From bf63a37f832fd81ccabd970c48f5842c497d47ca Mon Sep 17 00:00:00 2001
From: Alexey Orlenko <eaglexrlnk@gmail.com>
Date: Thu, 18 May 2017 18:53:35 +0300
Subject: [PATCH] squash! check windowsBits === 8 early

---
 lib/zlib.js                                                   | 4 ++++
 ...ed-init.js => test-zlib-deflate-unsupported-windowbits.js} | 2 +-
 2 files changed, 5 insertions(+), 1 deletion(-)
 rename test/parallel/{test-zlib-failed-init.js => test-zlib-deflate-unsupported-windowbits.js} (83%)

diff --git a/lib/zlib.js b/lib/zlib.js
index 1b20e160052097..804e0acc3ddf32 100644
--- a/lib/zlib.js
+++ b/lib/zlib.js
@@ -193,6 +193,10 @@ class Zlib extends Transform {
           opts.windowBits > constants.Z_MAX_WINDOWBITS) {
         throw new RangeError('Invalid windowBits: ' + opts.windowBits);
       }
+      if (mode === constants.DEFLATERAW &&
+          opts.windowBits === 8) {
+        throw new RangeError('Unsupported windowBits for DeflateRaw: 8');
+      }
     }
 
     if (opts.level) {
diff --git a/test/parallel/test-zlib-failed-init.js b/test/parallel/test-zlib-deflate-unsupported-windowbits.js
similarity index 83%
rename from test/parallel/test-zlib-failed-init.js
rename to test/parallel/test-zlib-deflate-unsupported-windowbits.js
index afc2c82ddfca8e..96d95aca71c688 100644
--- a/test/parallel/test-zlib-failed-init.js
+++ b/test/parallel/test-zlib-deflate-unsupported-windowbits.js
@@ -10,4 +10,4 @@ const zlib = require('zlib');
 // (http://zlib.net/manual.html#Advanced)
 assert.throws(() => {
   zlib.createDeflateRaw({ windowBits: 8 });
-}, /^Error: Init error$/);
+}, /^RangeError: Unsupported windowBits for DeflateRaw: 8$/);