From 3bf28b1b7b5bb0847e25aee27582bc1e05c55c65 Mon Sep 17 00:00:00 2001
From: shisama <cherrydog07@gmail.com>
Date: Fri, 28 Sep 2018 14:50:04 +0900
Subject: [PATCH] test: error when empty buffer is passed to fs.read()

Added tests to occur error when empty buffer is passed to fs.read()
to increase coverage.
---
 test/parallel/test-fs-read-empty-buffer.js | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/test/parallel/test-fs-read-empty-buffer.js b/test/parallel/test-fs-read-empty-buffer.js
index 840e52d60c7a97..34e418eac656bf 100644
--- a/test/parallel/test-fs-read-empty-buffer.js
+++ b/test/parallel/test-fs-read-empty-buffer.js
@@ -1,5 +1,6 @@
 'use strict';
 require('../common');
+const common = require('../common');
 const fixtures = require('../common/fixtures');
 const assert = require('assert');
 const fs = require('fs');
@@ -16,3 +17,12 @@ assert.throws(
     'Received Uint8Array []'
   }
 );
+
+assert.throws(
+  () => fs.read(fd, buffer, 0, 1, 0, common.mustNotCall()),
+  {
+    code: 'ERR_INVALID_ARG_VALUE',
+    message: 'The argument \'buffer\' is empty and cannot be written. ' +
+    'Received Uint8Array []'
+  }
+);