1 files changed, 87 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/statements/class/elements/async-gen-private-method/yield-promise-reject-next-for-await-of-sync-iterator.js b/js/src/tests/test262/language/statements/class/elements/async-gen-private-method/yield-promise-reject-next-for-await-of-sync-iterator.js
new file mode 100644
index 0000000000..50f8910ce2
--- /dev/null
+++ b/js/src/tests/test262/language/statements/class/elements/async-gen-private-method/yield-promise-reject-next-for-await-of-sync-iterator.js
@@ -0,0 +1,87 @@
+// |reftest| async
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-promise-reject-next-for-await-of-sync-iterator.case
+// - src/async-generators/default/async-class-decl-private-method.template
+/*---
+description: yield Promise.reject(value) in for-await-of is treated as throw value (Async Generator method as a ClassDeclaration element)
+esid: prod-AsyncGeneratorPrivateMethod
+features: [async-iteration, class-methods-private]
+flags: [generated, async]
+info: |
+    ClassElement :
+      PrivateMethodDefinition
+
+    MethodDefinition :
+      AsyncGeneratorMethod
+
+    Async Generator Function Definitions
+
+    AsyncGeneratorMethod :
+      async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+
+---*/
+let error = new Error();
+let iterable = [
+  Promise.reject(error),
+  "unreachable"
+];
+
+
+var callCount = 0;
+
+class C {
+    async *#gen() {
+        callCount += 1;
+        for await (let value of iterable) {
+          yield value;
+        }
+    }
+    get gen() { return this.#gen; }
+}
+
+const c = new C();
+
+// Test the private fields do not appear as properties before set to value
+assert(
+  !Object.prototype.hasOwnProperty.call(C.prototype, "#gen"),
+  "#gen does not appear as an own property on C prototype"
+);
+assert(
+  !Object.prototype.hasOwnProperty.call(C, "#gen"),
+  "#gen does not appear as an own property on C constructor"
+);
+assert(
+  !Object.prototype.hasOwnProperty.call(c, "#gen"),
+  "#gen does not appear as an own property on C instance"
+);
+
+var iter = c.gen();
+
+iter.next().then(() => {
+  throw new Test262Error("Promise incorrectly resolved.");
+}, rejectValue => {
+  // yield Promise.reject(error);
+  assert.sameValue(rejectValue, error);
+
+  iter.next().then(({done, value}) => {
+    // iter is closed now.
+    assert.sameValue(done, true, "The value of IteratorResult.done is `true`");
+    assert.sameValue(value, undefined, "The value of IteratorResult.value is `undefined`");
+  }).then($DONE, $DONE);
+}).catch($DONE);
+
+assert.sameValue(callCount, 1);
+
+// Test the private fields do not appear as properties after set to value
+assert(
+  !Object.prototype.hasOwnProperty.call(C.prototype, "#gen"),
+  "#gen does not appear as an own property on C prototype"
+);
+assert(
+  !Object.prototype.hasOwnProperty.call(C, "#gen"),
+  "#gen does not appear as an own property on C constructor"
+);
+assert(
+  !Object.prototype.hasOwnProperty.call(c, "#gen"),
+  "#gen does not appear as an own property on C instance"
+);