cnvlist_take_number
ATF_ADD_TEST_CASE(tp, cnvlist_take_number);
ATF_TEST_CASE_WITHOUT_HEAD(cnvlist_take_number);
ATF_TEST_CASE_BODY(cnvlist_take_number)
ATF_REQUIRE_EQ(cnvlist_take_number(cookie), value);
uint64_t cnvlist_take_number(void *cookie);