--- a/test/jdk/java/net/httpclient/http2/java.net.http/java/net/http/internal/hpack/HuffmanTest.java Wed Feb 07 15:46:30 2018 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,629 +0,0 @@
-/*
- * Copyright (c) 2015, 2017, Oracle and/or its affiliates. All rights reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
-package java.net.http.internal.hpack;
-
-import org.testng.annotations.Test;
-
-import java.io.IOException;
-import java.io.UncheckedIOException;
-import java.nio.ByteBuffer;
-import java.util.Stack;
-import java.util.regex.Matcher;
-import java.util.regex.Pattern;
-
-import static java.lang.Integer.parseInt;
-import static org.testng.Assert.*;
-
-public final class HuffmanTest {
-
- //
- // https://tools.ietf.org/html/rfc7541#appendix-B
- //
- private static final String SPEC =
- // @formatter:off
- " code as bits as hex len\n" +
- " sym aligned to MSB aligned in\n" +
- " to LSB bits\n" +
- " ( 0) |11111111|11000 1ff8 [13]\n" +
- " ( 1) |11111111|11111111|1011000 7fffd8 [23]\n" +
- " ( 2) |11111111|11111111|11111110|0010 fffffe2 [28]\n" +
- " ( 3) |11111111|11111111|11111110|0011 fffffe3 [28]\n" +
- " ( 4) |11111111|11111111|11111110|0100 fffffe4 [28]\n" +
- " ( 5) |11111111|11111111|11111110|0101 fffffe5 [28]\n" +
- " ( 6) |11111111|11111111|11111110|0110 fffffe6 [28]\n" +
- " ( 7) |11111111|11111111|11111110|0111 fffffe7 [28]\n" +
- " ( 8) |11111111|11111111|11111110|1000 fffffe8 [28]\n" +
- " ( 9) |11111111|11111111|11101010 ffffea [24]\n" +
- " ( 10) |11111111|11111111|11111111|111100 3ffffffc [30]\n" +
- " ( 11) |11111111|11111111|11111110|1001 fffffe9 [28]\n" +
- " ( 12) |11111111|11111111|11111110|1010 fffffea [28]\n" +
- " ( 13) |11111111|11111111|11111111|111101 3ffffffd [30]\n" +
- " ( 14) |11111111|11111111|11111110|1011 fffffeb [28]\n" +
- " ( 15) |11111111|11111111|11111110|1100 fffffec [28]\n" +
- " ( 16) |11111111|11111111|11111110|1101 fffffed [28]\n" +
- " ( 17) |11111111|11111111|11111110|1110 fffffee [28]\n" +
- " ( 18) |11111111|11111111|11111110|1111 fffffef [28]\n" +
- " ( 19) |11111111|11111111|11111111|0000 ffffff0 [28]\n" +
- " ( 20) |11111111|11111111|11111111|0001 ffffff1 [28]\n" +
- " ( 21) |11111111|11111111|11111111|0010 ffffff2 [28]\n" +
- " ( 22) |11111111|11111111|11111111|111110 3ffffffe [30]\n" +
- " ( 23) |11111111|11111111|11111111|0011 ffffff3 [28]\n" +
- " ( 24) |11111111|11111111|11111111|0100 ffffff4 [28]\n" +
- " ( 25) |11111111|11111111|11111111|0101 ffffff5 [28]\n" +
- " ( 26) |11111111|11111111|11111111|0110 ffffff6 [28]\n" +
- " ( 27) |11111111|11111111|11111111|0111 ffffff7 [28]\n" +
- " ( 28) |11111111|11111111|11111111|1000 ffffff8 [28]\n" +
- " ( 29) |11111111|11111111|11111111|1001 ffffff9 [28]\n" +
- " ( 30) |11111111|11111111|11111111|1010 ffffffa [28]\n" +
- " ( 31) |11111111|11111111|11111111|1011 ffffffb [28]\n" +
- " ' ' ( 32) |010100 14 [ 6]\n" +
