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package quic
import (
"testing"
"github.com/quic-go/quic-go/internal/protocol"
"github.com/stretchr/testify/require"
)
func TestBufferPoolSizes(t *testing.T) {
buf1 := getPacketBuffer()
require.Equal(t, protocol.MaxPacketBufferSize, cap(buf1.Data))
require.Zero(t, buf1.Len())
buf1.Data = append(buf1.Data, []byte("foobar")...)
require.Equal(t, protocol.ByteCount(6), buf1.Len())
buf2 := getLargePacketBuffer()
require.Equal(t, protocol.MaxLargePacketBufferSize, cap(buf2.Data))
require.Zero(t, buf2.Len())
}
func TestBufferPoolRelease(t *testing.T) {
buf1 := getPacketBuffer()
buf1.Release()
// panics if released twice
require.Panics(t, func() { buf1.Release() })
// panics if wrong-sized buffers are passed
buf2 := getLargePacketBuffer()
buf2.Data = make([]byte, 10) // replace the underlying slice
require.Panics(t, func() { buf2.Release() })
}
func TestBufferPoolSplitting(t *testing.T) {
buf := getPacketBuffer()
buf.Split()
buf.Split()
// now we have 3 parts
buf.Decrement()
buf.Decrement()
buf.Decrement()
require.Panics(t, func() { buf.Decrement() })
}
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