1 files changed, 48 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Array/from/iter-set-length.js b/js/src/tests/test262/built-ins/Array/from/iter-set-length.js
new file mode 100644
index 0000000000..341e0b4a14
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Array/from/iter-set-length.js
@@ -0,0 +1,48 @@
+// 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.from
+description: Setting length of object (traversed via iterator)
+info: |
+    [...]
+    6. If usingIterator is not undefined, then
+       [...]
+       g. Repeat
+          [...]
+          iv. If next is false, then
+              1. Let setStatus be Set(A, "length", k, true).
+              2. ReturnIfAbrupt(setStatus).
+              3. Return A.
+features: [Symbol.iterator]
+---*/
+
+var items = {};
+var result, nextIterResult, lastIterResult;
+items[Symbol.iterator] = function() {
+  return {
+    next: function() {
+      var result = nextIterResult;
+      nextIterResult = lastIterResult;
+      return result;
+    }
+  };
+};
+
+nextIterResult = lastIterResult = {
+  done: true
+};
+result = Array.from(items);
+
+assert.sameValue(result.length, 0, 'The value of result.length is expected to be 0');
+
+nextIterResult = {
+  done: false
+};
+lastIterResult = {
+  done: true
+};
+result = Array.from(items);
+
+assert.sameValue(result.length, 1, 'The value of result.length is expected to be 1');
+
+reportCompare(0, 0);