JSTests/test262/test/built-ins/TypedArray/prototype/subarray/this-is-not-typedarray-instance.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: >
  Throws a TypeError exception when `this` is not a TypedArray instance
info: |
  22.2.3.9 %TypedArray%.prototype.subarray( begin , end )

  The following steps are taken:

  1. Let O be the this value.
  2. If Type(O) is not Object, throw a TypeError exception.
  3. If O does not have a [[TypedArrayName]] internal slot, throw a TypeError
  exception.
  ...
includes: [testTypedArray.js]
features: [TypedArray]
---*/

var subarray = TypedArray.prototype.subarray;

assert.throws(TypeError, function() {
  subarray.call({}, 0, 0);
}, "this is an Object");

assert.throws(TypeError, function() {
  subarray.call([], 0, 0);
}, "this is an Array");

var ab = new ArrayBuffer(8);
assert.throws(TypeError, function() {
  subarray.call(ab, 0, 0);
}, "this is an ArrayBuffer instance");

var dv = new DataView(new ArrayBuffer(8), 0, 1);
assert.throws(TypeError, function() {
  subarray.call(dv, 0, 0);
}, "this is a DataView instance");