response.dataLength = 10;
                // Copy data to the buffer that was passed in the response constructor
                byte[] testData = new byte[] { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 };
                System.arraycopy(testData, 0, response.b, response.off, testData.length);
                return null;
            }

  public enum SampleMatcherConfig {
    WHITESPACE(CharMatcher.whitespace(), WHITESPACE_CHARACTERS),
    HASH(CharMatcher.is('#'), "#"),
    ASCII(CharMatcher.ascii(), ASCII_CHARACTERS),
    WESTERN_DIGIT("0123456789"),
    ALL_DIGIT(CharMatcher.digit(), ALL_DIGITS),
    OPS_5("+-*/%"),
    HEX_16(CharMatcher.inRange('0', '9').or(CharMatcher.inRange('A', 'F')), "0123456789ABCDEF"),
    HEX_22(
        CharMatcher.inRange('0', '9')

    }

    // Edge/null/empty: message-only constructor should propagate message and set unsuccessful status
    @ParameterizedTest
    @NullSource
    @ValueSource(strings = { "", " ", "simple", "with unicode Ω≈ç√", "long-0123456789-abcdefghijklmnopqrstuvwxyz" })
    @DisplayName("Message-only ctor: propagates message and unsuccessful status")
    void messageOnlyConstructor_setsMessage_andUnsuccessfulStatus(String msg) {
        // Arrange & Act

            }
            count++;
        }

        return value;
    }

    static final char[] HEXCHARS = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' };

    private static String bin_to_hex(int value, final int length) {
        final char[] arr = new char[length];
        int ai = arr.length;
        while (ai-- > 0) {

            }
            count++;
        }

        return value;
    }

    static final char[] HEXCHARS = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' };

    /**
     * Convert binary integer to hexadecimal string
     *
     * @param value the integer value to convert

            'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q',
            'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '+', '/' };

    private static final char PAD = '=';

    private static final byte[] DECODE_TABLE = new byte[128];
    static {
        for (int i = 0; i < DECODE_TABLE.length; i++) {

    }

    /**
     * Array of hexadecimal digit characters used for converting binary data to hex representation.
     */
    public static final char[] HEX_DIGITS = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' };

    /**
     * This is an alternative to the <code>java.lang.Integer.toHexString</code>
     * method. It is an efficient relative that also will pad the left side so

    doTestAllMatches(forPredicate(Predicates.equalTo('c')), "ccc");
    doTestAllMatches(CharMatcher.digit(), "0123456789\u0ED0\u1B59");
    doTestAllMatches(CharMatcher.javaDigit(), "0123456789");
    doTestAllMatches(CharMatcher.digit().and(CharMatcher.ascii()), "0123456789");
    doTestAllMatches(CharMatcher.singleWidth(), "\t0123ABCdef~\u00A0\u2111");
  }

			ok:   true,
		},
		{
			name: "ExactNanos",
			in:   "1.123456789",
			want: time.Unix(1, 123456789),
			ok:   true,
		},
		{
			name: "WithNanoPadding",
			in:   "1.123",
			want: time.Unix(1, 123000000),
			ok:   true,
		},
		{
			name: "WithNanoTruncate",
			in:   "1.123456789123",
			want: time.Unix(1, 123456789),
			ok:   true,
		},
		{
			name: "TrailingError",

    doTestAllMatches(forPredicate(Predicates.equalTo('c')), "ccc");
    doTestAllMatches(CharMatcher.digit(), "0123456789\u0ED0\u1B59");
    doTestAllMatches(CharMatcher.javaDigit(), "0123456789");
    doTestAllMatches(CharMatcher.digit().and(CharMatcher.ascii()), "0123456789");
    doTestAllMatches(CharMatcher.singleWidth(), "\t0123ABCdef~\u00A0\u2111");
  }