zlib: do not leak on destroy

PR-URL: https://github.com/nodejs/node/pull/23734
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>

2 files changed, 23 insertions, 0 deletions

diff --git a/test/parallel/test-zlib-close-in-ondata.js b/test/parallel/test-zlib-close-in-ondata.js
new file mode 100644
index 0000000000..44d996311d
--- /dev/null
+++ b/test/parallel/test-zlib-close-in-ondata.js
@@ -0,0 +1,10 @@
+'use strict';
+
+const common = require('../common');
+const zlib = require('zlib');
+
+const ts = zlib.createGzip();
+const buf = Buffer.alloc(1024 * 1024 * 20);
+
+ts.on('data', common.mustCall(() => ts.close()));
+ts.end(buf);
diff --git a/test/parallel/test-zlib-destroy.js b/test/parallel/test-zlib-destroy.js
new file mode 100644
index 0000000000..d8eab42186
--- /dev/null
+++ b/test/parallel/test-zlib-destroy.js
@@ -0,0 +1,13 @@
+'use strict';
+
+require('../common');
+
+const assert = require('assert');
+const zlib = require('zlib');
+
+// verify that the zlib transform does clean up
+// the handle when calling destroy.
+
+const ts = zlib.createGzip();
+ts.destroy();
+assert.strictEqual(ts._handle, null);