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'use strict';
// test compression/decompression with dictionary
const common = require('../common');
const assert = require('assert');
const zlib = require('zlib');
const spdyDict = Buffer.from([
'optionsgetheadpostputdeletetraceacceptaccept-charsetaccept-encodingaccept-',
'languageauthorizationexpectfromhostif-modified-sinceif-matchif-none-matchi',
'f-rangeif-unmodifiedsincemax-forwardsproxy-authorizationrangerefererteuser',
'-agent10010120020120220320420520630030130230330430530630740040140240340440',
'5406407408409410411412413414415416417500501502503504505accept-rangesageeta',
'glocationproxy-authenticatepublicretry-afterservervarywarningwww-authentic',
'ateallowcontent-basecontent-encodingcache-controlconnectiondatetrailertran',
'sfer-encodingupgradeviawarningcontent-languagecontent-lengthcontent-locati',
'oncontent-md5content-rangecontent-typeetagexpireslast-modifiedset-cookieMo',
'ndayTuesdayWednesdayThursdayFridaySaturdaySundayJanFebMarAprMayJunJulAugSe',
'pOctNovDecchunkedtext/htmlimage/pngimage/jpgimage/gifapplication/xmlapplic',
'ation/xhtmltext/plainpublicmax-agecharset=iso-8859-1utf-8gzipdeflateHTTP/1',
'.1statusversionurl\0'
].join(''));
const input = [
'HTTP/1.1 200 Ok',
'Server: node.js',
'Content-Length: 0',
''
].join('\r\n');
function basicDictionaryTest() {
let output = '';
const deflate = zlib.createDeflate({ dictionary: spdyDict });
const inflate = zlib.createInflate({ dictionary: spdyDict });
inflate.setEncoding('utf-8');
deflate.on('data', function(chunk) {
inflate.write(chunk);
});
inflate.on('data', function(chunk) {
output += chunk;
});
deflate.on('end', function() {
inflate.end();
});
inflate.on('end', common.mustCall(function() {
assert.strictEqual(input, output);
}));
deflate.write(input);
deflate.end();
}
function deflateResetDictionaryTest() {
let doneReset = false;
let output = '';
const deflate = zlib.createDeflate({ dictionary: spdyDict });
const inflate = zlib.createInflate({ dictionary: spdyDict });
inflate.setEncoding('utf-8');
deflate.on('data', function(chunk) {
if (doneReset)
inflate.write(chunk);
});
inflate.on('data', function(chunk) {
output += chunk;
});
deflate.on('end', function() {
inflate.end();
});
inflate.on('end', common.mustCall(function() {
assert.strictEqual(input, output);
}));
deflate.write(input);
deflate.flush(function() {
deflate.reset();
doneReset = true;
deflate.write(input);
deflate.end();
});
}
function rawDictionaryTest() {
let output = '';
const deflate = zlib.createDeflateRaw({ dictionary: spdyDict });
const inflate = zlib.createInflateRaw({ dictionary: spdyDict });
inflate.setEncoding('utf-8');
deflate.on('data', function(chunk) {
inflate.write(chunk);
});
inflate.on('data', function(chunk) {
output += chunk;
});
deflate.on('end', function() {
inflate.end();
});
inflate.on('end', common.mustCall(function() {
assert.strictEqual(input, output);
}));
deflate.write(input);
deflate.end();
}
function deflateRawResetDictionaryTest() {
let doneReset = false;
let output = '';
const deflate = zlib.createDeflateRaw({ dictionary: spdyDict });
const inflate = zlib.createInflateRaw({ dictionary: spdyDict });
inflate.setEncoding('utf-8');
deflate.on('data', function(chunk) {
if (doneReset)
inflate.write(chunk);
});
inflate.on('data', function(chunk) {
output += chunk;
});
deflate.on('end', function() {
inflate.end();
});
inflate.on('end', common.mustCall(function() {
assert.strictEqual(input, output);
}));
deflate.write(input);
deflate.flush(function() {
deflate.reset();
doneReset = true;
deflate.write(input);
deflate.end();
});
}
basicDictionaryTest();
deflateResetDictionaryTest();
rawDictionaryTest();
deflateRawResetDictionaryTest();