1 files changed, 47 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/statements/async-generator/dstr/dflt-ary-ptrn-elem-id-iter-step-err.js b/js/src/tests/test262/language/statements/async-generator/dstr/dflt-ary-ptrn-elem-id-iter-step-err.js
new file mode 100644
index 0000000000..8c48978994
--- /dev/null
+++ b/js/src/tests/test262/language/statements/async-generator/dstr/dflt-ary-ptrn-elem-id-iter-step-err.js
@@ -0,0 +1,47 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-step-err.case
+// - src/dstr-binding/error/async-gen-func-decl-dflt.template
+/*---
+description: Error forwarding when IteratorStep returns an abrupt completion (async generator function declaration (default parameter))
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [Symbol.iterator, async-iteration]
+flags: [generated]
+info: |
+    AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+        ( FormalParameters ) { AsyncGeneratorBody }
+
+        [...]
+        3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+            scope, strict).
+        [...]
+
+    13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+    SingleNameBinding : BindingIdentifier Initializeropt
+
+    [...]
+    4. If iteratorRecord.[[done]] is false, then
+       a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+       b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+       c. ReturnIfAbrupt(next).
+
+---*/
+var g = {};
+g[Symbol.iterator] = function() {
+  return {
+    next: function() {
+      throw new Test262Error();
+    }
+  };
+};
+
+
+async function* f([x] = g) {
+  
+};
+
+assert.throws(Test262Error, function() {
+  f();
+});
+
+reportCompare(0, 0);