576 lines
18 KiB
JavaScript
576 lines
18 KiB
JavaScript
var expect = require('chai').expect;
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var util = require('./util');
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var compressor = require('../lib/protocol/compressor');
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var HeaderTable = compressor.HeaderTable;
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var HuffmanTable = compressor.HuffmanTable;
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var HeaderSetCompressor = compressor.HeaderSetCompressor;
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var HeaderSetDecompressor = compressor.HeaderSetDecompressor;
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var Compressor = compressor.Compressor;
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var Decompressor = compressor.Decompressor;
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var test_integers = [{
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N: 5,
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I: 10,
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buffer: new Buffer([10])
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}, {
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N: 0,
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I: 10,
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buffer: new Buffer([10])
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}, {
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N: 5,
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I: 1337,
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buffer: new Buffer([31, 128 + 26, 10])
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}, {
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N: 0,
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I: 1337,
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buffer: new Buffer([128 + 57, 10])
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}];
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var test_strings = [{
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string: 'www.foo.com',
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buffer: new Buffer('89f1e3c2f29ceb90f4ff', 'hex')
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}, {
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string: 'éáűőúöüó€',
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buffer: new Buffer('13c3a9c3a1c5b1c591c3bac3b6c3bcc3b3e282ac', 'hex')
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}];
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test_huffman_request = {
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'GET': 'c5837f',
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'http': '9d29af',
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'/': '63',
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'www.foo.com': 'f1e3c2f29ceb90f4ff',
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'https': '9d29ad1f',
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'www.bar.com': 'f1e3c2f18ec5c87a7f',
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'no-cache': 'a8eb10649cbf',
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'/custom-path.css': '6096a127a56ac699d72211',
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'custom-key': '25a849e95ba97d7f',
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'custom-value': '25a849e95bb8e8b4bf'
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};
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test_huffman_response = {
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'302': '6402',
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'private': 'aec3771a4b',
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'Mon, 21 OCt 2013 20:13:21 GMT': 'd07abe941054d5792a0801654102e059b820a98b46ff',
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': https://www.bar.com': 'b8a4e94d68b8c31e3c785e31d8b90f4f',
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'200': '1001',
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'Mon, 21 OCt 2013 20:13:22 GMT': 'd07abe941054d5792a0801654102e059b821298b46ff',
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'https://www.bar.com': '9d29ad171863c78f0bc63b1721e9',
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'gzip': '9bd9ab',
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'foo=AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\
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AAAAAAAAAAAAAAAAAAAAAAAAAALASDJKHQKBZXOQWEOPIUAXQWEOIUAXLJKHQWOEIUAL\
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QWEOIUAXLQEUAXLLKJASDQWEOUIAXN1234LASDJKHQKBZXOQWEOPIUAXQWEOIUAXLJKH\
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QWOEIUALQWEOIUAXLQEUAXLLKJASDQWEOUIAXN1234LASDJKHQKBZXOQWEOPIUAXQWEO\
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IUAXLJKHQWOEIUALQWEOIUAXLQEUAXLLKJASDQWEOUIAXN1234LASDJKHQKBZXOQWEOP\
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IUAXQWEOIUAXLJKHQWOEIUALQWEOIUAXLQEUAXLLKJASDQWEOUIAXN1234ZZZZZZZZZZ\
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ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ1234 m\
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ax-age=3600; version=1': '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',
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'foo=ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ\
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ZZZZZZZZZZZZZZZZZZZZZZZZZZLASDJKHQKBZXOQWEOPIUAXQWEOIUAXLJKHQWOEIUAL\
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QWEOIUAXLQEUAXLLKJASDQWEOUIAXN1234LASDJKHQKBZXOQWEOPIUAXQWEOIUAXLJKH\
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QWOEIUALQWEOIUAXLQEUAXLLKJASDQWEOUIAXN1234LASDJKHQKBZXOQWEOPIUAXQWEO\
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IUAXLJKHQWOEIUALQWEOIUAXLQEUAXLLKJASDQWEOUIAXN1234LASDJKHQKBZXOQWEOP\
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IUAXQWEOIUAXLJKHQWOEIUALQWEOIUAXLQEUAXLLKJASDQWEOUIAXN1234AAAAAAAAAA\
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AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA1234 m\
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ax-age=3600; version=1': '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'
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};
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var test_headers = [{
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// index
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header: {
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name: 1,
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value: 1,
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index: false,
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mustNeverIndex: false,
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contextUpdate: false,
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newMaxSize: 0
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},
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buffer: new Buffer('82', 'hex')
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}, {
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// index
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header: {
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name: 5,
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value: 5,
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index: false,
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mustNeverIndex: false,
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contextUpdate: false,
