1 files changed, 19 insertions, 0 deletions
diff --git a/ext/-test-/postponed_job/postponed_job.c b/ext/-test-/postponed_job/postponed_job.c
index ac1bf80890..157230e33b 100644
--- a/ext/-test-/postponed_job/postponed_job.c
+++ b/ext/-test-/postponed_job/postponed_job.c
@@ -17,6 +17,24 @@ pjob_register(VALUE self, VALUE obj)
     return self;
 }
 
+static void
+pjob_one_callback(void *data)
+{
+    VALUE ary = (VALUE)data;
+    Check_Type(ary, T_ARRAY);
+
+    rb_ary_push(ary, INT2FIX(1));
+}
+
+static VALUE
+pjob_register_one(VALUE self, VALUE obj)
+{
+    rb_postponed_job_register_one(0, pjob_one_callback, (void *)obj);
+    rb_postponed_job_register_one(0, pjob_one_callback, (void *)obj);
+    rb_postponed_job_register_one(0, pjob_one_callback, (void *)obj);
+    return self;
+}
+
 static VALUE
 pjob_call_direct(VALUE self, VALUE obj)
 {
@@ -29,6 +47,7 @@ Init_postponed_job(VALUE self)
 {
     VALUE mBug = rb_define_module("Bug");
     rb_define_module_function(mBug, "postponed_job_register", pjob_register, 1);
+    rb_define_module_function(mBug, "postponed_job_register_one", pjob_register_one, 1);
     rb_define_module_function(mBug, "postponed_job_call_direct", pjob_call_direct, 1);
 }