1 files changed, 47 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/computed-property-names/to-name-side-effects/class.js b/js/src/tests/test262/language/computed-property-names/to-name-side-effects/class.js
new file mode 100644
index 0000000000..8d78ca0852
--- /dev/null
+++ b/js/src/tests/test262/language/computed-property-names/to-name-side-effects/class.js
@@ -0,0 +1,47 @@
+// Copyright (C) 2014 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 12.2.5
+description: >
+    to name, accessor side effects 3
+includes: [compareArray.js]
+---*/
+var counter = 0;
+var key1ToString = [];
+var key2ToString = [];
+var key1 = {
+  toString: function() {
+    key1ToString.push(counter);
+    counter += 1;
+    return 'b';
+  }
+};
+var key2 = {
+  toString: function() {
+    key2ToString.push(counter);
+    counter += 1;
+    return 'd';
+  }
+};
+class C {
+  a() { return 'A'; }
+  [key1]() { return 'B'; }
+  c() { return 'C'; }
+  [key2]() { return 'D'; }
+}
+
+assert.compareArray(key1ToString, [0], "order set for key1");
+assert.compareArray(key2ToString, [1], "order set for key2");
+
+assert.sameValue(counter, 2, "The value of `counter` is `2`");
+assert.sameValue(new C().a(), 'A', "`new C().a()` returns `'A'`. Defined as `a() { return 'A'; }`");
+assert.sameValue(new C().b(), 'B', "`new C().b()` returns `'B'`. Defined as `[key1]() { return 'B'; }`");
+assert.sameValue(new C().c(), 'C', "`new C().c()` returns `'C'`. Defined as `c() { return 'C'; }`");
+assert.sameValue(new C().d(), 'D', "`new C().d()` returns `'D'`. Defined as `[key2]() { return 'D'; }`");
+assert.sameValue(Object.keys(C.prototype).length, 0, "No enum keys from C.prototype");
+assert(
+  compareArray(Object.getOwnPropertyNames(C.prototype), ['constructor', 'a', 'b', 'c', 'd']),
+  "`compareArray(Object.getOwnPropertyNames(C.prototype), ['constructor', 'a', 'b', 'c', 'd'])` returns `true`"
+);
+
+reportCompare(0, 0);