Add optional chaining tests

Change-Id: Ia87313a2756dfbc3d90128ac77cd4dc6c8c137df
Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>

1 files changed, 22 insertions, 0 deletions

diff --git a/test/language/expressions/optional-chaining/early-errors-tail-position-null-op-template-string.js b/test/language/expressions/optional-chaining/early-errors-tail-position-null-op-template-string.js
new file mode 100644
index 000000000..1bf4f43cc
--- /dev/null
+++ b/test/language/expressions/optional-chaining/early-errors-tail-position-null-op-template-string.js
@@ -0,0 +1,22 @@
+// Copyright 2020 Salesforce.com, Inc. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: prod-OptionalExpression
+description: >
+  template string passed to tail position of optional chain
+info: |
+  Static Semantics: Early Errors
+    OptionalChain:
+      ?.TemplateLiteral
+      OptionalChain TemplateLiteral
+
+  It is a Syntax Error if any code matches this production.
+features: [optional-chaining]
+negative:
+  type: SyntaxError
+  phase: parse
+---*/
+
+$DONOTEVALUATE();
+
+null?.`hello`;