Spec rb_gc_register_mark_object

Author: chrisseaton

spec/ruby/optional/capi/ext/gc_spec.c

@@ -34,6 +34,11 @@ static VALUE gc_spec_rb_gc_adjust_memory_usage(VALUE self, VALUE diff) {
   return Qnil;
 }
 
+static VALUE gc_spec_rb_gc_register_mark_object(VALUE self, VALUE obj) {
+  rb_gc_register_mark_object(obj);
+  return Qnil;
+}
+
 void Init_gc_spec(void) {
   VALUE cls = rb_define_class("CApiGCSpecs", rb_cObject);
   registered_tagged_value    = INT2NUM(10);
@@ -48,6 +53,7 @@ void Init_gc_spec(void) {
   rb_define_method(cls, "rb_gc_disable", gc_spec_rb_gc_disable, 0);
   rb_define_method(cls, "rb_gc", gc_spec_rb_gc, 0);
   rb_define_method(cls, "rb_gc_adjust_memory_usage", gc_spec_rb_gc_adjust_memory_usage, 1);
+  rb_define_method(cls, "rb_gc_register_mark_object", gc_spec_rb_gc_register_mark_object, 1);
 }
 
 #ifdef __cplusplus

spec/ruby/optional/capi/gc_spec.rb

@@ -58,4 +58,10 @@
       }.should_not raise_error
     end
   end
+
+  describe "rb_gc_register_mark_object" do
+    it "can be called with an object" do
+      @f.rb_gc_register_mark_object(Object.new).should be_nil
+    end
+  end
 end