♻️ (sum_all):fix sum all_test

Author: yuanyu90221

arrays-and-slices/sum.go

@@ -9,10 +9,9 @@ func Sum(numbers []int) int {
 }
 
 func SumAll(numbersToSum ...[]int) []int {
-	lengthOfNumbersToSum := len(numbersToSum)
-	sums := make([]int, lengthOfNumbersToSum)
-	for i, numbers := range numbersToSum {
-		sums[i] = Sum(numbers)
+	var sums []int
+	for _, numbers := range numbersToSum {
+		sums = append(sums, Sum(numbers))
 	}
 	return sums
 }

arrays-and-slices/sum_test.go

@@ -40,8 +40,8 @@ func TestSumAll(t *testing.T) {
 	})
 
 	t.Run("safely sum empty slices", func(t *testing.T) {
-		got := SumAllTails([]int{}, []int{3, 4, 5})
-		want := []int{0, 9}
+		got := SumAll([]int{}, []int{3, 4, 5})
+		want := []int{0, 12}
 		if !reflect.DeepEqual(got, want) {
 			t.Errorf("got %v, want %v", got, want)
 		}