filter_provider_set_filter
int filter_provider_set_filter(int operation, const char *name);
if (!TEST_true(filter_provider_set_filter(OSSL_OP_DIGEST,
if (!TEST_true(filter_provider_set_filter(OSSL_OP_SIGNATURE,
|| !TEST_true(filter_provider_set_filter(OSSL_OP_KEYMGMT, "EC"))
|| !TEST_true(filter_provider_set_filter(OSSL_OP_KEYMGMT,