return int(sum64 % uint64(cardinality))
}

// hashOrder - hashes input key to return consistent
// hashed integer slice. Returned integer order is salted
// with an input key. This results in consistent order.
// NOTE: collisions are fine, we are not looking for uniqueness
// in the slices returned.
func hashOrder(key string, cardinality int) []int {
	if cardinality <= 0 {

	for i, testCase := range testCases {
		hashedOrder := hashOrder(testCase.objectName, 16)
		if !reflect.DeepEqual(testCase.hashedOrder, hashedOrder) {
			t.Errorf("Test case %d: Expected \"%v\" but failed \"%v\"", i+1, testCase.hashedOrder, hashedOrder)
		}
	}

	// Tests hashing order to fail for when order is '-1'.
	if hashedOrder := hashOrder("This will fail", -1); hashedOrder != nil {