hmac.engineUpdate(TEST_DATA, 0, TEST_DATA.length);
        byte[] result2 = hmac.engineDigest();

        // Should produce the same result
        assertArrayEquals(result1, result2);
    }

    @Test
    void testDifferentKeysProduceDifferentResults() {
        // Test that different keys produce different results
        byte[] key1 = "key1".getBytes();
        byte[] key2 = "key2".getBytes();

        byte[] signingKey2 = Smb3KeyDerivation.deriveSigningKey(dialect, sessionKey, preauthIntegrity);

        // Then - should produce identical results
        assertArrayEquals(signingKey1, signingKey2, "Same input should produce same output");
    }

    @Test
    @DisplayName("Should handle empty session key")
    void testDeriveKeys_EmptySessionKey() {
        // Given

        // Assert
        assertArrayEquals(expected, actual, "NT hash must match known test vector");
    }

    @Test
    @DisplayName("getNTHash: verify different passwords produce different hashes")
    void testGetNTHash_differentPasswords() {
        // Arrange
        String password1 = "password";
        String password2 = "Password";

        // Act

            if (input == null || input.isEmpty()) {
                assertEquals(0, result.length, "Null or empty input should produce empty array");
            } else {
                assertTrue(result.length > 0, "Non-empty input should produce non-empty array");
            }
        }
    }

    @Nested
    @DisplayName("Unicode and ASCII Encoding")
    class UnicodeAndASCIITests {

                defaultReadingConverter, defaultReadingConverter, defaultNormalizer, analyzer);

        // Empty string should produce empty or no items
        assertTrue("Empty content should not produce items", items.size() == 0);
    }

    @Test
    public void test_parseDocument_whitespaceOnlyContent() throws Exception {
        Map<String, Object> document = new HashMap<>();

        SuggestItem item2 = new SuggestItem(text2, readings2, null, 0L, 0L, 1.0f, null, null, null, SuggestItem.Kind.QUERY);

        // Different word order should produce different IDs (since text is "word1 word2" vs "word2 word1")
        assertFalse("Different word order should produce different IDs", item1.getId().equals(item2.getId()));
    }

        assertNotNull(result);
        assertTrue("Empty query should produce MatchAllQuery", result instanceof MatchAllQueryBuilder);
    }

    @Test
    public void test_buildQuery_nullQuery() {
        QueryBuilder result = request.buildQuery(null, Collections.emptyList());
        assertNotNull(result);
        assertTrue("Null query should produce MatchAllQuery", result instanceof MatchAllQueryBuilder);
    }

    @Test

  }

  public Runnable getTearDown() {
    return tearDown;
  }

  // Features

  private final Set<Feature<?>> features = new LinkedHashSet<>();

  /**
   * Configures this builder to produce tests appropriate for the given features. This method may be
   * called more than once to add features in multiple groups.
   */
  @CanIgnoreReturnValue
  public B withFeatures(Feature<?>... features) {

        // Note: Serialized bytes may not be identical due to metadata,
        // but deserialization should produce the same result
        Object deserialized1 = serializer.fromBinaryToObject(serialized1);
        Object deserialized2 = serializer.fromBinaryToObject(serialized2);

        assertEquals("Multiple deserializations should produce identical results", deserialized1, deserialized2);
    }

    /**

   * stream.collect(ImmutableListMultimap.toImmutableListMultimap(keyFunction, v -> v))}.
   *
   * @param keyFunction the function used to produce the key for each value
   * @throws NullPointerException if any element of this iterable is {@code null}, or if {@code
   *     keyFunction} produces {@code null} for any key
   * @since 14.0
   */
  @SuppressWarnings("nullness") // Unsafe, but we can't do much about it now.