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50 lines
1.3 KiB
50 lines
1.3 KiB
'use strict';
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// test unzipping a gzip file that has trailing garbage
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const common = require('../common');
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const assert = require('assert');
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const zlib = require('zlib');
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// should ignore trailing null-bytes
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let data = Buffer.concat([
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zlib.gzipSync('abc'),
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zlib.gzipSync('def'),
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Buffer(10).fill(0)
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]);
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assert.equal(zlib.gunzipSync(data).toString(), 'abcdef');
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zlib.gunzip(data, common.mustCall((err, result) => {
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assert.ifError(err);
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assert.equal(result, 'abcdef', 'result should match original string');
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}));
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// if the trailing garbage happens to look like a gzip header, it should
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// throw an error.
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data = Buffer.concat([
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zlib.gzipSync('abc'),
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zlib.gzipSync('def'),
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Buffer([0x1f, 0x8b, 0xff, 0xff]),
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Buffer(10).fill(0)
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]);
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assert.throws(() => zlib.gunzipSync(data));
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zlib.gunzip(data, common.mustCall((err, result) => {
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assert(err);
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}));
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// In this case the trailing junk is too short to be a gzip segment
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// So we ignore it and decompression succeeds.
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data = Buffer.concat([
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zlib.gzipSync('abc'),
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zlib.gzipSync('def'),
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Buffer([0x1f, 0x8b, 0xff, 0xff])
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]);
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assert.equal(zlib.gunzipSync(data).toString(), 'abcdef');
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zlib.gunzip(data, common.mustCall((err, result) => {
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assert.ifError(err);
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assert.equal(result, 'abcdef', 'result should match original string');
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}));
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