- " '!' ( 33) |11111110|00 3f8 [10]\n" +
- " '\"' ( 34) |11111110|01 3f9 [10]\n" +
- " '#' ( 35) |11111111|1010 ffa [12]\n" +
- " '$' ( 36) |11111111|11001 1ff9 [13]\n" +
- " '%' ( 37) |010101 15 [ 6]\n" +
- " '&' ( 38) |11111000 f8 [ 8]\n" +
- " ''' ( 39) |11111111|010 7fa [11]\n" +
- " '(' ( 40) |11111110|10 3fa [10]\n" +
- " ')' ( 41) |11111110|11 3fb [10]\n" +
- " '*' ( 42) |11111001 f9 [ 8]\n" +
- " '+' ( 43) |11111111|011 7fb [11]\n" +
- " ',' ( 44) |11111010 fa [ 8]\n" +
- " '-' ( 45) |010110 16 [ 6]\n" +
- " '.' ( 46) |010111 17 [ 6]\n" +
- " '/' ( 47) |011000 18 [ 6]\n" +
- " '0' ( 48) |00000 0 [ 5]\n" +
- " '1' ( 49) |00001 1 [ 5]\n" +
- " '2' ( 50) |00010 2 [ 5]\n" +
- " '3' ( 51) |011001 19 [ 6]\n" +
- " '4' ( 52) |011010 1a [ 6]\n" +
- " '5' ( 53) |011011 1b [ 6]\n" +
- " '6' ( 54) |011100 1c [ 6]\n" +
- " '7' ( 55) |011101 1d [ 6]\n" +
- " '8' ( 56) |011110 1e [ 6]\n" +
- " '9' ( 57) |011111 1f [ 6]\n" +
- " ':' ( 58) |1011100 5c [ 7]\n" +
- " ';' ( 59) |11111011 fb [ 8]\n" +
- " '<' ( 60) |11111111|1111100 7ffc [15]\n" +
- " '=' ( 61) |100000 20 [ 6]\n" +
- " '>' ( 62) |11111111|1011 ffb [12]\n" +
- " '?' ( 63) |11111111|00 3fc [10]\n" +
- " '@' ( 64) |11111111|11010 1ffa [13]\n" +
- " 'A' ( 65) |100001 21 [ 6]\n" +
- " 'B' ( 66) |1011101 5d [ 7]\n" +
- " 'C' ( 67) |1011110 5e [ 7]\n" +
- " 'D' ( 68) |1011111 5f [ 7]\n" +
- " 'E' ( 69) |1100000 60 [ 7]\n" +
- " 'F' ( 70) |1100001 61 [ 7]\n" +
- " 'G' ( 71) |1100010 62 [ 7]\n" +
- " 'H' ( 72) |1100011 63 [ 7]\n" +
- " 'I' ( 73) |1100100 64 [ 7]\n" +
- " 'J' ( 74) |1100101 65 [ 7]\n" +
- " 'K' ( 75) |1100110 66 [ 7]\n" +
- " 'L' ( 76) |1100111 67 [ 7]\n" +
- " 'M' ( 77) |1101000 68 [ 7]\n" +
- " 'N' ( 78) |1101001 69 [ 7]\n" +
- " 'O' ( 79) |1101010 6a [ 7]\n" +
- " 'P' ( 80) |1101011 6b [ 7]\n" +
- " 'Q' ( 81) |1101100 6c [ 7]\n" +
- " 'R' ( 82) |1101101 6d [ 7]\n" +
- " 'S' ( 83) |1101110 6e [ 7]\n" +
- " 'T' ( 84) |1101111 6f [ 7]\n" +
- " 'U' ( 85) |1110000 70 [ 7]\n" +
- " 'V' ( 86) |1110001 71 [ 7]\n" +
- " 'W' ( 87) |1110010 72 [ 7]\n" +
- " 'X' ( 88) |11111100 fc [ 8]\n" +
- " 'Y' ( 89) |1110011 73 [ 7]\n" +
- " 'Z' ( 90) |11111101 fd [ 8]\n" +
- " '[' ( 91) |11111111|11011 1ffb [13]\n" +
- " '\\' ( 92) |11111111|11111110|000 7fff0 [19]\n" +
- " ']' ( 93) |11111111|11100 1ffc [13]\n" +
- " '^' ( 94) |11111111|111100 3ffc [14]\n" +
- " '_' ( 95) |100010 22 [ 6]\n" +
- " '`' ( 96) |11111111|1111101 7ffd [15]\n" +
- " 'a' ( 97) |00011 3 [ 5]\n" +
- " 'b' ( 98) |100011 23 [ 6]\n" +
- " 'c' ( 99) |00100 4 [ 5]\n" +
- " 'd' (100) |100100 24 [ 6]\n" +
- " 'e' (101) |00101 5 [ 5]\n" +
- " 'f' (102) |100101 25 [ 6]\n" +
- " 'g' (103) |100110 26 [ 6]\n" +
- " 'h' (104) |100111 27 [ 6]\n" +
- " 'i' (105) |00110 6 [ 5]\n" +
- " 'j' (106) |1110100 74 [ 7]\n" +
- " 'k' (107) |1110101 75 [ 7]\n" +
- " 'l' (108) |101000 28 [ 6]\n" +
