76 lines
2.0 KiB
JavaScript
76 lines
2.0 KiB
JavaScript
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var inflate = require('../');
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var zlib = require('zlib');
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var fs = require('fs');
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var assert = require('assert');
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var uncompressed = fs.readFileSync(__dirname + '/lorem.txt');
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describe('tiny-inflate', function() {
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var compressed, noCompression, fixed;
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function deflate(buf, options, fn) {
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var chunks = [];
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zlib.createDeflateRaw(options)
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.on('data', function(chunk) {
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chunks.push(chunk);
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})
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.on('error', fn)
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.on('end', function() {
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fn(null, Buffer.concat(chunks));
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})
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.end(buf);
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}
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before(function(done) {
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zlib.deflateRaw(uncompressed, function(err, data) {
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compressed = data;
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done();
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});
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});
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before(function(done) {
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deflate(uncompressed, { level: zlib.Z_NO_COMPRESSION }, function(err, data) {
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noCompression = data;
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done();
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});
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});
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before(function(done) {
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deflate(uncompressed, { strategy: zlib.Z_FIXED }, function(err, data) {
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fixed = data;
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done();
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});
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});
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it('should inflate some data', function() {
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var out = Buffer.alloc(uncompressed.length);
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inflate(compressed, out);
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assert.deepEqual(out, uncompressed);
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});
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it('should slice output buffer', function() {
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var out = Buffer.alloc(uncompressed.length + 1024);
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var res = inflate(compressed, out);
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assert.deepEqual(res, uncompressed);
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assert.equal(res.length, uncompressed.length);
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});
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it('should handle uncompressed blocks', function() {
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var out = Buffer.alloc(uncompressed.length);
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inflate(noCompression, out);
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assert.deepEqual(out, uncompressed);
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});
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it('should handle fixed huffman blocks', function() {
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var out = Buffer.alloc(uncompressed.length);
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inflate(fixed, out);
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assert.deepEqual(out, uncompressed);
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});
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it('should handle typed arrays', function() {
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var input = new Uint8Array(compressed);
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var out = new Uint8Array(uncompressed.length);
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inflate(input, out);
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assert.deepEqual(out, new Uint8Array(uncompressed));
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});
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});
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