zlib: revert back to Functions

Using ES6 Classes broke userland code. Revert back to functions.

PR-URL: https://github.com/nodejs/node/pull/13374
Fixes: https://github.com/nodejs/node/issues/13358
Ref: https://github.com/nodejs/node/pull/13370
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: Daijiro Wachi <daijiro.wachi@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>

1 files changed, 27 insertions, 0 deletions

diff --git a/test/parallel/test-zlib-deflate-raw-inherits.js b/test/parallel/test-zlib-deflate-raw-inherits.js
new file mode 100644
index 0000000000..a24726a3fb
--- /dev/null
+++ b/test/parallel/test-zlib-deflate-raw-inherits.js
@@ -0,0 +1,27 @@
+'use strict';
+
+require('../common');
+const { DeflateRaw } = require('zlib');
+const { inherits } = require('util');
+const { Readable } = require('stream');
+
+// validates that zlib.DeflateRaw can be inherited
+// with util.inherits
+
+function NotInitialized(options) {
+  DeflateRaw.call(this, options);
+  this.prop = true;
+}
+inherits(NotInitialized, DeflateRaw);
+
+const dest = new NotInitialized();
+
+const read = new Readable({
+  read() {
+    this.push(Buffer.from('a test string'));
+    this.push(null);
+  }
+});
+
+read.pipe(dest);
+dest.resume();