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package fs
import (
"io/ioutil"
"os"
"testing"
_ "crypto/sha256"
"github.com/containerd/continuity/fs/fstest"
"github.com/pkg/errors"
)
// TODO: Create copy directory which requires privilege
// chown
// mknod
// setxattr fstest.SetXAttr("/home", "trusted.overlay.opaque", "y"),
func TestCopyDirectory(t *testing.T) {
apply := fstest.Apply(
fstest.CreateDir("/etc/", 0755),
fstest.CreateFile("/etc/hosts", []byte("localhost 127.0.0.1"), 0644),
fstest.Link("/etc/hosts", "/etc/hosts.allow"),
fstest.CreateDir("/usr/local/lib", 0755),
fstest.CreateFile("/usr/local/lib/libnothing.so", []byte{0x00, 0x00}, 0755),
fstest.Symlink("libnothing.so", "/usr/local/lib/libnothing.so.2"),
fstest.CreateDir("/home", 0755),
)
if err := testCopy(apply); err != nil {
t.Fatalf("Copy test failed: %+v", err)
}
}
// This test used to fail because link-no-nothing.txt would be copied first,
// then file operations in dst during the CopyDir would follow the symlink and
// fail.
func TestCopyDirectoryWithLocalSymlink(t *testing.T) {
apply := fstest.Apply(
fstest.CreateFile("nothing.txt", []byte{0x00, 0x00}, 0755),
fstest.Symlink("nothing.txt", "link-no-nothing.txt"),
)
if err := testCopy(apply); err != nil {
t.Fatalf("Copy test failed: %+v", err)
}
}
func testCopy(apply fstest.Applier) error {
t1, err := ioutil.TempDir("", "test-copy-src-")
if err != nil {
return errors.Wrap(err, "failed to create temporary directory")
}
defer os.RemoveAll(t1)
t2, err := ioutil.TempDir("", "test-copy-dst-")
if err != nil {
return errors.Wrap(err, "failed to create temporary directory")
}
defer os.RemoveAll(t2)
if err := apply.Apply(t1); err != nil {
return errors.Wrap(err, "failed to apply changes")
}
if err := CopyDir(t2, t1); err != nil {
return errors.Wrap(err, "failed to copy")
}
return fstest.CheckDirectoryEqual(t1, t2)
}
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