#include <iostream>
#include <stack>
#include <utility>

#include <vector>
using std::vector;

typedef vector<vector<char> > Board;

int check_white(Board &board, std::stack< std::pair<int, int> > &todo, int row, int col, int N) {
	if (row >= 0 && col >= 0 && row < N && col < N) {
		if (board[row][col] == '-') {
			board[row][col] = 'w';
			todo.push(std::make_pair(row, col));
			return 1;
		}
	}
	return 0;
}

int main(int argc, char const *argv[])
{
	int T;
	std::cin >> T;
	for (int i = 0; i < T; ++i)
	{
		int N;
		std::cin >> N;
		Board board(N,vector<char>(N));
		for (int row = 0; row < N; row++) {
			char temp[N+1];
			std::cin >> temp;
			for(int col = 0; col < N; col++) {
				board[row][col] = temp[col];
			}
		}

		// fill stack with whites
		std::stack< std::pair<int, int> > todo;
		for (int row = 0; row < N; row++) {
			for (int col = 0; col < N; col++) {
				if (board[row][col] == 'w') {
					todo.push(std::pair<int, int>(row, col));
				}
			}
		}
		int no_made_white = 0;
		while(!todo.empty()) {
			std::pair<int, int> n = todo.top();
			todo.pop();
			int row = n.first;
			int col = n.second;
			no_made_white += check_white(board, todo, row-1, col-1, N);
			no_made_white += check_white(board, todo, row-1, col, N);
			no_made_white += check_white(board, todo, row-1, col+1, N);
			no_made_white += check_white(board, todo, row, col-1, N);
			no_made_white += check_white(board, todo, row, col+1, N);
			no_made_white += check_white(board, todo, row+1, col-1, N);
			no_made_white += check_white(board, todo, row+1, col, N);
			no_made_white += check_white(board, todo, row+1, col+1, N);
		}
		std::cout << no_made_white << std::endl;
	}
	return 0;
}