1 files changed, 87 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/statements/class/elements/async-gen-private-method/yield-spread-arr-single.js b/js/src/tests/test262/language/statements/class/elements/async-gen-private-method/yield-spread-arr-single.js
new file mode 100644
index 0000000000..760230055e
--- /dev/null
+++ b/js/src/tests/test262/language/statements/class/elements/async-gen-private-method/yield-spread-arr-single.js
@@ -0,0 +1,87 @@
+// |reftest| async
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-spread-arr-single.case
+// - src/async-generators/default/async-class-decl-private-method.template
+/*---
+description: Use yield value in a array spread position (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 }
+
+
+    Array Initializer
+
+    SpreadElement[Yield, Await]:
+      ...AssignmentExpression[+In, ?Yield, ?Await]
+
+---*/
+var arr = ['a', 'b', 'c'];
+
+
+var callCount = 0;
+
+class C {
+    async *#gen() {
+        callCount += 1;
+        yield [...yield];
+    }
+    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(false);
+var item = iter.next(arr);
+
+item.then(({ done, value }) => {
+  assert.notSameValue(value, arr, 'value is a new array');
+  assert(Array.isArray(value), 'value is an Array exotic object');
+  assert.sameValue(value.length, 3)
+  assert.sameValue(value[0], 'a');
+  assert.sameValue(value[1], 'b');
+  assert.sameValue(value[2], 'c');
+  assert.sameValue(done, false);
+}).then($DONE, $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"
+);