- " 'm' (109) |101001 29 [ 6]\n" +
- " 'n' (110) |101010 2a [ 6]\n" +
- " 'o' (111) |00111 7 [ 5]\n" +
- " 'p' (112) |101011 2b [ 6]\n" +
- " 'q' (113) |1110110 76 [ 7]\n" +
- " 'r' (114) |101100 2c [ 6]\n" +
- " 's' (115) |01000 8 [ 5]\n" +
- " 't' (116) |01001 9 [ 5]\n" +
- " 'u' (117) |101101 2d [ 6]\n" +
- " 'v' (118) |1110111 77 [ 7]\n" +
- " 'w' (119) |1111000 78 [ 7]\n" +
- " 'x' (120) |1111001 79 [ 7]\n" +
- " 'y' (121) |1111010 7a [ 7]\n" +
- " 'z' (122) |1111011 7b [ 7]\n" +
- " '{' (123) |11111111|1111110 7ffe [15]\n" +
- " '|' (124) |11111111|100 7fc [11]\n" +
- " '}' (125) |11111111|111101 3ffd [14]\n" +
- " '~' (126) |11111111|11101 1ffd [13]\n" +
- " (127) |11111111|11111111|11111111|1100 ffffffc [28]\n" +
- " (128) |11111111|11111110|0110 fffe6 [20]\n" +
- " (129) |11111111|11111111|010010 3fffd2 [22]\n" +
- " (130) |11111111|11111110|0111 fffe7 [20]\n" +
- " (131) |11111111|11111110|1000 fffe8 [20]\n" +
- " (132) |11111111|11111111|010011 3fffd3 [22]\n" +
- " (133) |11111111|11111111|010100 3fffd4 [22]\n" +
- " (134) |11111111|11111111|010101 3fffd5 [22]\n" +
- " (135) |11111111|11111111|1011001 7fffd9 [23]\n" +
- " (136) |11111111|11111111|010110 3fffd6 [22]\n" +
- " (137) |11111111|11111111|1011010 7fffda [23]\n" +
- " (138) |11111111|11111111|1011011 7fffdb [23]\n" +
- " (139) |11111111|11111111|1011100 7fffdc [23]\n" +
- " (140) |11111111|11111111|1011101 7fffdd [23]\n" +
- " (141) |11111111|11111111|1011110 7fffde [23]\n" +
- " (142) |11111111|11111111|11101011 ffffeb [24]\n" +
- " (143) |11111111|11111111|1011111 7fffdf [23]\n" +
- " (144) |11111111|11111111|11101100 ffffec [24]\n" +
- " (145) |11111111|11111111|11101101 ffffed [24]\n" +
- " (146) |11111111|11111111|010111 3fffd7 [22]\n" +
- " (147) |11111111|11111111|1100000 7fffe0 [23]\n" +
- " (148) |11111111|11111111|11101110 ffffee [24]\n" +
- " (149) |11111111|11111111|1100001 7fffe1 [23]\n" +
- " (150) |11111111|11111111|1100010 7fffe2 [23]\n" +
- " (151) |11111111|11111111|1100011 7fffe3 [23]\n" +
- " (152) |11111111|11111111|1100100 7fffe4 [23]\n" +
- " (153) |11111111|11111110|11100 1fffdc [21]\n" +
- " (154) |11111111|11111111|011000 3fffd8 [22]\n" +
- " (155) |11111111|11111111|1100101 7fffe5 [23]\n" +
- " (156) |11111111|11111111|011001 3fffd9 [22]\n" +
- " (157) |11111111|11111111|1100110 7fffe6 [23]\n" +
- " (158) |11111111|11111111|1100111 7fffe7 [23]\n" +
- " (159) |11111111|11111111|11101111 ffffef [24]\n" +
- " (160) |11111111|11111111|011010 3fffda [22]\n" +
- " (161) |11111111|11111110|11101 1fffdd [21]\n" +
- " (162) |11111111|11111110|1001 fffe9 [20]\n" +
- " (163) |11111111|11111111|011011 3fffdb [22]\n" +
- " (164) |11111111|11111111|011100 3fffdc [22]\n" +
- " (165) |11111111|11111111|1101000 7fffe8 [23]\n" +
- " (166) |11111111|11111111|1101001 7fffe9 [23]\n" +
- " (167) |11111111|11111110|11110 1fffde [21]\n" +
