"""PARTIEL BUG: les rendus 3, 2 et 2, 3 sont considérés comme distincts"""
m = 1000000007

def main():
    n, target = map(int, input().split())
    dollars = [int(i) for i in input().split() if int(i) != 0]
   
    manieres = [0 for _ in range(target+1)]
    manieres[0] = 1

    for k in range(1, target+1):
        man = 0
        for coin in dollars:
            if coin <= k:
                #print("coin:", coin)
                man += manieres[k-coin]

        #print(k, man)
        manieres[k] = man%m

    print(manieres)
    return manieres[target]

for _ in range(int(input())):
    print(main())