1 files changed, 41 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Array/of/construct-this-with-the-number-of-arguments.js b/js/src/tests/test262/built-ins/Array/of/construct-this-with-the-number-of-arguments.js
new file mode 100644
index 0000000000..7a4a987f04
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Array/of/construct-this-with-the-number-of-arguments.js
@@ -0,0 +1,41 @@
+// Copyright (C) 2015 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-array.of
+es6id: 22.1.2.3
+description: Passes the number of arguments to the constructor it calls.
+info: |
+  Array.of ( ...items )
+
+  1. Let len be the actual number of arguments passed to this function.
+  2. Let items be the List of arguments passed to this function.
+  3. Let C be the this value.
+  4. If IsConstructor(C) is true, then
+    a. Let A be Construct(C, «len»).
+  ...
+---*/
+
+var len;
+var hits = 0;
+
+function C(length) {
+  len = length;
+  hits++;
+}
+
+Array.of.call(C);
+assert.sameValue(len, 0, '`Array.of.call(C);` called `new C(0)`');
+assert.sameValue(hits, 1, 'Called constructor once per call');
+
+Array.of.call(C, 'a', 'b')
+assert.sameValue(len, 2, '`Array.of.call(C, "a", "b"));` called `new C(2)`');
+assert.sameValue(hits, 2, 'Called constructor once per call');
+
+Array.of.call(C, false, null, undefined);
+assert.sameValue(
+  len, 3,
+  '`Array.of.call(C, false, null, undefined);` called `new C(3)`'
+);
+assert.sameValue(hits, 3, 'Called constructor once per call');
+
+reportCompare(0, 0);