1 files changed, 54 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/statements/class/subclass/binding.js b/js/src/tests/test262/language/statements/class/subclass/binding.js
new file mode 100644
index 0000000000..cd22c23d35
--- /dev/null
+++ b/js/src/tests/test262/language/statements/class/subclass/binding.js
@@ -0,0 +1,54 @@
+// 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 subclass binding
+---*/
+class Base {
+  constructor(x, y) {
+    this.x = x;
+    this.y = y;
+  }
+}
+
+var obj = {};
+class Subclass extends Base {
+  constructor(x, y) {
+    super(x,y);
+    assert.sameValue(this !== obj, true, "The result of `this !== obj` is `true`");
+  }
+}
+
+var f = Subclass.bind(obj);
+assert.throws(TypeError, function () { f(1, 2); });
+var s = new f(1, 2);
+assert.sameValue(s.x, 1, "The value of `s.x` is `1`");
+assert.sameValue(s.y, 2, "The value of `s.y` is `2`");
+assert.sameValue(
+  Object.getPrototypeOf(s),
+  Subclass.prototype,
+  "`Object.getPrototypeOf(s)` returns `Subclass.prototype`"
+);
+
+var s1 = new f(1);
+assert.sameValue(s1.x, 1, "The value of `s1.x` is `1`");
+assert.sameValue(s1.y, undefined, "The value of `s1.y` is `undefined`");
+assert.sameValue(
+  Object.getPrototypeOf(s1),
+  Subclass.prototype,
+  "`Object.getPrototypeOf(s1)` returns `Subclass.prototype`"
+);
+
+var g = Subclass.bind(obj, 1);
+assert.throws(TypeError, function () { g(8); });
+var s2 = new g(8);
+assert.sameValue(s2.x, 1, "The value of `s2.x` is `1`");
+assert.sameValue(s2.y, 8, "The value of `s2.y` is `8`");
+assert.sameValue(
+  Object.getPrototypeOf(s),
+  Subclass.prototype,
+  "`Object.getPrototypeOf(s)` returns `Subclass.prototype`"
+);
+
+reportCompare(0, 0);