* Returns the index of the first matching BMP character in a character sequence, or {@code -1} if
   * no matching character is present.
   *
   * <p>The default implementation iterates over the sequence in forward order calling {@link
   * #matches} for each character.
   *
   * @param sequence the character sequence to examine from the beginning
   * @return an index, or {@code -1} if no character matches
   */

import static com.google.common.truth.Truth.assertThat;
import static java.lang.Character.MAX_CODE_POINT;
import static java.lang.Character.MAX_HIGH_SURROGATE;
import static java.lang.Character.MAX_LOW_SURROGATE;
import static java.lang.Character.MIN_HIGH_SURROGATE;
import static java.lang.Character.MIN_LOW_SURROGATE;
import static java.lang.Character.MIN_SUPPLEMENTARY_CODE_POINT;
import static java.nio.charset.StandardCharsets.UTF_8;

        for (int i = 0; i < testStringTrue.length(); i++) {
            assertEquals(testStringTrue.charAt(i), (char) unicodeStringTrue.buffer[i], "Character mismatch");
        }
        assertEquals(0, unicodeStringTrue.buffer[testStringTrue.length()], "Last character should be zero");

        // Test with a non-empty string and zterm = false
        String testStringFalse = "Hello";

            }
            size--;
        }
    }

    /**
     * Converts a long value to hexadecimal characters and writes them to the specified character array.
     *
     * @param val the long value to convert to hexadecimal characters
     * @param dst the destination character array to write the hex digits into
     * @param dstIndex the starting index in the destination array

    assertFailsToDecode(base16(), "\n\n", "Unrecognized character: 0xa");
    assertFailsToDecode(base16(), "EFGH", "Unrecognized character: G");
    // Valid base16 strings always have an even length.
    assertFailsToDecode(base16(), "A", "Invalid input length 1");
    assertFailsToDecode(base16(), "ABC");
    // These have a combination of invalid length and unrecognized characters.

            }
            size--;
        }
    }

    /**
     * Converts a long value to hexadecimal characters and writes them to the specified character array.
     *
     * @param val the long value to convert to hexadecimal characters
     * @param dst the destination character array to write the hex digits into
     * @param dstIndex the starting index in the destination array

        String msg = "\u00A1\u00A2"; // two Unicode characters
        byte[] encoded = encodeUnicode(msg);
        assertEquals(4, encoded.length, "Encoded Unicode string should be 4 bytes");

        // Verify little-endian encoding
        assertEquals((byte) 0xA1, encoded[0], "First byte of first character");
        assertEquals((byte) 0x00, encoded[1], "Second byte of first character");

    }

    /**
     * SAX event handler called to process character data between XML elements.
     * Accumulates text content in a buffer for later processing when the element ends.
     *
     * @param ch the characters from the XML document
     * @param start the start position in the character array
     * @param length the number of characters to use from the character array

    assertFailsToDecode(base16(), "\n\n", "Unrecognized character: 0xa");
    assertFailsToDecode(base16(), "EFGH", "Unrecognized character: G");
    // Valid base16 strings always have an even length.
    assertFailsToDecode(base16(), "A", "Invalid input length 1");
    assertFailsToDecode(base16(), "ABC");
    // These have a combination of invalid length and unrecognized characters.

    assertFalse(table.containsValue(null));
  }

  public void testGet() {
    table = create("foo", 1, 'a', "bar", 1, 'b', "foo", 3, 'c');
    assertEquals((Character) 'a', table.get("foo", 1));
    assertEquals((Character) 'b', table.get("bar", 1));
    assertEquals((Character) 'c', table.get("foo", 3));
    assertNull(table.get("foo", 2));
    assertNull(table.get("bar", 3));
    assertNull(table.get("cat", 1));