JSTests/test262/test/built-ins/TypedArray/prototype/subarray/speciesctor-get-species-custom-ctor-throws.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.subarray
description: >
  Custom @@species constructor throws if it does not return a compatible object
info: |
  22.2.3.27 %TypedArray%.prototype.subarray( begin , end )

  ...
  17. Return ? TypedArraySpeciesCreate(O, argumentsList).

  22.2.4.7 TypedArraySpeciesCreate ( exemplar, argumentList )

  ...
  3. Let constructor be ? SpeciesConstructor(exemplar, defaultConstructor).
  4. Return ? TypedArrayCreate(constructor, argumentList).

  7.3.20 SpeciesConstructor ( O, defaultConstructor )

  ...
  5. Let S be ? Get(C, @@species).
  ...
  7. If IsConstructor(S) is true, return S.
  ...

  22.2.4.6 TypedArrayCreate ( constructor, argumentList )

  1. Let newTypedArray be ? Construct(constructor, argumentList).
  2. Perform ? ValidateTypedArray(newTypedArray).
  ...
includes: [testTypedArray.js]
features: [Symbol.species, TypedArray]
---*/

testWithTypedArrayConstructors(function(TA) {
  var sample = new TA(2);
  var ctor = function() {};

  sample.constructor = {};
  sample.constructor[Symbol.species] = ctor;

  assert.throws(TypeError, function() {
    sample.subarray(0);
  });
});