1 files changed, 28 insertions, 0 deletions
diff --git a/js/src/tests/non262/extensions/uneval/regress-254375.js b/js/src/tests/non262/extensions/uneval/regress-254375.js
new file mode 100644
index 0000000000..4640d3e1c8
--- /dev/null
+++ b/js/src/tests/non262/extensions/uneval/regress-254375.js
@@ -0,0 +1,28 @@
+// |reftest| skip-if(!this.uneval)
+
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 254375;
+var summary = 'Object.toSource for negative number property names';
+var actual = '';
+var expect = '';
+
+printBugNumber(BUGNUMBER);
+printStatus (summary);
+
+  try
+  {
+    expect = 'no error';
+    eval(uneval({'-1':true}));
+    actual = 'no error';
+  }
+  catch(e)
+  {
+    actual = 'error';
+  }
+
+  reportCompare(expect, actual, summary);