diff --git a/contrib/token-server/token_test.go b/contrib/token-server/token_test.go
new file mode 100644
index 00000000..cd9ea30d
--- /dev/null
+++ b/contrib/token-server/token_test.go
@@ -0,0 +1,80 @@
+package main
+
+import (
+	"crypto/rand"
+	"crypto/rsa"
+	"encoding/base64"
+	"errors"
+	"testing"
+	"time"
+
+	"strings"
+
+	"github.com/docker/distribution/registry/auth"
+	"github.com/docker/libtrust"
+)
+
+func TestCreateJWTSuccessWithEmptyACL(t *testing.T) {
+	key, err := rsa.GenerateKey(rand.Reader, 1024)
+	if err != nil {
+		t.Fatal(err)
+	}
+	pk, err := libtrust.FromCryptoPrivateKey(key)
+	if err != nil {
+		t.Fatal(err)
+	}
+	tokenIssuer := TokenIssuer{
+		Expiration: time.Duration(100),
+		Issuer:     "localhost",
+		SigningKey: pk,
+	}
+
+	grantedAccessList := make([]auth.Access, 0)
+	token, err := tokenIssuer.CreateJWT("test", "test", grantedAccessList)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	tokens := strings.Split(token, ".")
+
+	if len(token) == 0 {
+		t.Fatal("token not generated.")
+	}
+
+	json, err := decodeJWT(tokens[1])
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if !strings.Contains(json, "test") {
+		t.Fatal("Valid token was not generated.")
+	}
+
+}
+
+func decodeJWT(rawToken string) (string, error) {
+	data, err := joseBase64Decode(rawToken)
+	if err != nil {
+		return "", errors.New("Error in Decoding base64 String")
+	}
+	return data, nil
+}
+
+func joseBase64Decode(s string) (string, error) {
+	switch len(s) % 4 {
+	case 0:
+	case 2:
+		s += "=="
+	case 3:
+		s += "="
+	default:
+		{
+			return "", errors.New("Invalid base64 String")
+		}
+	}
+	data, err := base64.StdEncoding.DecodeString(s)
+	if err != nil {
+		return "", err //errors.New("Error in Decoding base64 String")
+	}
+	return string(data), nil
+}
diff --git a/notifications/http_test.go b/notifications/http_test.go
index b7845cf9..5bf5d5d6 100644
--- a/notifications/http_test.go
+++ b/notifications/http_test.go
@@ -70,7 +70,7 @@ func TestHTTPSink(t *testing.T) {
 	// first make sure that the default transport gives x509 untrusted cert error
 	events := []Event{}
 	err := sink.Write(events...)
-	if !strings.Contains(err.Error(), "x509") {
+	if !strings.Contains(err.Error(), "x509") && !strings.Contains(err.Error(), "unknown ca") {
 		t.Fatal("TLS server with default transport should give unknown CA error")
 	}
 	if err := sink.Close(); err != nil {
diff --git a/registry/storage/driver/middleware/cloudfront/middleware_test.go b/registry/storage/driver/middleware/cloudfront/middleware_test.go
new file mode 100644
index 00000000..cbc7bc44
--- /dev/null
+++ b/registry/storage/driver/middleware/cloudfront/middleware_test.go
@@ -0,0 +1,60 @@
+package middleware
+
+import (
+	"io/ioutil"
+	"os"
+	"testing"
+
+	"gopkg.in/check.v1"
+)
+
+func Test(t *testing.T) { check.TestingT(t) }
+
+type MiddlewareSuite struct{}
+
+var _ = check.Suite(&MiddlewareSuite{})
+
+func (s *MiddlewareSuite) TestNoConfig(c *check.C) {
+	options := make(map[string]interface{})
+	_, err := newCloudFrontStorageMiddleware(nil, options)
+	c.Assert(err, check.ErrorMatches, "no baseurl provided")
+}
+
+func TestCloudFrontStorageMiddlewareGenerateKey(t *testing.T) {
+
+	options := make(map[string]interface{})
+	options["baseurl"] = "example.com"
+
+	var privk = `-----BEGIN RSA PRIVATE KEY-----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+-----END RSA PRIVATE KEY-----
+`
+
+	file, err := ioutil.TempFile("", "pkey")
+	if err != nil {
+		t.Fatal("File cannot be created")
+	}
+	file.WriteString(privk)
+	defer os.Remove(file.Name())
+	options["privatekey"] = file.Name()
+	options["keypairid"] = "test"
+	storageDriver, err := newCloudFrontStorageMiddleware(nil, options)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if storageDriver == nil {
+		t.Fatal("Driver couldnt be initialized.")
+	}
+}
diff --git a/registry/storage/driver/testsuites/testsuites.go b/registry/storage/driver/testsuites/testsuites.go
index 7cf7b379..99c54078 100644
--- a/registry/storage/driver/testsuites/testsuites.go
+++ b/registry/storage/driver/testsuites/testsuites.go
@@ -3,7 +3,7 @@ package testsuites
 import (
 	"bytes"
 	"context"
-	"crypto/sha1"
+	"crypto/sha256"
 	"io"
 	"io/ioutil"
 	"math/rand"
@@ -278,7 +278,7 @@ func (suite *DriverSuite) TestWriteReadLargeStreams(c *check.C) {
 	filename := randomPath(32)
 	defer suite.deletePath(c, firstPart(filename))
 
-	checksum := sha1.New()
+	checksum := sha256.New()
 	var fileSize int64 = 5 * 1024 * 1024 * 1024
 
 	contents := newRandReader(fileSize)
@@ -298,7 +298,7 @@ func (suite *DriverSuite) TestWriteReadLargeStreams(c *check.C) {
 	c.Assert(err, check.IsNil)
 	defer reader.Close()
 
-	writtenChecksum := sha1.New()
+	writtenChecksum := sha256.New()
 	io.Copy(writtenChecksum, reader)
 
 	c.Assert(writtenChecksum.Sum(nil), check.DeepEquals, checksum.Sum(nil))