text: #include <gtest/gtest.h>
  #include "zcash/util.h"
  
  TEST(libzcash_utils, convertBytesVectorToVector)
  {
      std::vector<unsigned char> bytes = {0x00, 0x01, 0x03, 0x12, 0xFF};
      std::vector<bool> expected_bits = {
          // 0x00
          0, 0, 0, 0, 0, 0, 0, 0,
          // 0x01
          0, 0, 0, 0, 0, 0, 0, 1,
          // 0x03
          0, 0, 0, 0, 0, 0, 1, 1,
          // 0x12
          0, 0, 0, 1, 0, 0, 1, 0,
          // 0xFF
          1, 1, 1, 1, 1, 1, 1, 1
      };
      ASSERT_TRUE(convertBytesVectorToVector(bytes) == expected_bits);
  }
  
  TEST(libzcash_utils, convertVectorToInt)
  {
      ASSERT_TRUE(convertVectorToInt({0}) == 0);
      ASSERT_TRUE(convertVectorToInt({1}) == 1);
      ASSERT_TRUE(convertVectorToInt({0,1}) == 1);
      ASSERT_TRUE(convertVectorToInt({1,0}) == 2);
      ASSERT_TRUE(convertVectorToInt({1,1}) == 3);
      ASSERT_TRUE(convertVectorToInt({1,0,0}) == 4);
      ASSERT_TRUE(convertVectorToInt({1,0,1}) == 5);
      ASSERT_TRUE(convertVectorToInt({1,1,0}) == 6);
  
      ASSERT_THROW(convertVectorToInt(std::vector<bool>(100)), std::length_error);
  
      {
          std::vector<bool> v(63, 1);
          ASSERT_TRUE(convertVectorToInt(v) == 0x7fffffffffffffff);
      }
  
      {
          std::vector<bool> v(64, 1);
          ASSERT_TRUE(convertVectorToInt(v) == 0xffffffffffffffff);
      }
  }
  