text: // Copyright (c) 2014-2018, The Monero Project
  //
  // All rights reserved.
  //
  // Redistribution and use in source and binary forms, with or without modification, are
  // permitted provided that the following conditions are met:
  //
  // 1. Redistributions of source code must retain the above copyright notice, this list of
  //    conditions and the following disclaimer.
  //
  // 2. Redistributions in binary form must reproduce the above copyright notice, this list
  //    of conditions and the following disclaimer in the documentation and/or other
  //    materials provided with the distribution.
  //
  // 3. Neither the name of the copyright holder nor the names of its contributors may be
  //    used to endorse or promote products derived from this software without specific
  //    prior written permission.
  //
  // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
  // EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  // MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
  // THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  // INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  // STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
  // THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  //
  // Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers
  
  #pragma once
  #include "chaingen.h"
  
  /************************************************************************/
  /*                                                                      */
  /************************************************************************/
  
  class test_super_nodes_base : public test_chain_unit_base {};
  
  template<>
  struct get_test_options<test_super_nodes_base>
  {
    const std::vector<std::pair<uint8_t, uint64_t>> hard_forks = { std::make_pair(7, 0),
                                                                   std::make_pair(8, 1),
                                                                   std::make_pair(9, 2) };
    const cryptonote::test_options test_options = { hard_forks };
  };
  
  class gen_super_nodes : public test_super_nodes_base
  {
  public:
    gen_super_nodes();
    bool generate(std::vector<test_event_entry> &events) const;
    bool check_registered(cryptonote::core& c, size_t ev_index, const std::vector<test_event_entry> &events);
    bool check_expired(cryptonote::core& c, size_t ev_index, const std::vector<test_event_entry> &events);
  private:
    cryptonote::keypair m_alice_super_node_keys;
  };
  
  template<> struct get_test_options<gen_super_nodes>: public get_test_options<test_super_nodes_base> {};
  
  class test_prefer_deregisters : public test_super_nodes_base
  {
  public:
    test_prefer_deregisters();
    bool generate(std::vector<test_event_entry> &events);
    bool check_prefer_deregisters(cryptonote::core& c, size_t ev_index, const std::vector<test_event_entry> &events);
  };
  template<> struct get_test_options<test_prefer_deregisters>: public get_test_options<test_super_nodes_base> {};
  
  class test_zero_fee_deregister : public test_super_nodes_base
  {
    size_t m_invalid_tx_index;
  
  public:
    test_zero_fee_deregister();
    bool generate(std::vector<test_event_entry> &events);
  
    bool mark_invalid_tx(cryptonote::core& /*c*/, size_t ev_index, const std::vector<test_event_entry>& /*events*/)
    {
      m_invalid_tx_index = ev_index + 1;
      return true;
    }
    bool check_tx_verification_context(const cryptonote::tx_verification_context& tvc,
                                       bool tx_added,
                                       size_t event_idx,
                                       const cryptonote::transaction& /*tx*/)
    {
      if (m_invalid_tx_index == event_idx)
        return tvc.m_verifivation_failed;
      else
        return !tvc.m_verifivation_failed && tx_added;
    }
  };
  
  template<> struct get_test_options<test_zero_fee_deregister>: public get_test_options<test_super_nodes_base> {};
  
  class test_deregister_safety_buffer : public test_super_nodes_base
  {
    size_t m_invalid_tx_index;
  
  public:
  
    test_deregister_safety_buffer();
    bool generate(std::vector<test_event_entry>& events);
  
    bool mark_invalid_tx(cryptonote::core& /*c*/, size_t ev_index, const std::vector<test_event_entry>& /*events*/)
    {
      m_invalid_tx_index = ev_index + 1;
      return true;
    }
    bool check_tx_verification_context(const cryptonote::tx_verification_context& tvc,
                                       bool tx_added,
                                       size_t event_idx,
                                       const cryptonote::transaction& /*tx*/)
    {
      if (m_invalid_tx_index == event_idx)
        return tvc.m_verifivation_failed;
      else
        return !tvc.m_verifivation_failed && tx_added;
    }
  };
  
  template<> struct get_test_options<test_deregister_safety_buffer>: public get_test_options<test_super_nodes_base> {};
  
  class test_deregisters_on_split : public test_super_nodes_base
  {
  
    size_t m_invalid_tx_index;
  
  public:
    test_deregisters_on_split();
    bool generate(std::vector<test_event_entry>& events);
    bool test_on_split(cryptonote::core& c, size_t ev_index, const std::vector<test_event_entry>& events);
  
    bool mark_invalid_tx(cryptonote::core& /*c*/, size_t ev_index, const std::vector<test_event_entry>& /*events*/)
    {
      m_invalid_tx_index = ev_index + 1;
      return true;
    }
  
    bool check_tx_verification_context(const cryptonote::tx_verification_context& tvc,
                                       bool tx_added,
                                       size_t event_idx,
                                       const cryptonote::transaction& /*tx*/)
    {
      if (m_invalid_tx_index == event_idx)
        return tvc.m_verifivation_failed;
      else
        return !tvc.m_verifivation_failed && tx_added;
    }
  };
  
  template<> struct get_test_options<test_deregisters_on_split>: public get_test_options<test_super_nodes_base> {};
  
  class deregister_too_old : public test_chain_unit_base
  {
    size_t m_invalid_block_index;
  
  public:
    deregister_too_old();
    bool generate(std::vector<test_event_entry>& events);
  
    bool mark_invalid_block(cryptonote::core& /*c*/, size_t ev_index, const std::vector<test_event_entry>& /*events*/)
    {
      m_invalid_block_index = ev_index + 1;
      return true;
    }
  
    bool check_block_verification_context(const cryptonote::block_verification_context& bvc,
                                          size_t event_idx,
                                          const cryptonote::block& /*blk*/)
    {
      if (m_invalid_block_index == event_idx)
        return bvc.m_verifivation_failed;
      else
        return !bvc.m_verifivation_failed;
    }
  };
  
  
  template<> struct get_test_options<deregister_too_old>: public get_test_options<test_super_nodes_base> {};
  //-------------------------------------------------------------------------------------------
  class sn_test_rollback : public test_chain_unit_base
  {
  
  public:
    sn_test_rollback();
    bool generate(std::vector<test_event_entry>& events);
    bool test_registrations(cryptonote::core& c, size_t ev_index, const std::vector<test_event_entry> &events);
  };
  
  template<> struct get_test_options<sn_test_rollback>: public get_test_options<test_super_nodes_base> {};
  
  //-------------------------------------------------------------------------------------------
  
  class test_swarms_basic : public test_super_nodes_base
  {
  public:
    test_swarms_basic();
    bool generate(std::vector<test_event_entry>& events);
  
    bool test_initial_swarms(cryptonote::core& c, size_t ev_index, const std::vector<test_event_entry> &events);
    bool test_with_more_sn(cryptonote::core& c, size_t ev_index, const std::vector<test_event_entry> &events);
    bool test_after_deregisters(cryptonote::core& c, size_t ev_index, const std::vector<test_event_entry> &events);
  };
  
  template<>
  struct get_test_options<test_swarms_basic>
  {
    const std::vector<std::pair<uint8_t, uint64_t>> hard_forks = { std::make_pair(7, 0),
                                                                   std::make_pair(8, 1),
                                                                   std::make_pair(9, 2),
                                                                   std::make_pair(10, 150) };
    const cryptonote::test_options test_options = { hard_forks };
  };
  