package main

// extern void registerDestructor();
import "C"

import "fmt"

func init() {
	register("DestructorCallback", DestructorCallback)
}

//export GoDestructorCallback
func GoDestructorCallback() {
}

func DestructorCallback() {
	C.registerDestructor()
	fmt.Println("OK")

	if want := "OK\n"; got != want {
		t.Fatalf("expected %q, but got:\n%s", want, got)
	}
}

func TestDestructorCallback(t *testing.T) {
	t.Parallel()
	got := runTestProg(t, "testprogcgo", "DestructorCallback")
	if want := "OK\n"; got != want {
		t.Errorf("expected %q, but got:\n%s", want, got)
	}
}

func TestDestructorCallbackRace(t *testing.T) {
	// This test requires building with -race,