- " (168) |11111111|11111111|1101010 7fffea [23]\n" +
- " (169) |11111111|11111111|011101 3fffdd [22]\n" +
- " (170) |11111111|11111111|011110 3fffde [22]\n" +
- " (171) |11111111|11111111|11110000 fffff0 [24]\n" +
- " (172) |11111111|11111110|11111 1fffdf [21]\n" +
- " (173) |11111111|11111111|011111 3fffdf [22]\n" +
- " (174) |11111111|11111111|1101011 7fffeb [23]\n" +
- " (175) |11111111|11111111|1101100 7fffec [23]\n" +
- " (176) |11111111|11111111|00000 1fffe0 [21]\n" +
- " (177) |11111111|11111111|00001 1fffe1 [21]\n" +
- " (178) |11111111|11111111|100000 3fffe0 [22]\n" +
- " (179) |11111111|11111111|00010 1fffe2 [21]\n" +
- " (180) |11111111|11111111|1101101 7fffed [23]\n" +
- " (181) |11111111|11111111|100001 3fffe1 [22]\n" +
- " (182) |11111111|11111111|1101110 7fffee [23]\n" +
- " (183) |11111111|11111111|1101111 7fffef [23]\n" +
- " (184) |11111111|11111110|1010 fffea [20]\n" +
- " (185) |11111111|11111111|100010 3fffe2 [22]\n" +
- " (186) |11111111|11111111|100011 3fffe3 [22]\n" +
- " (187) |11111111|11111111|100100 3fffe4 [22]\n" +
- " (188) |11111111|11111111|1110000 7ffff0 [23]\n" +
- " (189) |11111111|11111111|100101 3fffe5 [22]\n" +
- " (190) |11111111|11111111|100110 3fffe6 [22]\n" +
- " (191) |11111111|11111111|1110001 7ffff1 [23]\n" +
- " (192) |11111111|11111111|11111000|00 3ffffe0 [26]\n" +
- " (193) |11111111|11111111|11111000|01 3ffffe1 [26]\n" +
- " (194) |11111111|11111110|1011 fffeb [20]\n" +
- " (195) |11111111|11111110|001 7fff1 [19]\n" +
- " (196) |11111111|11111111|100111 3fffe7 [22]\n" +
- " (197) |11111111|11111111|1110010 7ffff2 [23]\n" +
- " (198) |11111111|11111111|101000 3fffe8 [22]\n" +
- " (199) |11111111|11111111|11110110|0 1ffffec [25]\n" +
- " (200) |11111111|11111111|11111000|10 3ffffe2 [26]\n" +
- " (201) |11111111|11111111|11111000|11 3ffffe3 [26]\n" +
- " (202) |11111111|11111111|11111001|00 3ffffe4 [26]\n" +
- " (203) |11111111|11111111|11111011|110 7ffffde [27]\n" +
- " (204) |11111111|11111111|11111011|111 7ffffdf [27]\n" +
- " (205) |11111111|11111111|11111001|01 3ffffe5 [26]\n" +
- " (206) |11111111|11111111|11110001 fffff1 [24]\n" +
- " (207) |11111111|11111111|11110110|1 1ffffed [25]\n" +
- " (208) |11111111|11111110|010 7fff2 [19]\n" +
- " (209) |11111111|11111111|00011 1fffe3 [21]\n" +
- " (210) |11111111|11111111|11111001|10 3ffffe6 [26]\n" +
- " (211) |11111111|11111111|11111100|000 7ffffe0 [27]\n" +
- " (212) |11111111|11111111|11111100|001 7ffffe1 [27]\n" +
- " (213) |11111111|11111111|11111001|11 3ffffe7 [26]\n" +
- " (214) |11111111|11111111|11111100|010 7ffffe2 [27]\n" +
- " (215) |11111111|11111111|11110010 fffff2 [24]\n" +
- " (216) |11111111|11111111|00100 1fffe4 [21]\n" +
- " (217) |11111111|11111111|00101 1fffe5 [21]\n" +
- " (218) |11111111|11111111|11111010|00 3ffffe8 [26]\n" +
- " (219) |11111111|11111111|11111010|01 3ffffe9 [26]\n" +
