/*
缁欐瘡涓偣鎼滄椿鐐?璧版硶)+姝荤偣 bitset涓€涓?
(nm)^3/w
*/
#include <bits/stdc++.h>
using namespace std;
#define int long long
#define inf 0x3f3f3f3f3f3f3f3fll
#define For(i,l,r) for(int i=(l);i<=(r);++i)
#define Rof(i,l,r) for(int i=(l);i>=(r);--i)
bool M_S;
const int N=1005;
// x in [1,n], y in [1,m]
#define uid(x,y) (((x)-1)*m+(y))
// x in [-n,n], y in [-m,m]
// x+n in [0,n+n], y+n in [0,m+m]
#define UID(x,y) ((x)*(m+m+1)+(y))
int n,m,dx[]={0,1,0,-1},dy[]={1,0,-1,0};
char s[N][N];
bitset<N> die[N*8],bit;
queue<array<int,2>> q;
bool vis[N];
void MAIN1(){
	cin>>n>>m;
	For(i,1,n) cin>>(s[i]+1);
	int cnt=0;
	For(i,1,n) For(j,1,m) cnt+=(s[i][j]=='.');
	// cout<<cnt<<'\n';
	// For(i,1,n){
	// 	For(j,1,m) cout<<uid(i,j)<<' ';
	// 	cout<<'\n';
	// }
	// For(i,-n,n){
	// 	For(j,-m,m) cout<<UID(n+i,m+j)<<' ';
	// 	cout<<'\n';
	// }
	For(i,1,n){
		For(j,1,m){
			if(s[i][j]=='O') continue;
			q.push({i,j});
			while(!q.empty()){
				auto [x,y]=q.front();q.pop();
				if(vis[uid(x,y)]) continue;
				vis[uid(x,y)]=1;
				For(k,0,3){
					int kx=x+dx[k],ky=y+dy[k];
					if(kx<1||kx>n||ky<1||ky>m||s[kx][ky]=='O'){
						die[UID(n+kx-i,m+ky-j)][uid(i,j)]=1;
					}
					else{
						q.push({kx,ky});
					}
				}
			}
			For(_,1,n*m) vis[_]=0;
		}
	}
	int ans=0;
	For(i,1,n){
		For(j,1,m){
			if(s[i][j]=='O') continue;
			q.push({i,j});
			while(!q.empty()){
				auto [x,y]=q.front();q.pop();
				if(vis[uid(x,y)]) continue;
				vis[uid(x,y)]=1;
				bit|=die[UID(n+x-i,m+y-j)];
				For(k,0,3){
					int kx=x+dx[k],ky=y+dy[k];
					if(kx<1||kx>n||ky<1||ky>m||s[kx][ky]=='O'){
						continue;
					}
					else{
						q.push({kx,ky});
					}
				}
			}
			if(bit.count()==cnt-1) ans++;
			For(_,1,n*m) vis[_]=0,bit[_]=0;
		}
	}
	cout<<ans<<'\n';
}
void _MAIN1(){
	For(i,-n,n){
		For(j,-m,m){
			For(_,1,n*m) die[UID(n+i,m+j)][_]=0;
		}
	}
}
int T;
void MAIN(){
	cin>>T;
	For(_,1,T) MAIN1(),_MAIN1();
}
bool M_T;
signed main(){
	freopen("kangaroo.in","r",stdin);
	freopen("kangaroo.out","w",stdout);
	ios::sync_with_stdio(false);
	cin.tie(0),cout.tie(0);
	double T_S=clock();MAIN();double T_T=clock();
	cerr<<"T:"<<(T_T-T_S)/CLOCKS_PER_SEC<<"s ";
	cerr<<"M:"<<(&M_S-&M_T)/1048576<<"MiB\n";
	return 0;
}
/*
#1
4
2 5
.OO..
O..O.
1 3
O.O
1 3
.O.
2 3
OOO
OOO

3
1
0
0
*/