Move ErrorContains to an internal package.

Signed-off-by: Daniel Nephin <dnephin@docker.com>

builder/dockerfile/dispatchers_test.go

@@ -14,8 +14,8 @@ import (
 	"github.com/docker/docker/api/types/strslice"
 	"github.com/docker/docker/builder"
 	"github.com/docker/docker/builder/dockerfile/parser"
+	"github.com/docker/docker/internal/testutil"
 	"github.com/docker/docker/pkg/system"
-	"github.com/docker/docker/pkg/testutil"
 	"github.com/docker/go-connections/nat"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"

builder/dockerfile/internals_windows_test.go

@@ -6,7 +6,7 @@ import (
 	"fmt"
 	"testing"
 
-	"github.com/docker/docker/pkg/testutil"
+	"github.com/docker/docker/internal/testutil"
 	"github.com/stretchr/testify/assert"
 )
 

builder/remotecontext/remote_test.go

@@ -10,8 +10,8 @@ import (
 	"testing"
 
 	"github.com/docker/docker/builder"
+	"github.com/docker/docker/internal/testutil"
 	"github.com/docker/docker/pkg/archive"
-	"github.com/docker/docker/pkg/testutil"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 )

client/swarm_get_unlock_key_test.go

@@ -10,7 +10,7 @@ import (
 	"testing"
 
 	"github.com/docker/docker/api/types"
-	"github.com/docker/docker/pkg/testutil"
+	"github.com/docker/docker/internal/testutil"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 	"golang.org/x/net/context"

cmd/dockerd/daemon_test.go

@@ -4,7 +4,7 @@ import (
 	"testing"
 
 	"github.com/docker/docker/daemon/config"
-	"github.com/docker/docker/pkg/testutil"
+	"github.com/docker/docker/internal/testutil"
 	"github.com/gotestyourself/gotestyourself/fs"
 	"github.com/sirupsen/logrus"
 	"github.com/spf13/pflag"

daemon/config/config_test.go

@@ -8,8 +8,8 @@ import (
 	"testing"
 
 	"github.com/docker/docker/daemon/discovery"
+	"github.com/docker/docker/internal/testutil"
 	"github.com/docker/docker/opts"
-	"github.com/docker/docker/pkg/testutil"
 	"github.com/spf13/pflag"
 	"github.com/stretchr/testify/assert"
 )

daemon/delete_test.go

@@ -9,7 +9,7 @@ import (
 	"github.com/docker/docker/api/types"
 	containertypes "github.com/docker/docker/api/types/container"
 	"github.com/docker/docker/container"
-	"github.com/docker/docker/pkg/testutil"
+	"github.com/docker/docker/internal/testutil"
 	"github.com/stretchr/testify/require"
 )
 

distribution/pull_v2_test.go

@@ -10,7 +10,7 @@ import (
 
 	"github.com/docker/distribution/manifest/schema1"
 	"github.com/docker/distribution/reference"
-	"github.com/docker/docker/pkg/testutil"
+	"github.com/docker/docker/internal/testutil"
 	"github.com/opencontainers/go-digest"
 )
 

image/fs_test.go

@@ -11,7 +11,7 @@ import (
 	"path/filepath"
 	"testing"
 
-	"github.com/docker/docker/pkg/testutil"
+	"github.com/docker/docker/internal/testutil"
 	"github.com/opencontainers/go-digest"
 	"github.com/stretchr/testify/assert"
 )

image/store_test.go

@@ -4,8 +4,8 @@ import (
 	"runtime"
 	"testing"
 
+	"github.com/docker/docker/internal/testutil"
 	"github.com/docker/docker/layer"
-	"github.com/docker/docker/pkg/testutil"
 	"github.com/opencontainers/go-digest"
 	"github.com/stretchr/testify/assert"
 )

integration/container/create_test.go

@@ -8,7 +8,7 @@ import (
 	"github.com/docker/docker/api/types/container"
 	"github.com/docker/docker/api/types/network"
 	"github.com/docker/docker/integration/util/request"
-	"github.com/docker/docker/pkg/testutil"
+	"github.com/docker/docker/internal/testutil"
 )
 
 func TestCreateFailsWhenIdentifierDoesNotExist(t *testing.T) {