1 files changed, 90 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/statements/for-await-of/async-gen-decl-dstr-array-elem-trlg-iter-list-nrml-close.js b/js/src/tests/test262/language/statements/for-await-of/async-gen-decl-dstr-array-elem-trlg-iter-list-nrml-close.js
new file mode 100644
index 0000000000..22d6c2c046
--- /dev/null
+++ b/js/src/tests/test262/language/statements/for-await-of/async-gen-decl-dstr-array-elem-trlg-iter-list-nrml-close.js
@@ -0,0 +1,90 @@
+// |reftest| async
+// This file was procedurally generated from the following sources:
+// - src/dstr-assignment-for-await/array-elem-trlg-iter-list-nrml-close.case
+// - src/dstr-assignment-for-await/async-generator/async-gen-decl.template
+/*---
+description: IteratorClose is invoked when evaluation of AssignmentElementList completes without exhausting the iterator (for-await-of statement in an async generator declaration)
+esid: sec-for-in-and-for-of-statements-runtime-semantics-labelledevaluation
+features: [Symbol.iterator, destructuring-binding, async-iteration]
+flags: [generated, async]
+info: |
+    IterationStatement :
+      for await ( LeftHandSideExpression of AssignmentExpression ) Statement
+
+    1. Let keyResult be the result of performing ? ForIn/OfHeadEvaluation(« »,
+       AssignmentExpression, iterate).
+    2. Return ? ForIn/OfBodyEvaluation(LeftHandSideExpression, Statement,
+       keyResult, assignment, labelSet).
+
+    13.7.5.13 Runtime Semantics: ForIn/OfBodyEvaluation
+
+    [...]
+    5. If destructuring is true and if lhsKind is assignment, then
+       a. Assert: lhs is a LeftHandSideExpression.
+       b. Let assignmentPattern be the parse of the source text corresponding to
+          lhs using AssignmentPattern as the goal symbol.
+    [...]
+
+    ArrayAssignmentPattern :
+        [ AssignmentElementList , Elisionopt AssignmentRestElementopt ]
+
+    [...]
+    2. Let iteratorRecord be Record {[[iterator]]: iterator, [[done]]: false}.
+    3. Let status be the result of performing
+       IteratorDestructuringAssignmentEvaluation of AssignmentElementList using
+       iteratorRecord as the argument.
+    4. If status is an abrupt completion, then
+       a. If iteratorRecord.[[done]] is false, return IteratorClose(iterator,
+          status).
+       b. Return Completion(status).
+
+    7.4.6 IteratorClose ( iterator, completion )
+
+    [...]
+    5. Let innerResult be Call(return, iterator, « »).
+    [...]
+
+---*/
+let nextCount = 0;
+let returnCount = 0;
+let thisValue = null;
+let args = null;
+let x;
+let iterator = {
+  next() {
+    nextCount += 1;
+    // Set an upper-bound to limit unnecessary iteration in non-conformant
+    // implementations
+    return { done: nextCount > 10 };
+  },
+  return() {
+    returnCount += 1;
+    thisValue = this;
+    args = arguments;
+    return {};
+  }
+};
+let iterable = {
+  [Symbol.iterator]() {
+    return iterator;
+  }
+};
+
+let iterCount = 0;
+async function * fn() {
+  for await ([ x , ] of [iterable]) {
+    assert.sameValue(nextCount, 1);
+    assert.sameValue(returnCount, 1);
+    assert.sameValue(thisValue, iterator, 'correct `this` value');
+    assert(!!args, 'arguments object provided');
+    assert.sameValue(args.length, 0, 'zero arguments specified');
+
+    iterCount += 1;
+  }
+}
+
+let iter = fn();
+
+iter.next()
+  .then(() => assert.sameValue(iterCount, 1, 'iteration occurred as expected'), $DONE)
+  .then($DONE, $DONE);