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newMaxSize: 0
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},
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buffer: new Buffer('86', 'hex')
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}, {
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// index
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header: {
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name: 3,
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value: 3,
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index: false,
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mustNeverIndex: false,
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contextUpdate: false,
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newMaxSize: 0
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},
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buffer: new Buffer('84', 'hex')
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}, {
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// literal w/index, name index
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header: {
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name: 0,
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value: 'www.foo.com',
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index: true,
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mustNeverIndex: false,
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contextUpdate: false,
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newMaxSize: 0
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},
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buffer: new Buffer('41' + '89f1e3c2f29ceb90f4ff', 'hex')
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}, {
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// indexed
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header: {
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name: 1,
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value: 1,
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index: false,
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mustNeverIndex: false,
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contextUpdate: false,
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newMaxSize: 0
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},
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buffer: new Buffer('82', 'hex')
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}, {
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// indexed
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header: {
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name: 6,
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value: 6,
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index: false,
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mustNeverIndex: false,
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contextUpdate: false,
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newMaxSize: 0
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},
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buffer: new Buffer('87', 'hex')
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}, {
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// indexed
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header: {
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name: 3,
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value: 3,
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index: false,
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mustNeverIndex: false,
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contextUpdate: false,
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newMaxSize: 0
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},
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buffer: new Buffer('84', 'hex')
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}, {
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// literal w/index, name index
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header: {
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name: 0,
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value: 'www.bar.com',
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index: true,
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mustNeverIndex: false,
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contextUpdate: false,
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newMaxSize: 0
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},
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buffer: new Buffer('41' + '89f1e3c2f18ec5c87a7f', 'hex')
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}, {
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// literal w/index, name index
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header: {
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name: 23,
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value: 'no-cache',
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index: true,
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mustNeverIndex: false,
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contextUpdate: false,
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newMaxSize: 0
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},
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buffer: new Buffer('58' + '86a8eb10649cbf', 'hex')
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}, {
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// index
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header: {
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name: 1,
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value: 1,
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index: false,
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mustNeverIndex: false,
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contextUpdate: false,
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newMaxSize: 0
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},
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buffer: new Buffer('82', 'hex')
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}, {
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// index
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header: {
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name: 6,
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value: 6,
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index: false,
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mustNeverIndex: false,
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contextUpdate: false,
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newMaxSize: 0
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},
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buffer: new Buffer('87', 'hex')
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}, {
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// literal w/index, name index
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header: {
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name: 3,
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value: '/custom-path.css',
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index: true,
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mustNeverIndex: false,
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contextUpdate: false,
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newMaxSize: 0
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},