- " (220) |11111111|11111111|11111111|1101 ffffffd [28]\n" +
- " (221) |11111111|11111111|11111100|011 7ffffe3 [27]\n" +
- " (222) |11111111|11111111|11111100|100 7ffffe4 [27]\n" +
- " (223) |11111111|11111111|11111100|101 7ffffe5 [27]\n" +
- " (224) |11111111|11111110|1100 fffec [20]\n" +
- " (225) |11111111|11111111|11110011 fffff3 [24]\n" +
- " (226) |11111111|11111110|1101 fffed [20]\n" +
- " (227) |11111111|11111111|00110 1fffe6 [21]\n" +
- " (228) |11111111|11111111|101001 3fffe9 [22]\n" +
- " (229) |11111111|11111111|00111 1fffe7 [21]\n" +
- " (230) |11111111|11111111|01000 1fffe8 [21]\n" +
- " (231) |11111111|11111111|1110011 7ffff3 [23]\n" +
- " (232) |11111111|11111111|101010 3fffea [22]\n" +
- " (233) |11111111|11111111|101011 3fffeb [22]\n" +
- " (234) |11111111|11111111|11110111|0 1ffffee [25]\n" +
- " (235) |11111111|11111111|11110111|1 1ffffef [25]\n" +
- " (236) |11111111|11111111|11110100 fffff4 [24]\n" +
- " (237) |11111111|11111111|11110101 fffff5 [24]\n" +
- " (238) |11111111|11111111|11111010|10 3ffffea [26]\n" +
- " (239) |11111111|11111111|1110100 7ffff4 [23]\n" +
- " (240) |11111111|11111111|11111010|11 3ffffeb [26]\n" +
- " (241) |11111111|11111111|11111100|110 7ffffe6 [27]\n" +
- " (242) |11111111|11111111|11111011|00 3ffffec [26]\n" +
- " (243) |11111111|11111111|11111011|01 3ffffed [26]\n" +
- " (244) |11111111|11111111|11111100|111 7ffffe7 [27]\n" +
- " (245) |11111111|11111111|11111101|000 7ffffe8 [27]\n" +
- " (246) |11111111|11111111|11111101|001 7ffffe9 [27]\n" +
- " (247) |11111111|11111111|11111101|010 7ffffea [27]\n" +
- " (248) |11111111|11111111|11111101|011 7ffffeb [27]\n" +
- " (249) |11111111|11111111|11111111|1110 ffffffe [28]\n" +
- " (250) |11111111|11111111|11111101|100 7ffffec [27]\n" +
- " (251) |11111111|11111111|11111101|101 7ffffed [27]\n" +
- " (252) |11111111|11111111|11111101|110 7ffffee [27]\n" +
- " (253) |11111111|11111111|11111101|111 7ffffef [27]\n" +
- " (254) |11111111|11111111|11111110|000 7fffff0 [27]\n" +
- " (255) |11111111|11111111|11111011|10 3ffffee [26]\n" +
- " EOS (256) |11111111|11111111|11111111|111111 3fffffff [30]";
- // @formatter:on
-
- @Test
- public void read_table() throws IOException {
- Pattern line = Pattern.compile(
- "\\(\\s*(?<ascii>\\d+)\\s*\\)\\s*(?<binary>(\\|(0|1)+)+)\\s*" +
- "(?<hex>[0-9a-zA-Z]+)\\s*\\[\\s*(?<len>\\d+)\\s*\\]");
- Matcher m = line.matcher(SPEC);
- int i = 0;
- while (m.find()) {
- String ascii = m.group("ascii");
- String binary = m.group("binary").replaceAll("\\|", "");
- String hex = m.group("hex");
- String len = m.group("len");
-
- // Several sanity checks for the data read from the table, just to
- // make sure what we read makes sense
- assertEquals(parseInt(len), binary.length());
- assertEquals(parseInt(binary, 2), parseInt(hex, 16));
-
- int expected = parseInt(ascii);
-
- // TODO: find actual eos, do not hardcode it!
