public static void main ( String [ ] args ) {
  Scanner in = new Scanner ( System . in ) ;
  int t = in . nextInt ( ) ;
  while ( t -- > 0 ) {
    int n , m ;
    long ans ;
    n = in . nextInt ( ) ;
    m = in . nextInt ( ) ;
    ans = 0 ;
    int [ ] [ ] arr = new int [ n + 1 ] [ m + 2 ] ;
    for ( int i = 0 ;
    i < n ;
    i ++ ) {
      String st = in . next ( ) ;
      for ( int j = 0 ;
      j < m ;
      j ++ ) {
        if ( st . charAt ( j ) == '*' ) arr [ i ] [ j + 1 ] = 1 ;
      }
    }
    for ( int i = n ;
    i > 0 ;
    i -- ) {
      for ( int j = 1 ;
      j <= m ;
      j ++ ) {
        if ( arr [ i - 1 ] [ j ] > 0 ) {
          arr [ i - 1 ] [ j ] = 1 + Math . min ( arr [ i ] [ j + 1 ] , Math . min ( arr [ i ] [ j - 1 ] , arr [ i ] [ j ] ) ) ;
          ans += arr [ i - 1 ] [ j ] ;
        }
      }
    }
    System . out . println ( ans ) ;
  }
}

public static void main ( String [ ] args ) { Scanner in = new Scanner ( System . in ) ; int t = in . nextInt ( ) ; while ( t -- > 0 ) { int n , m ; long ans ; n = in . nextInt ( ) ; m = in . nextInt ( ) ; ans = 0 ; int [ ] [ ] arr = new int [ n + 1 ] [ m + 2 ] ; for ( int i = 0 ; i < n ; i ++ ) { String st = in . next ( ) ; for ( int j = 0 ; j < m ; j ++ ) { if ( st . charAt ( j ) == ' * ' ) arr [ i ] [ j + 1 ] = 1 ; } } for ( int i = n ; i > 0 ; i -- ) { for ( int j = 1 ; j <= m ; j ++ ) { if ( arr [ i - 1 ] [ j ] > 0 ) { arr [ i - 1 ] [ j ] = 1 + Math . min ( arr [ i ] [ j + 1 ] , Math . min ( arr [ i ] [ j - 1 ] , arr [ i ] [ j ] ) ) ; ans += arr [ i - 1 ] [ j ] ; } } } System . out . println ( ans ) ; } }
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