// the return answer in the sample case 1 is
vector<vector<string>> exp = {{"bat"}, {"eat", "tea", "ate"}, {"tan", "nat"}};

// the expected answer generated by the tool is
vector<vector<string>> exp = {{"bat"}, {"nat", "tan"}, {"ate", "eat", "tea"}};

TEST(q17, sample_input02) {
  l17::Solution solver;
  // miss this-> string digits = "";
  vector<string> exp = {};
  // Try EXPECT_EQ_ANY_ORDER_RECURSIVE
  // if the element is also matched in any order.
  EXPECT_EQ_ANY_ORDER(solver.letterCombinations(digits), exp);
}

vector<vector<char>> board = {{"X", "X", "X", "X"}, {"X", "O", "O", "X"}, {"X", "X", "O", "X"}, {"X", "O", "X", "X"}};

TEST(q463, sample_input01) {
  l463::Solution solver;
  vector<vector<int>> grid = {};
  //0 = 0
  //1 = 1
  //1 = 0
  //0 = 1
  //0 = 0
  //1 = 1
  //0 = 0
  int exp = 16;
  EXPECT_EQ(solver.islandPerimeter(grid), exp);
}

// since the solution function with void return type
void solve(vector<vector<char>>& board) {}

// then the pytool generates an ambiguous variable.
void exp = [["X","X","X","X"],["X","X","X","X"],["X","X","X","X"],["X","O","X","X"]];

// the first element is incorrect
vector<vector<int>> exp = {[], {1}, {2}, {1, 2}, {3}, {1, 3}, {2, 3}, {1, 2, 3}};

inline bool approximately_equal(double x, double y) noexcept {
  return abs(y - x) < 1e-6;
}

//actual
  vector<int> dungeon = {-2, -3, 3, -5, -10, 1, 10, 30, -5};

//expect
  vector<vector<int>> dungeon = {{-2, -3, 3}, {-5, -10, 1}, {10, 30, -5}};