text: // Copyright (c) 2014-2018, The SuperiorCoin 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) 2013-2017 The Monero Project
  //
  // Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developersParts of this file are originally copyright (c) 2012-2013 The Cryptonote developers
  
  
  #include "gtest/gtest.h"
  
  #include "checkpoints/checkpoints.cpp"
  
  using namespace cryptonote;
  
  
  TEST(checkpoints_is_alternative_block_allowed, handles_empty_checkpoints)
  {
    checkpoints cp;
  
    ASSERT_FALSE(cp.is_alternative_block_allowed(0, 0));
  
    ASSERT_TRUE(cp.is_alternative_block_allowed(1, 1));
    ASSERT_TRUE(cp.is_alternative_block_allowed(1, 9));
    ASSERT_TRUE(cp.is_alternative_block_allowed(9, 1));
  }
  
  TEST(checkpoints_is_alternative_block_allowed, handles_one_checkpoint)
  {
    checkpoints cp;
    ASSERT_TRUE(cp.add_checkpoint(5, "0000000000000000000000000000000000000000000000000000000000000000"));
  
    ASSERT_FALSE(cp.is_alternative_block_allowed(0, 0));
  
    ASSERT_TRUE (cp.is_alternative_block_allowed(1, 1));
    ASSERT_TRUE (cp.is_alternative_block_allowed(1, 4));
    ASSERT_TRUE (cp.is_alternative_block_allowed(1, 5));
    ASSERT_TRUE (cp.is_alternative_block_allowed(1, 6));
    ASSERT_TRUE (cp.is_alternative_block_allowed(1, 9));
  
    ASSERT_TRUE (cp.is_alternative_block_allowed(4, 1));
    ASSERT_TRUE (cp.is_alternative_block_allowed(4, 4));
    ASSERT_TRUE (cp.is_alternative_block_allowed(4, 5));
    ASSERT_TRUE (cp.is_alternative_block_allowed(4, 6));
    ASSERT_TRUE (cp.is_alternative_block_allowed(4, 9));
  
    ASSERT_FALSE(cp.is_alternative_block_allowed(5, 1));
    ASSERT_FALSE(cp.is_alternative_block_allowed(5, 4));
    ASSERT_FALSE(cp.is_alternative_block_allowed(5, 5));
    ASSERT_TRUE (cp.is_alternative_block_allowed(5, 6));
    ASSERT_TRUE (cp.is_alternative_block_allowed(5, 9));
  
    ASSERT_FALSE(cp.is_alternative_block_allowed(6, 1));
    ASSERT_FALSE(cp.is_alternative_block_allowed(6, 4));
    ASSERT_FALSE(cp.is_alternative_block_allowed(6, 5));
    ASSERT_TRUE (cp.is_alternative_block_allowed(6, 6));
    ASSERT_TRUE (cp.is_alternative_block_allowed(6, 9));
  
    ASSERT_FALSE(cp.is_alternative_block_allowed(9, 1));
    ASSERT_FALSE(cp.is_alternative_block_allowed(9, 4));
    ASSERT_FALSE(cp.is_alternative_block_allowed(9, 5));
    ASSERT_TRUE (cp.is_alternative_block_allowed(9, 6));
    ASSERT_TRUE (cp.is_alternative_block_allowed(9, 9));
  }
  
  TEST(checkpoints_is_alternative_block_allowed, handles_two_and_more_checkpoints)
  {
    checkpoints cp;
    ASSERT_TRUE(cp.add_checkpoint(5, "0000000000000000000000000000000000000000000000000000000000000000"));
    ASSERT_TRUE(cp.add_checkpoint(9, "0000000000000000000000000000000000000000000000000000000000000000"));
  
    ASSERT_FALSE(cp.is_alternative_block_allowed(0, 0));
  
    ASSERT_TRUE (cp.is_alternative_block_allowed(1, 1));
    ASSERT_TRUE (cp.is_alternative_block_allowed(1, 4));
    ASSERT_TRUE (cp.is_alternative_block_allowed(1, 5));
    ASSERT_TRUE (cp.is_alternative_block_allowed(1, 6));
    ASSERT_TRUE (cp.is_alternative_block_allowed(1, 8));
    ASSERT_TRUE (cp.is_alternative_block_allowed(1, 9));
    ASSERT_TRUE (cp.is_alternative_block_allowed(1, 10));
    ASSERT_TRUE (cp.is_alternative_block_allowed(1, 11));
  
