restic: extract Node filesystem code to fs package

internal/fs/node_xattr_test.go

@@ -0,0 +1,28 @@
+//go:build darwin || freebsd || linux || solaris
+// +build darwin freebsd linux solaris
+
+package fs
+
+import (
+	"os"
+	"testing"
+
+	"github.com/pkg/xattr"
+	rtest "github.com/restic/restic/internal/test"
+)
+
+func TestIsListxattrPermissionError(t *testing.T) {
+	xerr := &xattr.Error{
+		Op:   "xattr.list",
+		Name: "test",
+		Err:  os.ErrPermission,
+	}
+	err := handleXattrErr(xerr)
+	rtest.Assert(t, err != nil, "missing error")
+	rtest.Assert(t, IsListxattrPermissionError(err), "expected IsListxattrPermissionError to return true for %v", err)
+
+	xerr.Err = os.ErrNotExist
+	err = handleXattrErr(xerr)
+	rtest.Assert(t, err != nil, "missing error")
+	rtest.Assert(t, !IsListxattrPermissionError(err), "expected IsListxattrPermissionError to return false for %v", err)
+}