// Copyright (C) 2021 Microsoft. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-array.prototype.findlastindex
description: >
  Predicate is only called if this.length is > 0.
info: |
  Array.prototype.findLastIndex ( predicate[ , thisArg ] )

  ...
  4. Let k be len - 1.
  5. Repeat, while k ≥ 0,
    ...
    c. Let testResult be ! ToBoolean(? Call(predicate, thisArg, « kValue, 𝔽(k), O »)).
  6. Return -1.
features: [array-find-from-last]
---*/

var called = false;

var predicate = function() {
  called = true;
  return true;
};

var result = [].findLastIndex(predicate);

assert.sameValue(
  called, false,
  '[].findLastIndex(predicate) does not call predicate'
);
assert.sameValue(
  result, -1,
  '[].findLastIndex(predicate) returned undefined'
);

reportCompare(0, 0);