#include <bits/stdc++.h>
using namespace std;
int main() {
  int t;
  cin >> t;
  while (t--) {
    int n;
    cin >> n;
    int a[n];
    int c = 0;
    for (int i = 0; i < n; i++) {
      cin >> a[i];
    }
    for (int i = 0; i < n; i++) {
      if (a[i] == 0) {
        c++;
      } else
        break;
    }
    for (int i = n - 1; i >= 0; i--) {
      if (a[i] == 0) {
        c++;
      } else
        break;
    }
    for (int i = 0; i < n; i++)
      if (a[i] == 1) c++;
    cout << n - c << "\n";
  }
}
