text: // This file was procedurally generated from the following sources:
  // - src/async-generators/yield-star-getiter-async-undefined-sync-get-abrupt.case
  // - src/async-generators/default/async-declaration.template
  /*---
  description: Abrupt completion while getting @@iterator after undefined @@asyncIterator (Async generator Function declaration)
  esid: prod-AsyncGeneratorDeclaration
  features: [Symbol.iterator, Symbol.asyncIterator, async-iteration]
  flags: [generated, async]
  info: |
      Async Generator Function Definitions
  
      AsyncGeneratorDeclaration:
        async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
          AsyncGeneratorBody }
  
  
      YieldExpression: yield * AssignmentExpression
  
      1. Let exprRef be the result of evaluating AssignmentExpression.
      2. Let value be ? GetValue(exprRef).
      3. Let generatorKind be ! GetGeneratorKind().
      4. Let iterator be ? GetIterator(value, generatorKind).
      ...
  
      GetIterator ( obj [ , hint ] )
  
      ...
      3. If hint is async,
        a. Set method to ? GetMethod(obj, @@asyncIterator).
        b. If method is undefined,
          i. Let syncMethod be ? GetMethod(obj, @@iterator).
      ...
  
      GetMethod ( V, P )
  
      ...
      2. Let func be ? GetV(V, P).
      ...
  
  ---*/
  var calls = 0;
  var reason = {};
  var obj = {
    get [Symbol.iterator]() {
      throw reason;
    },
    get [Symbol.asyncIterator]() {
      calls += 1;
      return undefined;
    }
  };
  
  
  
  var callCount = 0;
  
  async function *gen() {
    callCount += 1;
    yield* obj;
      throw new Test262Error('abrupt completion closes iter');
  
  }
  
  var iter = gen();
  
  iter.next().then(() => {
    throw new Test262Error('Promise incorrectly fulfilled.');
  }, v => {
    assert.sameValue(v, reason, 'reject reason');
    assert.sameValue(calls, 1);
  
    iter.next().then(({ done, value }) => {
      assert.sameValue(done, true, 'the iterator is completed');
      assert.sameValue(value, undefined, 'value is undefined');
    }).then($DONE, $DONE);
  }).catch($DONE);
  
  assert.sameValue(callCount, 1);
  