@@ -6,6 +6,7 @@ import (

 	"io/ioutil"

 	"os"

 	"os/exec"

+	"path"

 	"path/filepath"

 	"testing"

 )

@@ -57,7 +58,7 @@ func TestCpGarbagePath(t *testing.T) {

 	tmpname := filepath.Join(tmpdir, cpTestName)

 	defer os.RemoveAll(tmpdir)

-	path := filepath.Join("../../../../../../../../../../../../", cpFullPath)

+	path := path.Join("../../../../../../../../../../../../", cpFullPath)

 	_, _, err = dockerCmd(t, "cp", cleanedContainerID+":"+path, tmpdir)

 	if err != nil {

@@ -120,11 +121,18 @@ func TestCpRelativePath(t *testing.T) {

 	tmpname := filepath.Join(tmpdir, cpTestName)

 	defer os.RemoveAll(tmpdir)

-	path, _ := filepath.Rel("/", cpFullPath)

+	var relPath string

+	if path.IsAbs(cpFullPath) {

+		// normally this is `filepath.Rel("/", cpFullPath)` but we cannot

+		// get this unix-path manipulation on windows with filepath.

+		relPath = cpFullPath[1:]

+	} else {

+		t.Fatalf("path %s was assumed to be an absolute path", cpFullPath)

+	}

-	_, _, err = dockerCmd(t, "cp", cleanedContainerID+":"+path, tmpdir)

+	_, _, err = dockerCmd(t, "cp", cleanedContainerID+":"+relPath, tmpdir)

 	if err != nil {

-		t.Fatalf("couldn't copy from relative path: %s:%s %s", cleanedContainerID, path, err)

+		t.Fatalf("couldn't copy from relative path: %s:%s %s", cleanedContainerID, relPath, err)

 	}

 	file, _ := os.Open(tmpname)

@@ -247,7 +255,7 @@ func TestCpAbsoluteSymlink(t *testing.T) {

 	tmpname := filepath.Join(tmpdir, cpTestName)

 	defer os.RemoveAll(tmpdir)

-	path := filepath.Join("/", "container_path")

+	path := path.Join("/", "container_path")

 	_, _, err = dockerCmd(t, "cp", cleanedContainerID+":"+path, tmpdir)

 	if err != nil {

@@ -311,7 +319,7 @@ func TestCpSymlinkComponent(t *testing.T) {

 	tmpname := filepath.Join(tmpdir, cpTestName)

 	defer os.RemoveAll(tmpdir)

-	path := filepath.Join("/", "container_path", cpTestName)

+	path := path.Join("/", "container_path", cpTestName)

 	_, _, err = dockerCmd(t, "cp", cleanedContainerID+":"+path, tmpdir)

 	if err != nil {