1 files changed, 30 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/TypedArrayConstructors/from/BigInt/new-instance-using-custom-ctor.js b/js/src/tests/test262/built-ins/TypedArrayConstructors/from/BigInt/new-instance-using-custom-ctor.js
new file mode 100644
index 0000000000..5441898a3c
--- /dev/null
+++ b/js/src/tests/test262/built-ins/TypedArrayConstructors/from/BigInt/new-instance-using-custom-ctor.js
@@ -0,0 +1,30 @@
+// 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: >
+  Return a new TypedArray using a custom Constructor
+includes: [testBigIntTypedArray.js]
+features: [BigInt, TypedArray]
+---*/
+
+testWithBigIntTypedArrayConstructors(function(TA) {
+  var called = 0;
+
+  var ctor = function(len) {
+    assert.sameValue(arguments.length, 1);
+    called++;
+    return new TA(len);
+  };
+
+  var result = TA.from.call(ctor, [42n, 43n, 42n]);
+  assert.sameValue(result.length, 3);
+  assert.sameValue(result[0], 42n);
+  assert.sameValue(result[1], 43n);
+  assert.sameValue(result[2], 42n);
+  assert.sameValue(result.constructor, TA);
+  assert.sameValue(Object.getPrototypeOf(result), TA.prototype);
+  assert.sameValue(called, 1);
+});
+
+reportCompare(0, 0);