1 files changed, 43 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/statements/async-function/dflt-params-rest.js b/js/src/tests/test262/language/statements/async-function/dflt-params-rest.js
new file mode 100644
index 0000000000..5e8a1926b4
--- /dev/null
+++ b/js/src/tests/test262/language/statements/async-function/dflt-params-rest.js
@@ -0,0 +1,43 @@
+// |reftest| error:SyntaxError
+// This file was procedurally generated from the following sources:
+// - src/function-forms/dflt-params-rest.case
+// - src/function-forms/syntax/async-func-decl.template
+/*---
+description: RestParameter does not support an initializer (async function declaration)
+esid: sec-async-function-definitions
+features: [default-parameters, async-functions]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    14.6 Async Function Definitions
+
+    AsyncFunctionDeclaration :
+      async function BindingIdentifier ( FormalParameters ) { AsyncFunctionBody }
+
+
+    14.1 Function Definitions
+
+    Syntax
+
+    FunctionRestParameter[Yield] :
+
+      BindingRestElement[?Yield]
+
+    13.3.3 Destructuring Binding Patterns
+
+    Syntax
+
+    BindingRestElement[Yield] :
+
+      ...BindingIdentifier[?Yield]
+      ...BindingPattern[?Yield]
+
+---*/
+$DONOTEVALUATE();
+
+
+async function f(...x = []) {
+  
+}