kopia lustrzana https://github.com/viljoviitanen/pako
97 wiersze
2.6 KiB
JavaScript
97 wiersze
2.6 KiB
JavaScript
// Deflate coverage tests
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/*global describe, it*/
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'use strict';
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var assert = require('assert');
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var fs = require('fs');
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var path = require('path');
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var c = require('../lib/zlib/constants');
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var msg = require('../lib/zlib/messages');
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var zlib_deflate = require('../lib/zlib/deflate.js');
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var zstream = require('../lib/zlib/zstream');
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var pako = require('../index');
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var short_sample = 'hello world';
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var long_sample = fs.readFileSync(path.join(__dirname, 'fixtures/samples/lorem_en_100k.txt'));
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function testDeflate(data, opts, flush) {
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var deflator = new pako.Deflate(opts);
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deflator.push(data, flush);
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deflator.push(data, true);
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assert.equal(deflator.err, false, msg[deflator.err]);
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}
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describe('Deflate support', function() {
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it('stored', function() {
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testDeflate(short_sample, {level: 0, chunkSize: 200}, 0);
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testDeflate(short_sample, {level: 0, chunkSize: 10}, 5);
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});
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it('fast', function() {
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testDeflate(short_sample, {level: 1, chunkSize: 10}, 5);
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testDeflate(long_sample, {level: 1, memLevel: 1, chunkSize: 10}, 0);
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});
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it('slow', function() {
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testDeflate(short_sample, {level: 4, chunkSize: 10}, 5);
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testDeflate(long_sample, {level: 9, memLevel: 1, chunkSize: 10}, 0);
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});
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it('rle', function() {
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testDeflate(short_sample, {strategy: 3}, 0);
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testDeflate(short_sample, {strategy: 3, chunkSize: 10}, 5);
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testDeflate(long_sample, {strategy: 3, chunkSize: 10}, 0);
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});
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it('huffman', function() {
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testDeflate(short_sample, {strategy: 2}, 0);
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testDeflate(short_sample, {strategy: 2, chunkSize: 10}, 5);
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testDeflate(long_sample, {strategy: 2, chunkSize: 10}, 0);
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});
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});
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describe('Deflate states', function() {
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//in port checking input parameters was removed
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it('inflate bad parameters', function () {
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var ret, strm;
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ret = zlib_deflate.deflate(null, 0);
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assert(ret === c.Z_STREAM_ERROR);
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strm = new zstream();
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ret = zlib_deflate.deflateInit(null);
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assert(ret === c.Z_STREAM_ERROR);
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ret = zlib_deflate.deflateInit(strm, 6);
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assert(ret === c.Z_OK);
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ret = zlib_deflate.deflateSetHeader(null);
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assert(ret === c.Z_STREAM_ERROR);
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strm.state.wrap = 1;
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ret = zlib_deflate.deflateSetHeader(strm, null);
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assert(ret === c.Z_STREAM_ERROR);
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strm.state.wrap = 2;
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ret = zlib_deflate.deflateSetHeader(strm, null);
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assert(ret === c.Z_OK);
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ret = zlib_deflate.deflate(strm, c.Z_FINISH);
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assert(ret === c.Z_BUF_ERROR);
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ret = zlib_deflate.deflateEnd(null);
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assert(ret === c.Z_STREAM_ERROR);
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//BS_NEED_MORE
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strm.state.status = 5;
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ret = zlib_deflate.deflateEnd(strm);
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assert(ret === c.Z_STREAM_ERROR);
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});
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});
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