1 files changed, 50 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/TypedArrayConstructors/from/BigInt/mapfn-arguments.js b/js/src/tests/test262/built-ins/TypedArrayConstructors/from/BigInt/mapfn-arguments.js
new file mode 100644
index 0000000000..9f4de52fb4
--- /dev/null
+++ b/js/src/tests/test262/built-ins/TypedArrayConstructors/from/BigInt/mapfn-arguments.js
@@ -0,0 +1,50 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-%typedarray%.from
+description: >
+  Assert mapfn arguments
+info: |
+  22.2.2.1 %TypedArray%.from ( source [ , mapfn [ , thisArg ] ] )
+
+  ...
+  10. Repeat, while k < len
+    ...
+    c. If mapping is true, then
+      i. Let mappedValue be ? Call(mapfn, T, « kValue, k »).
+  ...
+includes: [testBigIntTypedArray.js]
+features: [BigInt, TypedArray]
+---*/
+
+var source = [42, 43, 44];
+
+testWithBigIntTypedArrayConstructors(function(TA) {
+  var results = [];
+  var mapfn = function(kValue, k) {
+    results.push({
+      kValue: kValue,
+      k: k,
+      argsLength: arguments.length
+    });
+    return 0n;
+  };
+
+  TA.from(source, mapfn);
+
+  assert.sameValue(results.length, 3);
+
+  assert.sameValue(results[0].kValue, 42);
+  assert.sameValue(results[0].k, 0);
+  assert.sameValue(results[0].argsLength, 2);
+
+  assert.sameValue(results[1].kValue, 43);
+  assert.sameValue(results[1].k, 1);
+  assert.sameValue(results[1].argsLength, 2);
+
+  assert.sameValue(results[2].kValue, 44);
+  assert.sameValue(results[2].k, 2);
+  assert.sameValue(results[2].argsLength, 2);
+});
+
+reportCompare(0, 0);