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buffer: new Buffer('44' + '8b6096a127a56ac699d72211', 'hex')
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}, {
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// index
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header: {
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name: 63,
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value: 63,
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index: false,
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mustNeverIndex: false,
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contextUpdate: false,
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newMaxSize: 0
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},
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buffer: new Buffer('C0', 'hex')
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}, {
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// literal w/index, new name & value
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header: {
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name: 'custom-key',
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value: 'custom-value',
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index: true,
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mustNeverIndex: false,
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contextUpdate: false,
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newMaxSize: 0
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},
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buffer: new Buffer('40' + '8825a849e95ba97d7f' + '8925a849e95bb8e8b4bf', 'hex')
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}, {
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// index
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header: {
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name: 1,
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value: 1,
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index: false,
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mustNeverIndex: false,
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contextUpdate: false,
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newMaxSize: 0
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},
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buffer: new Buffer('82', 'hex')
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}, {
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// index
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header: {
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name: 6,
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value: 6,
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index: false,
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mustNeverIndex: false,
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contextUpdate: false,
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newMaxSize: 0
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},
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buffer: new Buffer('87', 'hex')
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}, {
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// index
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header: {
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name: 62,
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value: 62,
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index: false,
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mustNeverIndex: false,
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contextUpdate: false,
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newMaxSize: 0
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},
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buffer: new Buffer('BF', 'hex')
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}, {
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// index
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header: {
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name: 65,
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value: 65,
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index: false,
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mustNeverIndex: false,
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contextUpdate: false,
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newMaxSize: 0
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},
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buffer: new Buffer('C2', 'hex')
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}, {
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// index
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header: {
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name: 64,
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value: 64,
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index: false,
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mustNeverIndex: false,
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contextUpdate: false,
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newMaxSize: 0
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},
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buffer: new Buffer('C1', 'hex')
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}, {
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// index
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header: {
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name: 61,
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value: 61,
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index: false,
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mustNeverIndex: false,
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contextUpdate: false,
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newMaxSize: 0
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},
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buffer: new Buffer('BE', 'hex')
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}, {
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// Literal w/o index, name index
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header: {
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name: 6,
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value: "whatever",
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index: false,
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mustNeverIndex: false,
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contextUpdate: false,
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newMaxSize: 0
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},
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buffer: new Buffer('07' + '86f138d25ee5b3', 'hex')
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}, {
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// Literal w/o index, new name & value
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header: {
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name: "foo",
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value: "bar",
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index: false,
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mustNeverIndex: false,
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contextUpdate: false,
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newMaxSize: 0
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},
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buffer: new Buffer('00' + '8294e7' + '03626172', 'hex')
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}, {
