text: // Copyright (c) 2012-2016, The CryptoNote developers, The Bytecoin developers
  //
  // This file is part of Interama.
  //
  // Interama is free software: you can redistribute it and/or modify
  // it under the terms of the GNU Lesser General Public License as published by
  // the Free Software Foundation, either version 3 of the License, or
  // (at your option) any later version.
  //
  // Interama is distributed in the hope that it will be useful,
  // but WITHOUT ANY WARRANTY; without even the implied warranty of
  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  // GNU Lesser General Public License for more details.
  //
  // You should have received a copy of the GNU Lesser General Public License
  // along with Interama.  If not, see <http://www.gnu.org/licenses/>.
  
  #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(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_verification_failed;
      else
        return !tvc.m_verification_failed && tx_added;
    }
  
    bool check_block_verification_context(const CryptoNote::block_verification_context& bvc, size_t event_idx, const CryptoNote::Block& /*block*/)
    {
      if (m_invalid_block_index == event_idx)
        return bvc.m_verification_failed;
      else
        return !bvc.m_verification_failed;
    }
  
    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
  {
    explicit GenerateTransactionWithZeroFee(bool keptByBlock);
    bool generate(std::vector<test_event_entry>& events) const;
  
    bool m_keptByBlock;
  };
  
  // MultiSignature
  
  class TestGenerator;
  
  struct MultiSigTx_OutputSignatures : public get_tx_validation_base {
    MultiSigTx_OutputSignatures(size_t givenKeys, uint32_t requiredSignatures, bool shouldSucceed);
    
    bool generate(std::vector<test_event_entry>& events) const;
    bool generate(TestGenerator& generator) const;
  
    const size_t m_givenKeys;
    const uint32_t m_requiredSignatures;
    const bool m_shouldSucceed;
    std::vector<CryptoNote::AccountBase> m_outputAccounts;
  };
  
  struct MultiSigTx_InvalidOutputSignature : public get_tx_validation_base {
    bool generate(std::vector<test_event_entry>& events) const;
  };
  
  
  struct MultiSigTx_Input : public MultiSigTx_OutputSignatures {
    MultiSigTx_Input(size_t givenKeys, uint32_t requiredSignatures, uint32_t givenSignatures, bool shouldSucceed);
    bool generate(std::vector<test_event_entry>& events) const;
  
    const bool m_inputShouldSucceed;
    const uint32_t m_givenSignatures;
  };
  
  
  struct MultiSigTx_BadInputSignature : public MultiSigTx_OutputSignatures {
    MultiSigTx_BadInputSignature();
    bool generate(std::vector<test_event_entry>& events) const;
  };
  