JSTests/test262/test/built-ins/TypedArray/prototype/keys/BigInt/return-itor.js

// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-%typedarray%.prototype.keys
description: Return an iterator for the keys.
info: |
  22.2.3.16 %TypedArray%.prototype.keys ( )

  ...
  3. Return CreateArrayIterator(O, "key").
includes: [testBigIntTypedArray.js]
features: [BigInt, TypedArray]
---*/

var sample = [0n, 42n, 64n];

testWithBigIntTypedArrayConstructors(function(TA) {
  var typedArray = new TA(sample);
  var itor = typedArray.keys();

  var next = itor.next();
  assert.sameValue(next.value, 0);
  assert.sameValue(next.done, false);

  next = itor.next();
  assert.sameValue(next.value, 1);
  assert.sameValue(next.done, false);

  next = itor.next();
  assert.sameValue(next.value, 2);
  assert.sameValue(next.done, false);

  next = itor.next();
  assert.sameValue(next.value, undefined);
  assert.sameValue(next.done, true);
});