[FAB-9403] Replace docker/docker/pkg/testutil/assert

Not sure why, but a few test files were using the docker
testutil/assert package instead of using the
testify/assert package.

Once the test file changes were made, updated the
dependencies as well

Change-Id: Ic40773a71843af9124524235b24c1a394a4e4f0a
Signed-off-by: Gari Singh <[email protected]>

Gopkg.toml

@@ -30,10 +30,6 @@ ignored = [
   name = "github.com/davecgh/go-spew"
   version = "1.1.0"
 
-[[constraint]]
-  name = "github.com/docker/docker"
-  version = "1.13.1"
-
 [[constraint]]
   name = "github.com/fsouza/go-dockerclient"
   version = "docker-1.9/go-1.4"

core/common/validation/resourceupdate_test.go

@@ -9,12 +9,12 @@ package validation
 import (
 	"testing"
 
-	"github.com/docker/docker/pkg/testutil/assert"
 	"github.com/hyperledger/fabric/common/mocks/config"
 	"github.com/hyperledger/fabric/common/util"
 	cb "github.com/hyperledger/fabric/protos/common"
 	"github.com/hyperledger/fabric/protos/peer"
 	"github.com/hyperledger/fabric/protos/utils"
+	"github.com/stretchr/testify/assert"
 )
 
 func TestValidateResourceUpdateTx(t *testing.T) {

core/handlers/decoration/decorator/decorator_test.go

@@ -9,8 +9,8 @@ package decorator
 import (
 	"testing"
 
-	"github.com/docker/docker/pkg/testutil/assert"
 	"github.com/hyperledger/fabric/protos/peer"
+	"github.com/stretchr/testify/assert"
 )
 
 func TestDecorator(t *testing.T) {

core/handlers/decoration/plugin/decorator_test.go

@@ -9,8 +9,8 @@ package main
 import (
 	"testing"
 
-	"github.com/docker/docker/pkg/testutil/assert"
 	"github.com/hyperledger/fabric/protos/peer"
+	"github.com/stretchr/testify/assert"
 )
 
 func TestDecorator(t *testing.T) {