JSTests/test262/test/built-ins/DataView/prototype/setUint8/detached-buffer-after-number-value.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-dataview.prototype.setuint8
description: >
  Detached buffer is checked after ToNumber(value)
info: |
  24.2.4.18 DataView.prototype.setUint8 ( byteOffset, value )

  1. Let v be the this value.
  2. Return ? SetViewValue(v, byteOffset, true, "Uint8", value).

  24.2.1.2 SetViewValue ( view, requestIndex, isLittleEndian, type, value )

  ...
  7. Let numberValue be ? ToNumber(value).
  ...
  9. Let buffer be the value of view's [[ViewedArrayBuffer]] internal slot.
  10. If IsDetachedBuffer(buffer) is true, throw a TypeError exception.
  ...
includes: [detachArrayBuffer.js]
---*/

var buffer = new ArrayBuffer(8);
var sample = new DataView(buffer, 0);

var v = {
  valueOf: function() {
    throw new Test262Error();
  }
};

$DETACHBUFFER(buffer);
assert.throws(Test262Error, function() {
  sample.setUint8(0, v);
});