From a5aa7c17138ba811324526c1178f6a5b4a094acb Mon Sep 17 00:00:00 2001
From: James M Snell <jasnell@gmail.com>
Date: Mon, 7 Mar 2016 12:32:54 -0800
Subject: [PATCH] test: expand test case for unknown file open flags

PR-URL: https://github.com/nodejs/node/pull/5590
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Myles Borins <myles.borins@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
---
 test/parallel/test-fs-open-flags.js | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/test/parallel/test-fs-open-flags.js b/test/parallel/test-fs-open-flags.js
index 16b3d35cae..cf451b4f8d 100644
--- a/test/parallel/test-fs-open-flags.js
+++ b/test/parallel/test-fs-open-flags.js
@@ -34,3 +34,18 @@ assert.equal(fs._stringToFlags('xa+'), O_APPEND | O_CREAT | O_RDWR | O_EXCL);
   .forEach(function(flags) {
     assert.throws(function() { fs._stringToFlags(flags); });
   });
+
+assert.throws(
+  () => fs._stringToFlags({}),
+  /Unknown file open flag: \[object Object\]/
+);
+
+assert.throws(
+  () => fs._stringToFlags(true),
+  /Unknown file open flag: true/
+);
+
+assert.throws(
+  () => fs._stringToFlags(null),
+  /Unknown file open flag: null/
+);