/*
* Author: Arpit Bhayani
* https://arpitbhayani.me
*/
#include <cmath>
#include <cstdio>
#include <cstdlib>
#include <climits>
#include <deque>
#include <iostream>
#include <list>
#include <limits>
#include <map>
#include <queue>
#include <set>
#include <stack>
#include <vector>
#define ll long long
#define MIN(a, b) a < b ? a : b
#define MAX(a, b) a > b ? a : b
using namespace std;
int readline(char *str) {
int i = 0;
char ch;
while((ch = getchar()) != '\n') {
str[i++] = ch;
}
str[i] = '\0';
return i;
}
int main(int argc, char *argv[]) {
int t;
scanf("%d", &t);
while(t--) {
int n, k;
scanf("%d%d", &n, &k);
ll int * counts = (ll int *) calloc(100, sizeof(ll int));
counts[0] = 1;
ll int sum = 0;
for(int i = 0 ; i < n ; i++) {
int x;
scanf("%d", &x);
sum += x;
if(sum >= k) {
sum %= k;
}
counts[sum]++;
}
ll int count = 0;
for(int i = 0 ; i < k; i++) {
count += ((counts[i] * (counts[i] - 1)) / 2);
}
printf("%lld\n", count);
free(counts);
}
return 0;
}
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