// 1003.cpp: 定义控制台应用程序的入口点。
//

#include "stdafx.h"


#include<iostream>
using namespace std;

struct Node{
	int sum;
	int start, end;
};


Node* Combine(int *digs,int N, int length) {
	Node *nodes = new Node[length];
	bool gteZero, next = true;
	int index = 0;
	for (int i = 0; i < N; i++) {
		if (i == 0) {
			nodes[index].sum = 0;
			nodes[index].start = 0;
			nodes[index].end = -1;
		}
		else if (digs[i] >= 0 != gteZero) {
			nodes[index].end = i - 1;
			index++;
			nodes[index].sum = 0;
			nodes[index].start = i;
			nodes[index].end = -1;
		}
		nodes[index].sum += digs[i];
		gteZero = digs[i] >= 0;
	}
	if (nodes[index].end == -1)
	{
		nodes[index].end = N - 1;
	}
	return nodes;
}

int getResult() {

}

int main()
{
	int T, N;
	while (cin >> T) {
		for (int index = 0; index < T; index++) {
			cin >> N;
			int *digs = new int[N];
			Node *nodes;
			bool gteZero = false;
			int count = 0;
			for (int i = 0; i < N; i++) {
				cin >> digs[i];
				if (i == 0) {
					count++;
				}
				else if (digs[i] >= 0 != gteZero) {
					count++;
				}
				gteZero = digs[i] >= 0;
			}
			nodes = Combine(digs, N, count);
			free(digs);
		}
	}
    return 0;
}