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. PR-URL: #23141 Reviewed-By: Colin Ihrig <[email protected]> Reviewed-By: Ruben Bridgewater <[email protected]> Reviewed-By: Luigi Pinca <[email protected]> Reviewed-By: James M Snell <[email protected]>
nodejs · Oct 17, 2018 · a29631b · a29631b
1 parent 59feb53
commit a29631b
Showing 1 changed file with 10 additions and 0 deletions.
diff --git 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 []'
+  }
+);