#include <bits/stdc++.h>
using namespace std;
#define SC               scanf
#define PF               printf
#define ull              unsigned long long
#define ld               long double
#define F                first
#define S                second
#define pb               push_back
#define sort_a(a)        sort(a.begin(),a.end());
#define sort_d(a)        sort(a.rbegin(),a.rend());
#define READ(f)          freopen(f, "r", stdin)
#define WRITE(f)         freopen(f, "w", stdout)
#define rev(s)           reverse(s.begin(),s.end())
#define P(ok)            cout << (ok ? "YES\n": "NO\n")
#define __Heart__              ios_base :: sync_with_stdio(false); cin.tie(NULL);
#define ll long long
typedef pair< ll , ll>                   PII;
const int sz = 2e5 + 5 ;
int dp[sz] ;
void solve()
{
    ll n , a , Ans = 0; cin >> n ;
    for(ll i = 0 ; i < n ; i++){
        cin >> a ;
        (i == 0? dp[i] = a : dp[i] = dp[i - 1] ^ a) ;
    }
    map < ll , ll > value , range ;
    for(ll i = 0 ; i < n ; i++){
        if(value[dp[i]] > 0){
            ll cur = (i - 1) * value[dp[i]] - range[dp[i]] ;
            Ans += cur ;
            value[dp[i]]++ ;
            range[dp[i]] += i ;
            if(dp[i] == 0) Ans += i ;
        } else {

             if(dp[i] == 0) Ans += i ;
             value[dp[i]]++ ;
             range[dp[i]] += i ;
        }
    }
    cout << Ans << "\n" ;
}
int main()
{
     __Heart__
     // READ("input9.txt") ;
     //WRITE("output9.txt") ;
     int t ; cin >> t ; while(t--) solve() ;
}