text: /*
   * Copyright (c) 2018, The bitcoin2network developers.
   * Portions Copyright (c) 2012-2017, The CryptoNote Developers, The Bytecoin Developers.
   *
   * This file is part of bitcoin2network.
   *
   * This file is subject to the terms and conditions defined in the
   * file 'LICENSE', which is part of this source code package.
   */
  
  #pragma once 
  #include "Chaingen.h"
  
  struct get_tx_validation_base : public test_chain_unit_base {
    get_tx_validation_base() : m_invalid_tx_index(0), m_invalid_block_index(0) {
      REGISTER_CALLBACK_METHOD(get_tx_validation_base, mark_invalid_tx);
      REGISTER_CALLBACK_METHOD(get_tx_validation_base, mark_invalid_block);
    }
  
    bool check_tx_verification_context(bool tve, bool tx_added, size_t event_idx, const CryptoNote::Transaction& /*tx*/) {
      return m_invalid_tx_index == event_idx ? !tve && !tx_added : tve && tx_added;
    }
  
    bool check_block_verification_context(std::error_code bve, size_t event_idx,
                                          const CryptoNote::BlockTemplate& /*block*/) {
      std::cout << "message: " << bve.message() << std::endl;
      return m_invalid_block_index == event_idx ? blockWasNotAdded(bve) : blockWasAdded(bve);
    }
  
    bool check_block_verification_context(std::error_code bve, size_t event_idx,
                                          const CryptoNote::RawBlock& /*block*/) {
      return check_block_verification_context(bve, event_idx, CryptoNote::BlockTemplate{});
    }
  
    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 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;
    }
  
  private:
    size_t m_invalid_tx_index;
    size_t m_invalid_block_index;
  };
  
  struct gen_tx_big_version : public get_tx_validation_base {
    bool generate(std::vector<test_event_entry>& events) const;
  };
  
  struct gen_tx_unlock_time : public get_tx_validation_base {
    bool generate(std::vector<test_event_entry>& events) const;
  };
  
  struct gen_tx_no_inputs_no_outputs : public get_tx_validation_base {
    bool generate(std::vector<test_event_entry>& events) const;
  };
  
  struct gen_tx_no_inputs_has_outputs : public get_tx_validation_base {
    bool generate(std::vector<test_event_entry>& events) const;
  };
  
  struct gen_tx_has_inputs_no_outputs : public get_tx_validation_base {
    bool generate(std::vector<test_event_entry>& events) const;
  };
  
  struct gen_tx_invalid_input_amount : public get_tx_validation_base {
    bool generate(std::vector<test_event_entry>& events) const;
  };
  
  struct gen_tx_in_to_key_wo_key_offsets : public get_tx_validation_base {
    bool generate(std::vector<test_event_entry>& events) const;
  };
  
  struct gen_tx_key_offest_points_to_foreign_key : public get_tx_validation_base {
    bool generate(std::vector<test_event_entry>& events) const;
  };
  
  struct gen_tx_sender_key_offest_not_exist : public get_tx_validation_base {
    bool generate(std::vector<test_event_entry>& events) const;
  };
  
  struct gen_tx_mixed_key_offest_not_exist : public get_tx_validation_base {
    bool generate(std::vector<test_event_entry>& events) const;
  };
  
  struct gen_tx_key_image_not_derive_from_tx_key : public get_tx_validation_base {
    bool generate(std::vector<test_event_entry>& events) const;
  };
  
  struct gen_tx_key_image_is_invalid : public get_tx_validation_base {
    bool generate(std::vector<test_event_entry>& events) const;
  };
  
  struct gen_tx_check_input_unlock_time : public get_tx_validation_base {
    bool generate(std::vector<test_event_entry>& events) const;
  };
  
  struct gen_tx_txout_to_key_has_invalid_key : public get_tx_validation_base {
    bool generate(std::vector<test_event_entry>& events) const;
  };
  
  struct gen_tx_output_with_zero_amount : public get_tx_validation_base {
    bool generate(std::vector<test_event_entry>& events) const;
  };
  
  struct gen_tx_signatures_are_invalid : public get_tx_validation_base {
    bool generate(std::vector<test_event_entry>& events) const;
  };
  
  struct GenerateTransactionWithZeroFee : public get_tx_validation_base
  {
    bool generate(std::vector<test_event_entry>& events) const;
  };
  