@Test
  public void createSenderAndRecipientContexts_succeedsWithX25519HkdfSha256Aes128Gcm()
      throws GeneralSecurityException {
    testSenderAndRecipientContexts(
        HpkeUtil.BASE_MODE,
        HpkeUtil.X25519_HKDF_SHA256_KEM_ID,
        HpkeUtil.HKDF_SHA256_KDF_ID,
        HpkeUtil.AES_128_GCM_AEAD_ID,
        HpkeParameters.KemId.DHKEM_X25519_HKDF_SHA256);
  }
Helper method to verify context API provided to Tink users.
java_src/src/test/java/com/google/crypto/tink/hybrid/internal/HpkeContextTest.java