    ASSERT_TRUE (cp.is_alternative_block_allowed(4, 1));
    ASSERT_TRUE (cp.is_alternative_block_allowed(4, 4));
    ASSERT_TRUE (cp.is_alternative_block_allowed(4, 5));
    ASSERT_TRUE (cp.is_alternative_block_allowed(4, 6));
    ASSERT_TRUE (cp.is_alternative_block_allowed(4, 8));
    ASSERT_TRUE (cp.is_alternative_block_allowed(4, 9));
    ASSERT_TRUE (cp.is_alternative_block_allowed(4, 10));
    ASSERT_TRUE (cp.is_alternative_block_allowed(4, 11));
  
    ASSERT_FALSE(cp.is_alternative_block_allowed(5, 1));
    ASSERT_FALSE(cp.is_alternative_block_allowed(5, 4));
    ASSERT_FALSE(cp.is_alternative_block_allowed(5, 5));
    ASSERT_TRUE (cp.is_alternative_block_allowed(5, 6));
    ASSERT_TRUE (cp.is_alternative_block_allowed(5, 8));
    ASSERT_TRUE (cp.is_alternative_block_allowed(5, 9));
    ASSERT_TRUE (cp.is_alternative_block_allowed(5, 10));
    ASSERT_TRUE (cp.is_alternative_block_allowed(5, 11));
  
    ASSERT_FALSE(cp.is_alternative_block_allowed(6, 1));
    ASSERT_FALSE(cp.is_alternative_block_allowed(6, 4));
    ASSERT_FALSE(cp.is_alternative_block_allowed(6, 5));
    ASSERT_TRUE (cp.is_alternative_block_allowed(6, 6));
    ASSERT_TRUE (cp.is_alternative_block_allowed(6, 8));
    ASSERT_TRUE (cp.is_alternative_block_allowed(6, 9));
    ASSERT_TRUE (cp.is_alternative_block_allowed(6, 10));
    ASSERT_TRUE (cp.is_alternative_block_allowed(6, 11));
  
    ASSERT_FALSE(cp.is_alternative_block_allowed(8, 1));
    ASSERT_FALSE(cp.is_alternative_block_allowed(8, 4));
    ASSERT_FALSE(cp.is_alternative_block_allowed(8, 5));
    ASSERT_TRUE (cp.is_alternative_block_allowed(8, 6));
    ASSERT_TRUE (cp.is_alternative_block_allowed(8, 8));
    ASSERT_TRUE (cp.is_alternative_block_allowed(8, 9));
    ASSERT_TRUE (cp.is_alternative_block_allowed(8, 10));
    ASSERT_TRUE (cp.is_alternative_block_allowed(8, 11));
  
    ASSERT_FALSE(cp.is_alternative_block_allowed(9, 1));
    ASSERT_FALSE(cp.is_alternative_block_allowed(9, 4));
    ASSERT_FALSE(cp.is_alternative_block_allowed(9, 5));
    ASSERT_FALSE(cp.is_alternative_block_allowed(9, 6));
    ASSERT_FALSE(cp.is_alternative_block_allowed(9, 8));
    ASSERT_FALSE(cp.is_alternative_block_allowed(9, 9));
    ASSERT_TRUE (cp.is_alternative_block_allowed(9, 10));
    ASSERT_TRUE (cp.is_alternative_block_allowed(9, 11));
  
    ASSERT_FALSE(cp.is_alternative_block_allowed(10, 1));
    ASSERT_FALSE(cp.is_alternative_block_allowed(10, 4));
    ASSERT_FALSE(cp.is_alternative_block_allowed(10, 5));
    ASSERT_FALSE(cp.is_alternative_block_allowed(10, 6));
    ASSERT_FALSE(cp.is_alternative_block_allowed(10, 8));
    ASSERT_FALSE(cp.is_alternative_block_allowed(10, 9));
    ASSERT_TRUE (cp.is_alternative_block_allowed(10, 10));
    ASSERT_TRUE (cp.is_alternative_block_allowed(10, 11));
  
    ASSERT_FALSE(cp.is_alternative_block_allowed(11, 1));
    ASSERT_FALSE(cp.is_alternative_block_allowed(11, 4));
    ASSERT_FALSE(cp.is_alternative_block_allowed(11, 5));
    ASSERT_FALSE(cp.is_alternative_block_allowed(11, 6));
    ASSERT_FALSE(cp.is_alternative_block_allowed(11, 8));
    ASSERT_FALSE(cp.is_alternative_block_allowed(11, 9));
    ASSERT_TRUE (cp.is_alternative_block_allowed(11, 10));
    ASSERT_TRUE (cp.is_alternative_block_allowed(11, 11));
  }
  