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c80d9d6a93
Add result to part of assert message. PR-URL: https://github.com/nodejs/node/pull/15918 Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
68 lines
1.6 KiB
JavaScript
68 lines
1.6 KiB
JavaScript
'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.alloc(10)
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]);
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assert.strictEqual(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.strictEqual(
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result.toString(),
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'abcdef',
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`result '${result.toString()}' should match original string`
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);
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}));
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// if the trailing garbage happens to look like a gzip header, it should
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// throw an error.
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data = Buffer.concat([
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zlib.gzipSync('abc'),
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zlib.gzipSync('def'),
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Buffer.from([0x1f, 0x8b, 0xff, 0xff]),
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Buffer.alloc(10)
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]);
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assert.throws(
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() => zlib.gunzipSync(data),
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/^Error: unknown compression method$/
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);
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zlib.gunzip(data, common.mustCall((err, result) => {
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common.expectsError({
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code: 'Z_DATA_ERROR',
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type: Error,
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message: 'unknown compression method'
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})(err);
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assert.strictEqual(result, undefined);
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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.from([0x1f, 0x8b, 0xff, 0xff])
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]);
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assert.throws(
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() => zlib.gunzipSync(data),
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/^Error: unknown compression method$/
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);
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zlib.gunzip(data, common.mustCall((err, result) => {
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assert(err instanceof Error);
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assert.strictEqual(err.code, 'Z_DATA_ERROR');
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assert.strictEqual(err.message, 'unknown compression method');
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assert.strictEqual(result, undefined);
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}));
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