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'use strict';
require('../common');
// This test ensures that zlib throws a RangeError if the final buffer needs to
// be larger than kMaxLength and concatenation fails.
// https://github.com/nodejs/node/pull/1811
const assert = require('assert');
// Change kMaxLength for zlib to trigger the error without having to allocate
// large Buffers.
const buffer = require('buffer');
const oldkMaxLength = buffer.kMaxLength;
buffer.kMaxLength = 128;
const zlib = require('zlib');
buffer.kMaxLength = oldkMaxLength;
const encoded = Buffer.from('H4sIAAAAAAAAA0tMHFgAAIw2K/GAAAAA', 'base64');
// Async
zlib.gunzip(encoded, function(err) {
assert.ok(err instanceof RangeError);
});
// Sync
assert.throws(function() {
zlib.gunzipSync(encoded);
}, RangeError);