js/src/tests/test262/built-ins/String/prototype/charAt/pos-coerce-err.js


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// 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-string.prototype.charat
description: Error when attempting to coerce providec "pos" to a Number
info: |
  [...]
  3. Let position be ? ToInteger(pos).
  [...]

  7.1.4 ToInteger

  1. Let number be ? ToNumber(argument).
---*/

var noCoerce = Object.create(null);

assert.throws(TypeError, function() {
  ''.charAt(noCoerce);
});

reportCompare(0, 0);