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'use strict';
require('../common');
const assert = require('assert');
const zlib = require('zlib');
// For raw deflate encoding, requests for 256-byte windows are rejected as
// invalid by zlib (http://zlib.net/manual.html#Advanced).
// This check was introduced in version 1.2.9 and prior to that there was
// no such rejection which is the reason for the version check below
// (http://zlib.net/ChangeLog.txt).
if (!/^1\.2\.[0-8]$/.test(process.versions.zlib)) {
assert.throws(() => {
zlib.createDeflateRaw({ windowBits: 8 });
}, /^Error: Init error$/);
}
// Regression tests for bugs in the validation logic.
assert.throws(() => {
zlib.createGzip({ chunkSize: 0 });
}, /^RangeError: Invalid chunk size: 0$/);
assert.throws(() => {
zlib.createGzip({ windowBits: 0 });
}, /^RangeError: Invalid windowBits: 0$/);
assert.throws(() => {
zlib.createGzip({ memLevel: 0 });
}, /^RangeError: Invalid memLevel: 0$/);
{
const stream = zlib.createGzip({ level: NaN });
assert.strictEqual(stream._level, zlib.constants.Z_DEFAULT_COMPRESSION);
}
{
const stream = zlib.createGzip({ strategy: NaN });
assert.strictEqual(stream._strategy, zlib.constants.Z_DEFAULT_STRATEGY);
}
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