update vendor

Signed-off-by: Jess Frazelle <acidburn@microsoft.com>

vendor/github.com/genuinetools/reg/testutils/registry.go

@@ -0,0 +1,50 @@
+package testutils
+
+import (
+	"context"
+	"os"
+
+	"github.com/docker/docker/api/types"
+	"github.com/docker/docker/client"
+	"github.com/docker/docker/pkg/jsonmessage"
+	"github.com/docker/docker/pkg/term"
+)
+
+// RegistryHelper implements methods to manipulate docker registry from test cases
+type RegistryHelper struct {
+	dcli *client.Client
+	auth string
+	addr string
+}
+
+// NewRegistryHelper returns RegistryHelper
+func NewRegistryHelper(dcli *client.Client, username, password, addr string) (*RegistryHelper, error) {
+	auth, err := constructRegistryAuth(username, password)
+	if err != nil {
+		return nil, err
+	}
+	return &RegistryHelper{dcli: dcli, auth: auth, addr: addr}, nil
+}
+
+// RefillRegistry adds images to a registry.
+func (r *RegistryHelper) RefillRegistry(image string) error {
+	if err := pullDockerImage(r.dcli, image); err != nil {
+		return err
+	}
+
+	if err := r.dcli.ImageTag(context.Background(), image, r.addr+"/"+image); err != nil {
+		return err
+	}
+
+	resp, err := r.dcli.ImagePush(context.Background(), r.addr+"/"+image, types.ImagePushOptions{
+		RegistryAuth: r.auth,
+	})
+	if err != nil {
+		return err
+	}
+	defer resp.Close()
+
+	fd, isTerm := term.GetFdInfo(os.Stdout)
+
+	return jsonmessage.DisplayJSONMessagesStream(resp, os.Stdout, fd, isTerm, nil)
+}