1 files changed, 15 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Error/tostring-1.js b/js/src/tests/test262/built-ins/Error/tostring-1.js
new file mode 100644
index 0000000000..5b2279ca44
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Error/tostring-1.js
@@ -0,0 +1,15 @@
+// Copyright (C) 2020 Rick Waldron.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-object.prototype.tostring
+description: >
+    Else if O has an [[ErrorData]] internal slot, let builtinTag be "Error".
+---*/
+assert.sameValue(new Error().toString(), 'Error', 'new Error.toString() returns "Error"');
+
+Error.prototype.toString = Object.prototype.toString;
+assert.sameValue(new Error().toString(), '[object Error]', 'new Error.toString() returns "[object Error]" (Object.prototype.toString)');
+
+
+reportCompare(0, 0);