1 files changed, 20 insertions, 0 deletions
diff --git a/js/src/tests/non262/extensions/clone-bigint.js b/js/src/tests/non262/extensions/clone-bigint.js
new file mode 100644
index 0000000000..a40bbed8f4
--- /dev/null
+++ b/js/src/tests/non262/extensions/clone-bigint.js
@@ -0,0 +1,20 @@
+// |reftest| skip-if(!xulRuntime.shell)
+// -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+// Any copyright is dedicated to the Public Domain.
+// http://creativecommons.org/licenses/publicdomain/
+
+function testBigInt(b) {
+    var a = deserialize(serialize(b));
+    assertEq(typeof b, "bigint");
+    assertEq(typeof a, "bigint");
+    assertEq(a, b);
+}
+
+testBigInt(0n);
+testBigInt(-1n);
+testBigInt(1n);
+
+testBigInt(0xffffFFFFffffFFFFffffFFFFffffFFFFn);
+testBigInt(-0xffffFFFFffffFFFFffffFFFFffffFFFFn);
+
+reportCompare(0, 0, 'ok');