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test: check zlib version for createDeflateRaw

We are currenly builing Node with --shared-zlib which happens to be
version 1.2.8. The test for zlib.createDeflateRaw is expected to fail
but does not when using version 1.2.8.

As far as I can tell the fix referred to in the comments was
introduced in version 1.2.9:
- Reject a window size of 256 bytes if not using the zlib wrapper

This commit suggests adding a check for the version and skipping this
assert if the version is less than 1.2.9.

Backport-PR-URL: #15478
PR-URL: #13697
Reviewed-By: Benjamin Gruenbaum <>
Reviewed-By: Colin Ihrig <>
Reviewed-By: James M Snell <>
Reviewed-By: Luigi Pinca <>
Reviewed-By: Anna Henningsen <>
Reviewed-By: Richard Lau <>
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danbev authored and MylesBorins committed Jun 15, 2017
1 parent feb6863 commit 8e003155067a8a97a2104ef379e663e243a089a0
Showing with 6 additions and 1 deletion.
  1. +6 −1 test/parallel/test-zlib-failed-init.js
@@ -1,10 +1,15 @@
'use strict';
const common = require('../common');
const assert = require('assert');
const zlib = require('zlib');
if (process.config.variables.node_shared_zlib &&
/^1\.2\.[0-8]$/.test(process.versions.zlib)) {
common.skip("older versions of shared zlib don't throw on create");
// For raw deflate encoding, requests for 256-byte windows are rejected as
// invalid by zlib.
// (

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