig3] = randImage

	o, err := os.Create(fp.Name())
	if err != nil {
		t.Fatalf("Error creating %q to write image tarball: %v", fp.Name(), err)
	}
	defer o.Close()

	// Write the images with both tags to the tarball
	if err := MultiWrite(refToImage, o); err != nil {
		t.Fatalf("Unexpected error writing tarball: %v", err)
	}
	for ref := range refToImage {
		tag, ok := ref.(name.Tag)
		if !ok {
			continue
		}

		tarImage, err := tarball.ImageFromPath(fp.Name(), &tag)
		if err != nil {
			t.Fatalf("Unexpected error reading tarball: %v", err)
		}
		if err := validate.Image(tarImage); err != nil {
			t.Errorf("validate.Image: %v", err)
		}
		if err := compare.Images(randImage, tarImage); err != nil {