/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

// Test that everything in the heap graph gets serialized once, and only once.

#include "DevTools.h"

DEF_TEST(SerializesEverythingInHeapGraphOnce, {
  FakeNode nodeA;
  FakeNode nodeB;
  FakeNode nodeC;
  FakeNode nodeD;

  AddEdge(nodeA, nodeB);
  AddEdge(nodeB, nodeC);
  AddEdge(nodeC, nodeD);
  AddEdge(nodeD, nodeA);

  ::testing::NiceMock<MockWriter> writer;

  // Should serialize each node once.
  ExpectWriteNode(writer, nodeA);
  ExpectWriteNode(writer, nodeB);
  ExpectWriteNode(writer, nodeC);
  ExpectWriteNode(writer, nodeD);

  JS::AutoCheckCannotGC noGC(cx);

  ASSERT_TRUE(WriteHeapGraph(cx, JS::ubi::Node(&nodeA), writer,
                             /* wantNames = */ false,
                             /* zones = */ nullptr, noGC));
});