Adding upstream version 86.0.1.upstream/86.0.1upstream

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

1 files changed, 21 insertions, 0 deletions

diff --git a/js/src/tests/test262/language/expressions/optional-chaining/member-expression-async-this.js b/js/src/tests/test262/language/expressions/optional-chaining/member-expression-async-this.js
new file mode 100644
index 0000000000..5de87fa9bb
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/optional-chaining/member-expression-async-this.js
@@ -0,0 +1,21 @@
+// |reftest| async
+// Copyright 2019 Google, Inc.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: prod-OptionalExpression
+description: >
+  optional chain on member expression in async context
+info: |
+  Left-Hand-Side Expressions
+    OptionalExpression:
+      MemberExpression [PrimaryExpression this] OptionalChain
+features: [optional-chaining]
+flags: [async]
+---*/
+
+async function thisFn() {
+  return await this?.a
+}
+thisFn.call({a: Promise.resolve(33)}).then(function(arg) {
+  assert.sameValue(33, arg);
+}).then($DONE, $DONE);