1 files changed, 44 insertions, 0 deletions
diff --git a/js/src/tests/non262/Tuple/from/iter-map-fn-return.js b/js/src/tests/non262/Tuple/from/iter-map-fn-return.js
new file mode 100644
index 0000000000..418439b255
--- /dev/null
+++ b/js/src/tests/non262/Tuple/from/iter-map-fn-return.js
@@ -0,0 +1,44 @@
+// |reftest| skip-if(!this.hasOwnProperty("Tuple"))
+var thisVals = [];
+var nextResult = {
+  done: false,
+  value: {}
+};
+var nextNextResult = {
+  done: false,
+  value: {}
+};
+var firstReturnVal = 1;
+var secondReturnVal = 2;
+var mapFn = function(value, idx) {
+  var returnVal = nextReturnVal;
+  nextReturnVal = nextNextReturnVal;
+  nextNextReturnVal = null;
+  return returnVal;
+};
+var nextReturnVal = firstReturnVal;
+var nextNextReturnVal = secondReturnVal;
+var items = {};
+var result;
+
+items[Symbol.iterator] = function() {
+  return {
+    next: function() {
+      var result = nextResult;
+      nextResult = nextNextResult;
+      nextNextResult = {
+        done: true
+      };
+
+      return result;
+    }
+  };
+};
+
+result = Tuple.from(items, mapFn);
+
+assertEq(result.length, 2);
+assertEq(result[0], firstReturnVal);
+assertEq(result[1], secondReturnVal);
+
+reportCompare(0, 0);