Add specs for methods in C taking variable arguments.

Author: aardvark179

spec/ruby/optional/capi/class_spec.rb

@@ -109,6 +109,16 @@
     end
   end
 
+  describe "rb_define_method" do
+    it "defines a method taking variable arguments as a C array if the argument count is -1" do
+      @s.rb_method_varargs_1(1, 3, 7, 4).should == [1, 3, 7, 4]
+    end
+
+    it "defines a method taking variable arguments as a Ruby array if the argument count is -2" do
+      @s.rb_method_varargs_2(1, 3, 7, 4).should == [1, 3, 7, 4]
+    end
+  end
+
   describe "rb_class2name" do
     it "returns the class name" do
       @s.rb_class2name(CApiClassSpecs).should == "CApiClassSpecs"

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

@@ -167,6 +167,19 @@ static VALUE class_spec_include_module(VALUE self, VALUE klass, VALUE module) {
 }
 #endif
 
+static VALUE class_spec_method_var_args_1(int argc, VALUE *argv, VALUE self) {
+  VALUE ary = rb_ary_new();
+  int i;
+  for (i = 0; i < argc; i++) {
+    rb_ary_push(ary, argv[i]);
+  }
+  return ary;
+}
+
+static VALUE class_spec_method_var_args_2(VALUE self, VALUE argv) {
+  return argv;
+}
+
 void Init_class_spec(void) {
   VALUE cls;
   cls = rb_define_class("CApiClassSpecs", rb_cObject);
@@ -254,6 +267,9 @@ void Init_class_spec(void) {
 #ifdef HAVE_RB_INCLUDE_MODULE
   rb_define_method(cls, "rb_include_module", class_spec_include_module, 2);
 #endif
+
+  rb_define_method(cls, "rb_method_varargs_1", class_spec_method_var_args_1, -1);
+  rb_define_method(cls, "rb_method_varargs_2", class_spec_method_var_args_2, -2);
 }
 
 #ifdef __cplusplus