package buffer import (	"sync"	"testing" 	"github.com/stretchr/testify/assert") func TestBuffers(t *testing.T) {	const dummyData = "dummy data"	p := NewBytesPool() 	var wg sync.WaitGroup	for g := 0; g < 10; g++ {		wg.Add(1)		go func() {			for i := 0; i < 100; i++ {				buf := p.Get()				assert.Zero(t, buf.Len(), "Expected truncated buffer")				assert.NotZero(t, buf.Cap(), "Expected non-zero capacity") 				buf.AppendString(dummyData)				assert.Equal(t, buf.Len(), len(dummyData), "Expected buffer to contain dummy data") 				buf.Free()			}			wg.Done()		}()	}	wg.Wait()} func TestGlobalBytesPool(t *testing.T) {	assert.NotNil(t, GlobalBytesPool())}