From 87398ac935fe7c20db707f4a445e68999e225f25 Mon Sep 17 00:00:00 2001
From: Alexey Shvayka <shvaikalesh@gmail.com>
Date: Sat, 5 Sep 2020 01:44:24 +0300
Subject: [PATCH] Test Error.prototype.toString called as top-level function

---
 .../prototype/toString/called-as-function.js  | 32 +++++++++++++++++++
 1 file changed, 32 insertions(+)
 create mode 100644 test/built-ins/Error/prototype/toString/called-as-function.js

diff --git a/test/built-ins/Error/prototype/toString/called-as-function.js b/test/built-ins/Error/prototype/toString/called-as-function.js
new file mode 100644
index 0000000000..72c930449a
--- /dev/null
+++ b/test/built-ins/Error/prototype/toString/called-as-function.js
@@ -0,0 +1,32 @@
+// Copyright (C) 2020 Alexey Shvayka. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-error.prototype.tostring
+description: >
+    `this` value is resolved using strict mode semantics,
+    throwing TypeError if called as top-level function.
+info: |
+    Error.prototype.toString ( )
+
+    1. Let O be the this value.
+    2. If Type(O) is not Object, throw a TypeError exception.
+
+    ToObject ( argument )
+
+    Argument Type: Undefined
+    Result: Throw a TypeError exception.
+---*/
+
+["name", "message"].forEach(function(key) {
+    Object.defineProperty(this, key, {
+        get: function() {
+            throw new Test262Error(key + " lookup should not be performed");
+        },
+    });
+}, this);
+
+var toString = Error.prototype.toString;
+assert.throws(TypeError, function() {
+    toString();
+});