- byte[] bytes = intToBytes(0x3fffffff, 30,
- parseInt(hex, 16), parseInt(len));
-
- StringBuilder actual = new StringBuilder();
- Huffman.Reader t = new Huffman.Reader();
- t.read(ByteBuffer.wrap(bytes), actual, false, true);
-
- // What has been read MUST represent a single symbol
- assertEquals(actual.length(), 1, "ascii: " + ascii);
-
- // It's a lot more visual to compare char as codes rather than
- // characters (as some of them might not be visible)
- assertEquals(actual.charAt(0), expected);
- i++;
- }
- assertEquals(i, 257); // 256 + EOS
- }
-
- //
- // https://tools.ietf.org/html/rfc7541#appendix-C.4.1
- //
- @Test
- public void read_1() {
- read("f1e3 c2e5 f23a 6ba0 ab90 f4ff", "www.example.com");
- }
-
- @Test
- public void write_1() {
- write("www.example.com", "f1e3 c2e5 f23a 6ba0 ab90 f4ff");
- }
-
- //
- // https://tools.ietf.org/html/rfc7541#appendix-C.4.2
- //
- @Test
- public void read_2() {
- read("a8eb 1064 9cbf", "no-cache");
- }
-
- @Test
- public void write_2() {
- write("no-cache", "a8eb 1064 9cbf");
- }
-
- //
- // https://tools.ietf.org/html/rfc7541#appendix-C.4.3
- //
- @Test
- public void read_3() {
- read("25a8 49e9 5ba9 7d7f", "custom-key");
- }
-
- @Test
- public void write_3() {
- write("custom-key", "25a8 49e9 5ba9 7d7f");
- }
-
- //
- // https://tools.ietf.org/html/rfc7541#appendix-C.4.3
- //
- @Test
- public void read_4() {
- read("25a8 49e9 5bb8 e8b4 bf", "custom-value");
- }
-
- @Test
- public void write_4() {
- write("custom-value", "25a8 49e9 5bb8 e8b4 bf");
- }
-
- //
- // https://tools.ietf.org/html/rfc7541#appendix-C.6.1
- //
- @Test
- public void read_5() {
- read("6402", "302");
- }
-
- @Test
- public void write_5() {
- write("302", "6402");
- }
-
- //
- // https://tools.ietf.org/html/rfc7541#appendix-C.6.1
- //
- @Test
- public void read_6() {
- read("aec3 771a 4b", "private");
- }
-
- @Test
- public void write_6() {
- write("private", "aec3 771a 4b");
- }
-
- //
- // https://tools.ietf.org/html/rfc7541#appendix-C.6.1
- //
- @Test
- public void read_7() {
- read("d07a be94 1054 d444 a820 0595 040b 8166 e082 a62d 1bff",
- "Mon, 21 Oct 2013 20:13:21 GMT");
- }
-
- @Test
- public void write_7() {
- write("Mon, 21 Oct 2013 20:13:21 GMT",
- "d07a be94 1054 d444 a820 0595 040b 8166 e082 a62d 1bff");
- }
-
- //
- // https://tools.ietf.org/html/rfc7541#appendix-C.6.1
- //
- @Test
- public void read_8() {
- read("9d29 ad17 1863 c78f 0b97 c8e9 ae82 ae43 d3",
- "https://www.example.com");
- }
-
- @Test
- public void write_8() {
- write("https://www.example.com",
- "9d29 ad17 1863 c78f 0b97 c8e9 ae82 ae43 d3");
- }
-
- //
- // https://tools.ietf.org/html/rfc7541#appendix-C.6.2
- //
- @Test
- public void read_9() {
- read("640e ff", "307");
- }
-
- @Test
- public void write_9() {
- write("307", "640e ff");
- }
-
- //
- // https://tools.ietf.org/html/rfc7541#appendix-C.6.3
- //
- @Test
- public void read_10() {
- read("d07a be94 1054 d444 a820 0595 040b 8166 e084 a62d 1bff",
- "Mon, 21 Oct 2013 20:13:22 GMT");
- }
-
- @Test
- public void write_10() {
- write("Mon, 21 Oct 2013 20:13:22 GMT",
- "d07a be94 1054 d444 a820 0595 040b 8166 e084 a62d 1bff");
- }
-
- //
- // https://tools.ietf.org/html/rfc7541#appendix-C.6.3
- //
- @Test
- public void read_11() {
- read("9bd9 ab", "gzip");
- }
-
- @Test
- public void write_11() {
- write("gzip", "9bd9 ab");
- }
-
- //
- // https://tools.ietf.org/html/rfc7541#appendix-C.6.3
- //
- @Test
- public void read_12() {
