#include <stdint.h>  // uint32_t

#include "js/ArrayBuffer.h"  // JS::{DetachArrayBuffer,GetArrayBuffer{ByteLength,Data},IsArrayBufferObject,NewArrayBufferWithUserOwnedContents}
#include "js/GCAPI.h"        // JS::AutoCheckCannotGC, JS_GC
#include "js/RootingAPI.h"   // JS::Rooted
#include "jsapi-tests/tests.h"
#include "vm/ArrayBufferObject.h"

alignas(js::ArrayBufferObject::ARRAY_BUFFER_ALIGNMENT) char testData[] =
    "1234567890ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";

constexpr size_t testDataLength = sizeof(testData);

static void GC(JSContext* cx) {
  JS_GC(cx);
  // Trigger another to wait for background finalization to end.
  JS_GC(cx);
}

BEGIN_TEST(testArrayBufferWithUserOwnedContents) {
  JS::Rooted<JSObject*> obj(cx, JS::NewArrayBufferWithUserOwnedContents(
                                    cx, testDataLength, testData));
  GC(cx);
  CHECK(VerifyObject(obj, testDataLength));
  GC(cx);
  JS::DetachArrayBuffer(cx, obj);
  GC(cx);
  CHECK(VerifyObject(obj, 0));

  return true;
}

bool VerifyObject(JS::HandleObject obj, uint32_t length) {
  JS::AutoCheckCannotGC nogc;

  CHECK(obj);
  CHECK(JS::IsArrayBufferObject(obj));
  CHECK_EQUAL(JS::GetArrayBufferByteLength(obj), length);
  bool sharedDummy;
  const char* data = reinterpret_cast<const char*>(
      JS::GetArrayBufferData(obj, &sharedDummy, nogc));
  if (length == testDataLength) {
    CHECK(data);
    CHECK(testData == data);
  }

  return true;
}

END_TEST(testArrayBufferWithUserOwnedContents)