#include <bits/stdc++.h>
//#include <ext/pb_ds/assoc_container.hpp>
//using namespace __gnu_pbds;
using namespace std;
/* #pragma GCC target ("avx2")
#pragma GCC optimization ("O3")
#pragma GCC optimization ("unroll-loops")*/
typedef long long ll;
const ll MAXK = 3e3 + 5;
const ll MOD = 1e9 + 7;
const ll MODH = 1e9 + 9;
const int MAXLG = 20;
const long double PI = acos(-1);
const ll p = 41;
const long double EPS = 1e-4;
#define x first
#define y second
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
inline ll rand(ll a, ll b) {ll c = rng(); return a+((ll)abs(c))%(b-a+1);}
ll binpowmod(ll a, ll b, ll m) {a %= m;ll res = 1;while (b > 0) {if (b & 1){res = res * a % m;}a = a * a % m;b >>= 1;
 
}return res;}
//typedef tree<ll, null_type, less_equal<ll>, rb_tree_tag,  //less_equal
  //           tree_order_statistics_node_update> oset;
const int MAXN = 2e5 + 5;


ll suff[MAXN] , pre[MAXN];

int main()
{

ios::sync_with_stdio(0);
cin.tie(0);
cout.tie(0);

int t;
cin >> t;
while(t--)
{
  int n,k;
  cin >> n >> k;
  vector<int> v(n + 1);
  map<ll,int> mod_s;
  map<ll,int> mod_p;
  for(int i = 1 ; i <= n ; i++)
  {
     cin >> v[i];
     pre[i] = pre[i - 1] + v[i];
     mod_p[pre[i] % k]++;

  }
  for(int i = n ; i > 0 ; i--)
  {
    suff[i] = suff[i + 1] + v[i];
    mod_s[suff[i] % k]++;
  }
  ll ans = 0;
  for(int i = n ; i >= 1 ; i--)
  {
     ll X = (k - (suff[i] % k)) % k;
     ll Y = pre[i] % k;
     mod_p[Y]--;
     ans+=mod_p[X];
  }
  cout << ans << '\n';

  

}



}