summaryrefslogtreecommitdiff
path: root/test/built-ins/TypedArray/prototype/slice/speciesctor-get-species-custom-ctor-length-throws.js
blob: 8d572f230a9a83401c71431201d58c1eca667f81 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
// 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.slice
description: >
  Throws a TypeError if new typedArray's length < count
info: |
  22.2.3.24 %TypedArray%.prototype.slice ( start, end )

  ...
  9. Let A be ? TypedArraySpeciesCreate(O, « count »).
  ...

  22.2.4.7 TypedArraySpeciesCreate ( exemplar, argumentList )

  ...
  4. Return ? TypedArrayCreate(constructor, argumentList).

  22.2.4.6 TypedArrayCreate ( constructor, argumentList )

  ...
  3. If argumentList is a List of a single Number, then
    a. If the value of newTypedArray's [[ArrayLength]] internal slot <
    argumentList[0], throw a TypeError exception.
  ...
includes: [testTypedArray.js]
features: [Symbol.species, TypedArray]
---*/

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

  sample.constructor = {};
  sample.constructor[Symbol.species] = function() {
    return new TA();
  };

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