package underscore_test import ( "testing" "github.com/stretchr/testify/assert" u "github.com/rjNemo/underscore" ) func TestReduce(t *testing.T) { nums := []int{0, 1, 2, 3, 4, 5, 6, 7, 8, 9} reducer := func(n, acc int) int { return n + acc } want := 45 assert.Equal(t, want, u.Reduce(nums, reducer, 0)) }