JSTests/test262/test/built-ins/TypedArray/prototype/length/this-has-no-typedarrayname-internal.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-get-%typedarray%.prototype.length
description: >
  Throws a TypeError exception when `this` does not have a [[TypedArrayName]]
  internal slot
info: |
  22.2.3.18 get %TypedArray%.prototype.length

  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: [DataView, TypedArray]
---*/

var TypedArrayPrototype = TypedArray.prototype;
var getter = Object.getOwnPropertyDescriptor(
  TypedArrayPrototype, "length"
).get;

assert.throws(TypeError, function() {
  getter.call({});
});

assert.throws(TypeError, function() {
  getter.call([]);
});

var ab = new ArrayBuffer(8);
assert.throws(TypeError, function() {
  getter.call(ab);
});

var dv = new DataView(new ArrayBuffer(8), 0);
assert.throws(TypeError, function() {
  getter.call(dv);
});