1 files changed, 44 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/statements/async-function/dflt-params-ref-later.js b/js/src/tests/test262/language/statements/async-function/dflt-params-ref-later.js
new file mode 100644
index 0000000000..5ae817357f
--- /dev/null
+++ b/js/src/tests/test262/language/statements/async-function/dflt-params-ref-later.js
@@ -0,0 +1,44 @@
+// |reftest| async
+// This file was procedurally generated from the following sources:
+// - src/function-forms/dflt-params-ref-later.case
+// - src/function-forms/error/async-func-decl.template
+/*---
+description: Referencing a parameter that occurs later in the ParameterList (async function declaration)
+esid: sec-async-function-definitions
+features: [default-parameters, async-functions]
+flags: [generated, async]
+info: |
+    14.6 Async Function Definitions
+
+    AsyncFunctionDeclaration :
+      async function BindingIdentifier ( FormalParameters ) { AsyncFunctionBody }
+
+
+    14.1.19 Runtime Semantics: IteratorBindingInitialization
+
+    FormalsList : FormalsList , FormalParameter
+
+    1. Let status be the result of performing IteratorBindingInitialization for
+       FormalsList using iteratorRecord and environment as the arguments.
+    2. ReturnIfAbrupt(status).
+    3. Return the result of performing IteratorBindingInitialization for
+       FormalParameter using iteratorRecord and environment as the arguments.
+
+---*/
+var x = 0;
+
+
+var callCount = 0;
+async function f(x = y, y) {
+  
+  callCount = callCount + 1;
+}
+
+f()
+  .then(_ => {
+    throw new Test262Error('function should not be resolved');
+  }, error => assert.sameValue(error.constructor, ReferenceError))
+  .then(() => {
+    assert.sameValue(callCount, 0, 'function body is not evaluated');
+  }, $DONE)
+  .then($DONE, $DONE);