OSSL_HPKE_CTX_set1_authpriv
int OSSL_HPKE_CTX_set1_authpriv(OSSL_HPKE_CTX *ctx, EVP_PKEY *priv);
if (!TEST_true(OSSL_HPKE_CTX_set1_authpriv(ctx,
if (!TEST_true(OSSL_HPKE_CTX_set1_authpriv(sealctx, authpriv)))
if (!TEST_false(OSSL_HPKE_CTX_set1_authpriv(NULL, privp)))
if (!TEST_false(OSSL_HPKE_CTX_set1_authpriv(ctx, NULL)))
if (!TEST_false(OSSL_HPKE_CTX_set1_authpriv(ctx, privp)))
if (!TEST_true(OSSL_HPKE_CTX_set1_authpriv(ctx, authpriv)))