1 files changed, 75 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/statements/class/definition/prototype-wiring.js b/js/src/tests/test262/language/statements/class/definition/prototype-wiring.js
new file mode 100644
index 0000000000..608bde0586
--- /dev/null
+++ b/js/src/tests/test262/language/statements/class/definition/prototype-wiring.js
@@ -0,0 +1,75 @@
+// Copyright (C) 2014 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 14.5
+description: >
+    class prototype wiring
+---*/
+
+class Base {
+  constructor(x) {
+    this.foobar = x;
+  }
+}
+
+class Subclass extends Base {
+  constructor(x) {
+    super(x);
+  }
+}
+
+var s = new Subclass(1);
+assert.sameValue(s.foobar, 1, "The value of `s.foobar` is `1`");
+assert.sameValue(
+  Object.getPrototypeOf(s),
+  Subclass.prototype,
+  "`Object.getPrototypeOf(s)` returns `Subclass.prototype`"
+);
+
+var s1 = new Subclass(1, 2);
+assert.sameValue(s1.foobar, 1, "The value of `s1.foobar` is `1`");
+assert.sameValue(
+  Object.getPrototypeOf(s1) === Subclass.prototype,
+  true,
+  "The result of `Object.getPrototypeOf(s1) === Subclass.prototype` is `true`"
+);
+
+var s2 = new Subclass();
+assert.sameValue(s2.foobar, undefined, "The value of `s2.foobar` is `undefined`");
+assert.sameValue(
+  Object.getPrototypeOf(s2),
+  Subclass.prototype,
+  "`Object.getPrototypeOf(s2)` returns `Subclass.prototype`"
+);
+assert.throws(TypeError, function() { Subclass(1); });
+assert.throws(TypeError, function() { Subclass(1,2,3,4); });
+
+class Subclass2 extends Subclass {
+  constructor() {
+    super(5, 6, 7);
+  }
+}
+
+var ss2 = new Subclass2();
+assert.sameValue(ss2.foobar, 5, "The value of `ss2.foobar` is `5`");
+assert.sameValue(
+  Object.getPrototypeOf(ss2),
+  Subclass2.prototype,
+  "`Object.getPrototypeOf(ss2)` returns `Subclass2.prototype`"
+);
+
+class Subclass3 extends Base {
+  constructor(x, y) {
+    super(x + y);
+  }
+}
+
+var ss3 = new Subclass3(27,42-27);
+assert.sameValue(ss3.foobar, 42, "The value of `ss3.foobar` is `42`");
+assert.sameValue(
+  Object.getPrototypeOf(ss3),
+  Subclass3.prototype,
+  "`Object.getPrototypeOf(ss3)` returns `Subclass3.prototype`"
+);
+
+reportCompare(0, 0);