test_slice.go

package main

import (
	"fmt"
	"testing"
)

func Test_slice(t *testing.T) {
	arr := make([]int, 0)
	for i := 0; i < 10; i++ {
		arr = append(arr, i)
	}

	offset := 0
	limit := 5

	start := offset
	end := limit + offset -1
	sliced := arr[start:end]

	fmt.Printf("%d %d\n", start, end)
	fmt.Printf("%v\n", sliced)

	if len(sliced) != limit {
		t.Fail()
	}
}

Line 18 should be end := limit + offset