summaryrefslogtreecommitdiff
path: root/test/built-ins/ArrayBuffer/prototype/slice/species-constructor-is-not-object.js
blob: ce293de3f8da5fb348d1461f3faf86e2198417a2 (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
42
43
44
// Copyright (C) 2015 André Bargull. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.

/*---
esid: sec-arraybuffer.prototype.slice
es6id: 24.1.4.3
description: >
  Throws TypeError if `constructor` property is not an object.
info: |
  ArrayBuffer.prototype.slice ( start, end )

  ...
  13. Let ctor be SpeciesConstructor(O, %ArrayBuffer%).
  14. ReturnIfAbrupt(ctor).
  ...

  7.3.20 SpeciesConstructor ( O, defaultConstructor )
    ...
    2. Let C be Get(O, "constructor").
    3. ReturnIfAbrupt(C).
    4. If C is undefined, return defaultConstructor.
    5. If Type(C) is not Object, throw a TypeError exception.
    ...
features: [Symbol]
---*/

var arrayBuffer = new ArrayBuffer(8);

function callSlice() { arrayBuffer.slice(); }

arrayBuffer.constructor = null;
assert.throws(TypeError, callSlice, "`constructor` value is null");

arrayBuffer.constructor = true;
assert.throws(TypeError, callSlice, "`constructor` value is Boolean");

arrayBuffer.constructor = "";
assert.throws(TypeError, callSlice, "`constructor` value is String");

arrayBuffer.constructor = Symbol();
assert.throws(TypeError, callSlice, "`constructor` value is Symbol");

arrayBuffer.constructor = 1;
assert.throws(TypeError, callSlice, "`constructor` value is Number");