.

go/internal/xtesting/xtesting.go

@@ -102,7 +102,7 @@ type ZRawObject struct { // keep in sync with zodb(test).ZRawObject
 
 // ZPyCommitRaw commits new transaction into database @ zurl with raw data specified by objv.
 //
-// Empty data means "delete object".
+// Nil data means "delete object".
 // The commit is performed via zodbtools/py.
 func ZPyCommitRaw(zurl string, at zodb.Tid, objv ...ZRawObject) (_ zodb.Tid, err error) {
 	defer xerr.Contextf(&err, "%s: zpycommit @%s", zurl, at)
@@ -114,7 +114,7 @@ func ZPyCommitRaw(zurl string, at zodb.Tid, objv ...ZRawObject) (_ zodb.Tid, err
 	fmt.Fprintf(zin, "extension %q\n", "")
 	for _, obj := range objv {
 		// !data -> delete
-		if len(obj.Data) == 0 {
+		if obj.Data == nil {
 			fmt.Fprintf(zin, "obj %s delete\n", obj.Oid)
 		} else {
 			fmt.Fprintf(zin, "obj %s %d null:00\n", obj.Oid, len(obj.Data))