Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 27 insertions, 0 deletions

diff --git a/js/src/tests/test262/built-ins/JSON/stringify/value-bigint-tojson-receiver.js b/js/src/tests/test262/built-ins/JSON/stringify/value-bigint-tojson-receiver.js
new file mode 100644
index 0000000000..3b5eb58411
--- /dev/null
+++ b/js/src/tests/test262/built-ins/JSON/stringify/value-bigint-tojson-receiver.js
@@ -0,0 +1,27 @@
+// Copyright 2019 Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+// Test case written by André Bargull.
+
+/*---
+esid: sec-serializejsonproperty
+description: toJSON method called with BigInt as receiver
+features: [BigInt]
+---*/
+
+assert.throws(TypeError, () => JSON.stringify(1n),
+              "toString throws for BigInt object");
+
+// The BigInt proposal changes the SerializeJSONProperty algorithm to
+// specifically allow passing BigInt objects as receivers for the toJSON
+// method.
+Object.defineProperty(BigInt.prototype, "toJSON", {
+    get() {
+        "use strict";
+        return () => typeof this;
+    }
+});
+
+assert.sameValue(JSON.stringify(1n), "\"bigint\"",
+                 "BigInt toJSON method called with value as receiver");
+
+reportCompare(0, 0);