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-rw-r--r--js/src/tests/test262/language/optional-chaining/optional-expression.js29
1 files changed, 29 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/optional-chaining/optional-expression.js b/js/src/tests/test262/language/optional-chaining/optional-expression.js
new file mode 100644
index 0000000000..38cba72d21
--- /dev/null
+++ b/js/src/tests/test262/language/optional-chaining/optional-expression.js
@@ -0,0 +1,29 @@
+// 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 recursive optional expression
+info: |
+ Left-Hand-Side Expressions
+ OptionalExpression:
+ OptionalExpression OptionalChain
+features: [optional-chaining]
+---*/
+
+const obj = {
+ a: {
+ b: 22
+ }
+};
+
+function fn () {
+ return {};
+}
+
+// OptionalExpression (MemberExpression OptionalChain) OptionalChain
+assert.sameValue(22, obj?.a?.b);
+// OptionalExpression (CallExpression OptionalChain) OptionalChain
+assert.sameValue(undefined, fn()?.a?.b);
+
+reportCompare(0, 0);