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// Literal never indexed, name index
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header: {
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name: 6,
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value: "whatever",
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index: false,
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mustNeverIndex: true,
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contextUpdate: false,
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newMaxSize: 0
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},
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buffer: new Buffer('17' + '86f138d25ee5b3', 'hex')
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}, {
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// Literal never indexed, new name & value
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header: {
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name: "foo",
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value: "bar",
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index: false,
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mustNeverIndex: true,
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contextUpdate: false,
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newMaxSize: 0
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},
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buffer: new Buffer('10' + '8294e7' + '03626172', 'hex')
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}, {
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header: {
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name: -1,
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value: -1,
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index: false,
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mustNeverIndex: false,
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contextUpdate: true,
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newMaxSize: 100
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},
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buffer: new Buffer('3F45', 'hex')
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}];
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var test_header_sets = [{
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headers: {
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':method': 'GET',
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':scheme': 'http',
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':path': '/',
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':authority': 'www.foo.com'
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},
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buffer: util.concat(test_headers.slice(0, 4).map(function(test) { return test.buffer; }))
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}, {
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headers: {
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':method': 'GET',
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':scheme': 'https',
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':path': '/',
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':authority': 'www.bar.com',
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'cache-control': 'no-cache'
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},
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buffer: util.concat(test_headers.slice(4, 9).map(function(test) { return test.buffer; }))
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}, {
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headers: {
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':method': 'GET',
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':scheme': 'https',
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':path': '/custom-path.css',
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':authority': 'www.bar.com',
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'custom-key': 'custom-value'
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},
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buffer: util.concat(test_headers.slice(9, 14).map(function(test) { return test.buffer; }))
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}, {
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headers: {
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':method': 'GET',
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':scheme': 'https',
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':path': '/custom-path.css',
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':authority': ['www.foo.com', 'www.bar.com'],
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'custom-key': 'custom-value'
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},
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buffer: util.concat(test_headers.slice(14, 19).map(function(test) { return test.buffer; }))
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}];
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describe('compressor.js', function() {
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describe('HeaderTable', function() {
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});
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describe('HuffmanTable', function() {
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describe('method encode(buffer)', function() {
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it('should return the Huffman encoded version of the input buffer', function() {
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var table = HuffmanTable.huffmanTable;
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for (var decoded in test_huffman_request) {
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var encoded = test_huffman_request[decoded];
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expect(table.encode(new Buffer(decoded)).toString('hex')).to.equal(encoded);
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}
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table = HuffmanTable.huffmanTable;
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for (decoded in test_huffman_response) {
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encoded = test_huffman_response[decoded];
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expect(table.encode(new Buffer(decoded)).toString('hex')).to.equal(encoded);
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}
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});
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});
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describe('method decode(buffer)', function() {
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it('should return the Huffman decoded version of the input buffer', function() {
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var table = HuffmanTable.huffmanTable;
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for (var decoded in test_huffman_request) {
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var encoded = test_huffman_request[decoded];
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expect(table.decode(new Buffer(encoded, 'hex')).toString()).to.equal(decoded);
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}
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table = HuffmanTable.huffmanTable;
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for (decoded in test_huffman_response) {
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encoded = test_huffman_response[decoded];
