Adding upstream version 86.0.1.upstream/86.0.1upstream

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

1 files changed, 32 insertions, 0 deletions

diff --git a/js/src/tests/test262/built-ins/JSON/stringify/replacer-array-proxy.js b/js/src/tests/test262/built-ins/JSON/stringify/replacer-array-proxy.js
new file mode 100644
index 0000000000..02fe6deb93
--- /dev/null
+++ b/js/src/tests/test262/built-ins/JSON/stringify/replacer-array-proxy.js
@@ -0,0 +1,32 @@
+// Copyright (C) 2019 Aleksey Shvayka. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-json.stringify
+description: >
+  Array proxy replacer serves as a filter of object keys.
+info: |
+  JSON.stringify ( value [ , replacer [ , space ] ] )
+
+  [...]
+  4. If Type(replacer) is Object, then
+     a. If IsCallable(replacer) is true, then
+        i. Let ReplacerFunction be replacer.
+     b. Else,
+        i. Let isArray be ? IsArray(replacer).
+
+  IsArray ( argument )
+
+  [...]
+  3. If argument is a Proxy exotic object, then
+     a. If argument.[[ProxyHandler]] is null, throw a TypeError exception.
+     b. Let target be argument.[[ProxyTarget]].
+     c. Return ? IsArray(target).
+features: [Proxy]
+---*/
+
+var replacer = new Proxy(['b'], {});
+
+assert.sameValue(JSON.stringify({a: 1, b: 2}, replacer), '{"b":2}');
+assert.sameValue(JSON.stringify({b: {a: 3, b: 4}}, replacer), '{"b":{"b":4}}');
+
+reportCompare(0, 0);