v8-array-buffer-unittest.cc

// Copyright 2026 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "include/v8-array-buffer.h"

#include "test/unittests/test-utils.h"
#include "testing/gtest/include/gtest/gtest.h"

namespace v8 {
namespace {

using ArrayBufferTest = TestWithContext;

TEST_F(ArrayBufferTest, TransferWithDetachKey) {
  Local<ArrayBuffer> ab = ArrayBuffer::New(isolate(), 1);
  Local<Value> key = Symbol::New(isolate());
  ab->SetDetachKey(key);
  Local<Object> global = context()->Global();
  Local<String> property_name =
      String::NewFromUtf8Literal(isolate(), "test_ab");
  global->Set(context(), property_name, ab).ToChecked();

  {
    TryCatch try_catch(isolate());
    CHECK(TryRunJS("globalThis.test_ab.transfer()").IsEmpty());
  }

  // Didnot transfer.
  EXPECT_EQ(ab->ByteLength(), 1u);

  ab->SetDetachKey(Undefined(isolate()));
  RunJS("globalThis.test_ab.transfer()");

  // Transferred.
  EXPECT_EQ(ab->ByteLength(), 0u);
}

}  // namespace
}  // namespace v8