You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: unstable_test.go
    path of file: ./repos/go-zero/core/mathx
    
    the code of the file until where you have to start completion: package mathx

import (
	"testing"
	"time"

	"github.com/stretchr/testify/assert"
)

func TestUnstable_AroundDuration(t *testing.T) {
	unstable := NewUnstable(0.05)
	for 
    
func TestUnstable_AroundIntLarge(t *testing.T) {
	const target int64 = 10000
	unstable := NewUnstable(5)
	for i := 0; i < 1000; i++ {
		val := unstable.AroundInt(target)
		assert.True(t, 0 <= val)
		assert.True(t, val <= 2*target)
	}
}