import java.util.Scanner;

public class ConsecutiveSubsequences {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int t = scanner.nextInt();
        while (t-- > 0) {
            int[] cnt = new int[100];
            int n = scanner.nextInt();
            int k = scanner.nextInt();
            cnt[0] = 1;
            int sum = 0;
            for (int i = 0; i < n; i++) {
                int num = scanner.nextInt();
                sum = (sum + num) % k;
                cnt[sum]++;
            }
            long ret = 0;
            for (int i = 0; i < k; i++) {
                ret += (long) cnt[i] * (cnt[i] - 1) / 2;
            }
            System.out.println(ret);
        }
        scanner.close();
    }
}