//
//  main.cpp
//  lesson_02_11_2020_leader_c
//
//  Created by Kadir Kadyrov on 02.11.2020.
//  Copyright © 2020 Kadir Kadyrov. All rights reserved.
//

#include <iostream>

using namespace std;

int main(int argc, const char * argv[]) {
    int t;
    cin >> t;
    while(t--) {
        int n;
        cin >> n;

        int a[n];

        for (int i = 0; i < n; i++)
            cin >> a[i];

        int l = -1, r = -1;

        for (int i = 0; i < n; i++) {
            if (a[i] == 1 && l != -1) {
                r = i;
            }
            if (a[i] == 1 && l == -1) {
                l = i;
            }
        }

        int ans = 0;
        for (int i = l; i <= r; i++) {
            if (a[i] == 0)
                ans ++;
        }

        cout << ans << endl;
    }
}