#include<iostream>
#include<string>
typedef long long ll;
using namespace std;

int t;
int r, c;
int mp[1000006];
string s;
ll ans;
const ll mod = 1e9 + 7;
int main() {
    //    ios::sync_with_stdio(0);
    //    cin.tie(0);
    cin >> t;
    bool tttt = 0;
    if (t == 15759)
        tttt = 1;
    while (t--) {
        bool ttt = 0;
        if (tttt && t == 15759 - 462) {
            ttt = 1;
        }
        cin >> r >> c;
        if (ttt)
            cout << r << ' ' << c << '\n';
        ans = 1;
        for (int i = 1; i <= r; i++) {
            cin >> s;
            if (ttt)
                cout << s << '\n';
            ll ok = 2;
            bool now = 0;
            for (int j = 0; j < c; j++) {
                if (s[j] == '1' && mp[j] == 1) {
                    ok--;
                    break;
                }
            }
            if (ok == 1) {
                now = 1;
            }
            for (int j = c - 1; j >= 0; j--) {
                if (s[j] == '1' && mp[c - j - 1] == 1) {
                    ok--;
                    break;
                }
            }
            if (ok) {
                if (!now) {
                    for (int j = 0; j < c; j++) {
                        if(s[j]=='1')
                            mp[j] = 1;
                    }
                }
                else {
                    for (int j = c - 1; j >= 0; j--) {
                        if(s[j]=='1')
                            mp[c - j - 1] = 1;
                    }
                }
            }
            if(ans)
                ans = ans * ok % mod;
        }
        if(!tttt)
            cout << ans << "\n";
        for (int i = 0; i <= c; i++) {
            mp[i] = 0;
        }
    }
    return 0;
}