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expect(table.decode(new Buffer(encoded, 'hex')).toString()).to.equal(decoded);
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}
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});
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});
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});
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describe('HeaderSetCompressor', function() {
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describe('static method .integer(I, N)', function() {
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it('should return an array of buffers that represent the N-prefix coded form of the integer I', function() {
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for (var i = 0; i < test_integers.length; i++) {
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var test = test_integers[i];
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test.buffer.cursor = 0;
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expect(util.concat(HeaderSetCompressor.integer(test.I, test.N))).to.deep.equal(test.buffer);
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}
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});
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});
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describe('static method .string(string)', function() {
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it('should return an array of buffers that represent the encoded form of the string', function() {
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var table = HuffmanTable.huffmanTable;
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for (var i = 0; i < test_strings.length; i++) {
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var test = test_strings[i];
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expect(util.concat(HeaderSetCompressor.string(test.string, table))).to.deep.equal(test.buffer);
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}
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});
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});
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describe('static method .header({ name, value, index })', function() {
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it('should return an array of buffers that represent the encoded form of the header', function() {
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var table = HuffmanTable.huffmanTable;
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for (var i = 0; i < test_headers.length; i++) {
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var test = test_headers[i];
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expect(util.concat(HeaderSetCompressor.header(test.header, table))).to.deep.equal(test.buffer);
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}
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});
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});
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});
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|
|
|
describe('HeaderSetDecompressor', function() {
|
|
describe('static method .integer(buffer, N)', function() {
|
|
it('should return the parsed N-prefix coded number and increase the cursor property of buffer', function() {
|
|
for (var i = 0; i < test_integers.length; i++) {
|
|
var test = test_integers[i];
|
|
test.buffer.cursor = 0;
|
|
expect(HeaderSetDecompressor.integer(test.buffer, test.N)).to.equal(test.I);
|
|
expect(test.buffer.cursor).to.equal(test.buffer.length);
|
|
}
|
|
});
|
|
});
|
|
describe('static method .string(buffer)', function() {
|
|
it('should return the parsed string and increase the cursor property of buffer', function() {
|
|
var table = HuffmanTable.huffmanTable;
|
|
for (var i = 0; i < test_strings.length; i++) {
|
|
var test = test_strings[i];
|
|
test.buffer.cursor = 0;
|
|
expect(HeaderSetDecompressor.string(test.buffer, table)).to.equal(test.string);
|
|
expect(test.buffer.cursor).to.equal(test.buffer.length);
|
|
}
|
|
});
|
|
});
|
|
describe('static method .header(buffer)', function() {
|
|
it('should return the parsed header and increase the cursor property of buffer', function() {
|
|
var table = HuffmanTable.huffmanTable;
|
|
for (var i = 0; i < test_headers.length; i++) {
|
|
var test = test_headers[i];
|
|
test.buffer.cursor = 0;
|
|
expect(HeaderSetDecompressor.header(test.buffer, table)).to.deep.equal(test.header);
|
|
expect(test.buffer.cursor).to.equal(test.buffer.length);
|
|
}
|
|
});
|
|
});
|
|
});
|
|
describe('Decompressor', function() {
|
|
describe('method decompress(buffer)', function() {
|
|
it('should return the parsed header set in { name1: value1, name2: [value2, value3], ... } format', function() {
|
|
var decompressor = new Decompressor(util.log, 'REQUEST');
|
|
for (var i = 0; i < test_header_sets.length - 1; i++) {
|
|
var header_set = test_header_sets[i];
|
|
expect(decompressor.decompress(header_set.buffer)).to.deep.equal(header_set.headers);
|
|
}
|
|
});
|
|
});
|
|
describe('transform stream', function() {
|
|
it('should emit an error event if a series of header frames is interleaved with other frames', function() {
|
|
var decompressor = new Decompressor(util.log, 'REQUEST');
|
|
var error_occured = false;
|
|
decompressor.on('error', function() {
|
|
error_occured = true;
|
|
});
|
|
decompressor.write({
|
|
type: 'HEADERS',
|
|
flags: {
|
|
END_HEADERS: false
|
|
},
|
|
data: new Buffer(5)
|
|
});
|
|
decompressor.write({
|
|
type: 'DATA',
|
|
flags: {},
|
|
data: new Buffer(5)
|
|
});
|
|
expect(error_occured).to.be.equal(true);
|
|
});
|
|
});
|
|
});
|
|
|
|
describe('invariant', function() {
|
|
describe('decompressor.decompress(compressor.compress(headerset)) === headerset', function() {
|
|
it('should be true for any header set if the states are synchronized', function() {
|
|
var compressor = new Compressor(util.log, 'REQUEST');
|
|
var decompressor = new Decompressor(util.log, 'REQUEST');
|
|
var n = test_header_sets.length;
|
|
for (var i = 0; i < 10; i++) {
|
|
var headers = test_header_sets[i%n].headers;
|
|
var compressed = compressor.compress(headers);
|
|
var decompressed = decompressor.decompress(compressed);
|
|
expect(decompressed).to.deep.equal(headers);
|
|
expect(compressor._table).to.deep.equal(decompressor._table);
|
|
}
|
|
});
|
|
});
|
|
describe('source.pipe(compressor).pipe(decompressor).pipe(destination)', function() {
|
|
it('should behave like source.pipe(destination) for a stream of frames', function(done) {
|
|
var compressor = new Compressor(util.log, 'RESPONSE');
|
|
var decompressor = new Decompressor(util.log, 'RESPONSE');
|
|
var n = test_header_sets.length;
|
|
compressor.pipe(decompressor);
|
|
for (var i = 0; i < 10; i++) {
|
|
compressor.write({
|
|
type: i%2 ? 'HEADERS' : 'PUSH_PROMISE',
|
|
flags: {},
|
|
headers: test_header_sets[i%n].headers
|
|
});
|
|
}
|
|
setTimeout(function() {
|
|
for (var j = 0; j < 10; j++) {
|
|
expect(decompressor.read().headers).to.deep.equal(test_header_sets[j%n].headers);
|
|
}
|
|
done();
|
|
}, 10);
|
|
});
|
|
});
|
|
describe('huffmanTable.decompress(huffmanTable.compress(buffer)) === buffer', function() {
|
|
it('should be true for any buffer', function() {
|
|
for (var i = 0; i < 10; i++) {
|
|
var buffer = [];
|
|
while (Math.random() > 0.1) {
|
|
buffer.push(Math.floor(Math.random() * 256))
|
|
}
|
|
buffer = new Buffer(buffer);
|
|
var table = HuffmanTable.huffmanTable;
|
|
var result = table.decode(table.encode(buffer));
|
|
expect(result).to.deep.equal(buffer);
|
|
}
|
|
});
|
|
});
|
|
});
|
|
});
|