UUID uuid = new UUID(rpcUuid);

            // Act
            String result = uuid.toString();

            // Assert
            assertEquals(VALID_UUID_STRING, result.toUpperCase(), "toString() should return the correct UUID string in uppercase");
        }

        @Test
        @DisplayName("toString() should work correctly for UUID created from string")
        void testToStringFromConstructorWithString() {

    assertEquals(knownOutput, HashCode.fromBytes(mac.doFinal()).toString());
    assertEquals(knownOutput, HashCode.fromBytes(mac.doFinal(input.getBytes(UTF_8))).toString());
    assertEquals(knownOutput, Hashing.hmacMd5(MD5_KEY).hashString(input, UTF_8).toString());
    assertEquals(knownOutput, Hashing.hmacMd5(MD5_KEY).hashBytes(input.getBytes(UTF_8)).toString());
  }

  public void testKnownInputs_mixedAlgorithms() throws Exception {

        .testEquals();

    assertEquals(hashFunction1a.toString(), hashFunction1b.toString());
    assertEquals(hashFunction2a.toString(), hashFunction2b.toString());
    assertEquals(hashFunction3a.toString(), hashFunction3b.toString());
    assertEquals(hashFunction4a.toString(), hashFunction4b.toString());
  }

  static void assertSeedlessHashFunctionEquals(Class<?> clazz) throws Exception {

        // toString should include the class name and (if non-null) the message
        String ts = ex.toString();
        assertTrue(ts.contains("SMBProtocolDecodingException"), "toString should include class name");
        if (message != null && !message.isEmpty()) {
            assertTrue(ts.contains(message), "toString should include non-empty message");
        }
    }

    @Test

                Arguments.of(new byte[] { (byte) 0x7F, (byte) 0x80, (byte) 0xFF }, "7f80ff"));
    }

    // Verifies that toString() formats bytes as lower-case hex with zero-padding
    @ParameterizedTest(name = "toString renders hex for {0}")
    @MethodSource("hexCases")
    @DisplayName("toString() renders lower-case hex with zero-padding")
    void toString_rendersHex(byte[] input, String expected) {
        // Arrange

    HashCode hash2 = HashCode.fromString(hash1.toString());
    assertEquals(hash1, hash2);
  }

  public void testRoundTrip() {
    for (ExpectedHashCode expected : expectedHashCodes) {
      String string = HashCode.fromBytes(expected.bytes).toString();
      assertEquals(expected.toString, string);
      assertEquals(
          expected.toString,

        assertTrue(result.startsWith(PROTO + ":" + SERVER + "[null,"), "toString should start correctly.");
        assertTrue(result.contains("connect=80"), "toString should contain connect option.");
        assertTrue(result.contains("bind=123"), "toString should contain bind option.");
    }

    @Test
    void testToStringWithEndpointAndOptions() throws DcerpcException {
        String endpoint = "\\pipe\\srvsvc";

        String infoString = info.toString();
        assertTrue(infoString.contains("alloc=1000"), "toString should contain alloc");
        assertTrue(infoString.contains("free=500"), "toString should contain free");
        assertTrue(infoString.contains("sectPerAlloc=100"), "toString should contain sectPerAlloc");
        assertTrue(infoString.contains("bytesPerSect=512"), "toString should contain bytesPerSect");
    }

        PrunedTag tag = tags[0];
        assertEquals("div", tag.toString().split(", ")[0].split("=")[1]);
        assertTrue(tag.toString().contains("id=main-modal"));
        assertTrue(tag.toString().contains("css=modal"));
        assertTrue(tag.toString().contains("attrName=data-toggle"));
        assertTrue(tag.toString().contains("attrValue=modal"));

        // Test multiple tags with different combinations

  private final int bits;
  private final String toString;

  ChecksumHashFunction(
      ImmutableSupplier<? extends Checksum> checksumSupplier, int bits, String toString) {
    this.checksumSupplier = checkNotNull(checksumSupplier);
    checkArgument(bits == 32 || bits == 64, "bits (%s) must be either 32 or 64", bits);
    this.bits = bits;
    this.toString = checkNotNull(toString);
  }

  @Override
  public int bits() {