check_once_cc_seq_fetch_NCs_begin
check_once_cc_seq_fetch_NCs_begin(context, &iterator, CC_NOERROR, "when there are no existing ccaches");
check_once_cc_seq_fetch_NCs_begin(context, &iterator, CC_NOERROR, "when at least one ccache already exists");
check_once_cc_seq_fetch_NCs_begin(context, NULL, CC_BAD_PARM, "NULL param"); // NULL iterator
cc_result check_once_cc_seq_fetch_NCs_begin(apiCB *context, ccache_cit **iterator, cc_result expected_err, const char *description);