From a5b3c84fbd426b0d2c0c8894543d7a8a3a5e7814 Mon Sep 17 00:00:00 2001
From: Leonardo Balter <leonardo.balter@gmail.com>
Date: Thu, 7 Jan 2016 17:23:15 -0500
Subject: [PATCH] Add tests for Subclassing the built-in Symbol Object
---
.../Symbol/new-symbol-with-super-throws.js | 35 +++++++++++++++++++
.../Symbol/symbol-valid-as-extends-value.js | 16 +++++++++
2 files changed, 51 insertions(+)
create mode 100644 test/language/subclassing/Symbol/new-symbol-with-super-throws.js
create mode 100644 test/language/subclassing/Symbol/symbol-valid-as-extends-value.js
diff --git a/test/language/subclassing/Symbol/new-symbol-with-super-throws.js b/test/language/subclassing/Symbol/new-symbol-with-super-throws.js
new file mode 100644
index 0000000000..202079b2f3
--- /dev/null
+++ b/test/language/subclassing/Symbol/new-symbol-with-super-throws.js
@@ -0,0 +1,35 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 19.4.1
+description: Symbol subclass called with the new operator throws on super()
+info: >
+ 19.4.1 The Symbol Constructor
+
+ ...
+ The Symbol constructor is not intended to be used with the new operator or to
+ be subclassed. It may be used as the value of an extends clause of a class
+ definition but a super call to the Symbol constructor will cause an exception.
+
+ 19.4.1.1 Symbol ( [ description ] )
+
+ ...
+ 1. If NewTarget is not undefined, throw a TypeError exception.
+---*/
+
+class S1 extends Symbol {}
+
+assert.throws(TypeError, function() {
+ new S1();
+});
+
+class S2 extends Symbol {
+ constructor() {
+ super();
+ }
+}
+
+assert.throws(TypeError, function() {
+ new S2();
+});
+
diff --git a/test/language/subclassing/Symbol/symbol-valid-as-extends-value.js b/test/language/subclassing/Symbol/symbol-valid-as-extends-value.js
new file mode 100644
index 0000000000..d565efdcb4
--- /dev/null
+++ b/test/language/subclassing/Symbol/symbol-valid-as-extends-value.js
@@ -0,0 +1,16 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 19.4.1
+description: Symbol can be used as the value of an extends
+info: >
+ 19.4.1 The Symbol Constructor
+
+ ...
+ The Symbol constructor is not intended to be used with the new operator or to
+ be subclassed. It may be used as the value of an extends clause of a class
+ definition but a super call to the Symbol constructor will cause an exception.
+ ...
+---*/
+
+class S extends Symbol {}
--
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