From fea3070ec46d8d231b95ff100170d16306814ee8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=D0=A1=D0=BA=D0=BE=D0=B2=D0=BE=D1=80=D0=BE=D0=B4=D0=B0=20?=
 =?UTF-8?q?=D0=9D=D0=B8=D0=BA=D0=B8=D1=82=D0=B0=20=D0=90=D0=BD=D0=B4=D1=80?=
 =?UTF-8?q?=D0=B5=D0=B5=D0=B2=D0=B8=D1=87?= <chalkerx@gmail.com>
Date: Wed, 1 Jun 2016 17:32:02 +0300
Subject: [PATCH] test: add buffer testcase for resetting kZeroFill

Test failed or zero-sized Buffer allocations not affecting subsequent
creations of typed arrays.

PR-URL: https://github.com/nodejs/node/pull/7093
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Trevor Norris <trev.norris@gmail.com>
---
 test/parallel/test-buffer.js | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/test/parallel/test-buffer.js b/test/parallel/test-buffer.js
index 02f9443696..f773da321d 100644
--- a/test/parallel/test-buffer.js
+++ b/test/parallel/test-buffer.js
@@ -1476,3 +1476,26 @@ assert.equal(SlowBuffer.prototype.offset, undefined);
   // Check pool offset after that by trying to write string into the pool.
   assert.doesNotThrow(() => Buffer.from('abc'));
 }
+
+
+// Test failed or zero-sized Buffer allocations not affecting typed arrays
+{
+  const zeroArray = new Uint32Array(10).fill(0);
+  const sizes = [1e10, 0, 0.1, -1, 'a', undefined, null, NaN];
+  const allocators = [
+    Buffer,
+    SlowBuffer,
+    Buffer.alloc,
+    Buffer.allocUnsafe,
+    Buffer.allocUnsafeSlow
+  ];
+  for (const allocator of allocators) {
+    for (const size of sizes) {
+      try {
+        allocator(size);
+      } catch (e) {
+        assert.deepStrictEqual(new Uint32Array(10), zeroArray);
+      }
+    }
+  }
+}