}

  public void testSha512() {
    HashTestUtils.checkAvalanche(Hashing.sha512(), 100, 0.4);
    HashTestUtils.checkNo2BitCharacteristics(Hashing.sha512());
    HashTestUtils.checkNoFunnels(Hashing.sha512());
    HashTestUtils.assertInvariants(Hashing.sha512());
    assertEquals("Hashing.sha512()", Hashing.sha512().toString());
  }

  public void testCrc32() {
    HashTestUtils.assertInvariants(Hashing.crc32());

  }

  public void testSha512() {
    HashTestUtils.checkAvalanche(Hashing.sha512(), 100, 0.4);
    HashTestUtils.checkNo2BitCharacteristics(Hashing.sha512());
    HashTestUtils.checkNoFunnels(Hashing.sha512());
    HashTestUtils.assertInvariants(Hashing.sha512());
    assertEquals("Hashing.sha512()", Hashing.sha512().toString());
  }

  public void testCrc32() {
    HashTestUtils.assertInvariants(Hashing.crc32());

          .put("HmacMD5", MD5_KEY, Hashing.hmacMd5(MD5_KEY))
          .put("HmacSHA1", SHA1_KEY, Hashing.hmacSha1(SHA1_KEY))
          .put("HmacSHA256", SHA256_KEY, Hashing.hmacSha256(SHA256_KEY))
          .put("HmacSHA512", SHA512_KEY, Hashing.hmacSha512(SHA512_KEY))
          .build();

  public void testNulls() {
    NullPointerTester tester =

const (
	kexAlgoDH1SHA1                = "diffie-hellman-group1-sha1"
	kexAlgoDH14SHA1               = "diffie-hellman-group14-sha1"
	kexAlgoDH14SHA256             = "diffie-hellman-group14-sha256"
	kexAlgoDH16SHA512             = "diffie-hellman-group16-sha512"
	kexAlgoECDH256                = "ecdh-sha2-nistp256"
	kexAlgoECDH384                = "ecdh-sha2-nistp384"
	kexAlgoECDH521                = "ecdh-sha2-nistp521"

          .put("HmacMD5", MD5_KEY, Hashing.hmacMd5(MD5_KEY))
          .put("HmacSHA1", SHA1_KEY, Hashing.hmacSha1(SHA1_KEY))
          .put("HmacSHA256", SHA256_KEY, Hashing.hmacSha256(SHA256_KEY))
          .put("HmacSHA512", SHA512_KEY, Hashing.hmacSha512(SHA512_KEY))
          .build();

  public void testNulls() {
    NullPointerTester tester =

   * specific length.
   *
   * <p>For example, if you need 1024-bit hash codes, you could join two {@link Hashing#sha512} hash
   * functions together: {@code Hashing.concatenating(Hashing.sha512(), Hashing.sha512())}.
   *
   * @since 19.0
   */
  public static HashFunction concatenating(
      HashFunction first, HashFunction second, HashFunction... rest) {

        "sha256/a",
      )
    }
  }

  @Test
  fun testBadAlgorithm() {
    assertFailsWith<IllegalArgumentException> {
      CertificatePinner.Pin(
        "example.co.uk",
        "sha512/AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=",
      )
    }
  }

  @Test
  fun testBadHost() {
    assertFailsWith<IllegalArgumentException> {
      CertificatePinner.Pin(
        "example.*",

			buf := make([]byte, base64BufferSize)
			return &buf
		},
	}

	hmacSigners = []*SigningMethodHMAC{
		{Name: "HS256", Hash: crypto.SHA256},
		{Name: "HS384", Hash: crypto.SHA384},
		{Name: "HS512", Hash: crypto.SHA512},
	}
	for i := range hmacSigners {
		h := hmacSigners[i].Hash
		hmacSigners[i].HasherPool.New = func() interface{} {
			return h.New()
		}
	}
}

	SCVTFD R13, F9                                              // a901629e
	SHA1C V8.S4, V8, V2                                         // 0201085e
	SHA1H V17, V25                                              // 390a285e
	SHA1M V0.S4, V27, V27                                       // 7b23005e
	SHA1P V3.S4, V20, V27                                       // 9b12035e

      var sha1: ByteString? = null
      var sha256: ByteString? = null

      for (pin in pins) {
        when (pin.hashAlgorithm) {
          "sha256" -> {
            if (sha256 == null) sha256 = peerCertificate.sha256Hash()
            if (pin.hash == sha256) return // Success!
          }
          "sha1" -> {
            if (sha1 == null) sha1 = peerCertificate.sha1Hash()