JSTests/test262/test/built-ins/TypedArray/prototype/some/BigInt/values-are-not-cached.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.some
description: >
  Integer indexed values are not cached before iteration
info: |
  22.2.3.25 %TypedArray%.prototype.some ( callbackfn [ , thisArg ] )

  %TypedArray%.prototype.some is a distinct function that implements the same
  algorithm as Array.prototype.some as defined in 22.1.3.24 except that the this
  object's [[ArrayLength]] internal slot is accessed in place of performing a
  [[Get]] of "length".

  22.1.3.24 Array.prototype.some ( callbackfn [ , thisArg ] )

  ...
  6. Repeat, while k < len
    ..
    c. If kPresent is true, then
      i. Let kValue be ? Get(O, Pk).
      ii. Let testResult be ToBoolean(? Call(callbackfn, T, « kValue, k, O »)).
  ...
includes: [testBigIntTypedArray.js]
features: [BigInt, TypedArray]
---*/

testWithBigIntTypedArrayConstructors(function(TA) {
  var sample = new TA([42n, 43n, 44n]);

  sample.some(function(v, i) {
    if (i < sample.length - 1) {
      sample[i+1] = 42n;
    }

    assert.sameValue(
      v, 42n, "method does not cache values before callbackfn calls"
    );
  });
});