- read("94e7 821d d7f2 e6c7 b335 dfdf cd5b 3960 " +
- "d5af 2708 7f36 72c1 ab27 0fb5 291f 9587 " +
- "3160 65c0 03ed 4ee5 b106 3d50 07",
- "foo=ASDJKHQKBZXOQWEOPIUAXQWEOIU; max-age=3600; version=1");
- }
-
- @Test
- public void test_trie_has_no_empty_nodes() {
- Huffman.Node root = Huffman.INSTANCE.getRoot();
- Stack<Huffman.Node> backlog = new Stack<>();
- backlog.push(root);
- while (!backlog.isEmpty()) {
- Huffman.Node n = backlog.pop();
- // The only type of nodes we couldn't possibly catch during
- // construction is an empty node: no children and no char
- if (n.left != null) {
- backlog.push(n.left);
- }
- if (n.right != null) {
- backlog.push(n.right);
- }
- assertFalse(!n.charIsSet && n.left == null && n.right == null,
- "Empty node in the trie");
- }
- }
-
- @Test
- public void test_trie_has_257_nodes() {
- int count = 0;
- Huffman.Node root = Huffman.INSTANCE.getRoot();
- Stack<Huffman.Node> backlog = new Stack<>();
- backlog.push(root);
- while (!backlog.isEmpty()) {
- Huffman.Node n = backlog.pop();
- if (n.left != null) {
- backlog.push(n.left);
- }
- if (n.right != null) {
- backlog.push(n.right);
- }
- if (n.isLeaf()) {
- count++;
- }
- }
- assertEquals(count, 257);
- }
-
- @Test
- public void cant_encode_outside_byte() {
- TestHelper.Block<Object> coding =
- () -> new Huffman.Writer()
- .from(((char) 256) + "", 0, 1)
- .write(ByteBuffer.allocate(1));
- RuntimeException e =
- TestHelper.assertVoidThrows(RuntimeException.class, coding);
- TestHelper.assertExceptionMessageContains(e, "char");
- }
-
- private static void read(String hexdump, String decoded) {
- ByteBuffer source = SpecHelper.toBytes(hexdump);
- Appendable actual = new StringBuilder();
- try {
- new Huffman.Reader().read(source, actual, true);
- } catch (IOException e) {
- throw new UncheckedIOException(e);
- }
- assertEquals(actual.toString(), decoded);
- }
-
- private static void write(String decoded, String hexdump) {
- int n = Huffman.INSTANCE.lengthOf(decoded);
- ByteBuffer destination = ByteBuffer.allocate(n); // Extra margin (1) to test having more bytes in the destination than needed is ok
- Huffman.Writer writer = new Huffman.Writer();
- BuffersTestingKit.forEachSplit(destination, byteBuffers -> {
- writer.from(decoded, 0, decoded.length());
- boolean written = false;
- for (ByteBuffer b : byteBuffers) {
- int pos = b.position();
- written = writer.write(b);
- b.position(pos);
- }
- assertTrue(written);
- ByteBuffer concated = BuffersTestingKit.concat(byteBuffers);
- String actual = SpecHelper.toHexdump(concated);
- assertEquals(actual, hexdump);
- writer.reset();
- });
- }
-
- //
- // It's not very pretty, yes I know that
- //
- // hex:
- //
- // |31|30|...|N-1|...|01|00|
- // \ /
- // codeLength
- //
- // hex <<= 32 - codeLength; (align to MSB):
- //
- // |31|30|...|32-N|...|01|00|
- // \ /
- // codeLength
- //
- // EOS:
- //
- // |31|30|...|M-1|...|01|00|
- // \ /
- // eosLength
- //
- // eos <<= 32 - eosLength; (align to MSB):
- //
- // pad with MSBs of EOS:
- //
- // |31|30|...|32-N|32-N-1|...|01|00|
- // | 32|...|
- //
- // Finally, split into byte[]
- //
- private byte[] intToBytes(int eos, int eosLength, int hex, int codeLength) {
- hex <<= 32 - codeLength;
- eos >>= codeLength - (32 - eosLength);
- hex |= eos;
- int n = (int) Math.ceil(codeLength / 8.0);
- byte[] result = new byte[n];
- for (int i = 0; i < n; i++) {
- result[i] = (byte) (hex >> (32 - 8 * (i + 1)));
- }
- return result;
- }
-}