1 files changed, 46 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/expressions/async-generator/dstr/obj-ptrn-id-init-fn-name-gen.js b/js/src/tests/test262/language/expressions/async-generator/dstr/obj-ptrn-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..af444cc6b4
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/async-generator/dstr/obj-ptrn-id-init-fn-name-gen.js
@@ -0,0 +1,46 @@
+// |reftest| async
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-gen.case
+// - src/dstr-binding/default/async-gen-func-expr.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (async generator function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+    AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+        AsyncGeneratorBody }
+
+        [...]
+        3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+           AsyncGeneratorBody, scope, strict).
+        [...]
+
+
+    13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+    SingleNameBinding : BindingIdentifier Initializeropt
+
+    [...]
+    6. If Initializer is present and v is undefined, then
+       [...]
+       d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+          i. Let hasNameProperty be HasOwnProperty(v, "name").
+          ii. ReturnIfAbrupt(hasNameProperty).
+          iii. If hasNameProperty is false, perform SetFunctionName(v,
+               bindingId).
+
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*({ gen = function* () {}, xGen = function* x() {} }) {
+  assert.sameValue(gen.name, 'gen');
+  assert.notSameValue(xGen.name, 'xGen');
+  callCount = callCount + 1;
+};
+
+f({}).next().then(() => {
+    assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);