mirror of
https://github.com/zrepl/zrepl.git
synced 2024-12-23 15:38:49 +01:00
74 lines
1.3 KiB
Go
74 lines
1.3 KiB
Go
package util
|
|
|
|
import (
|
|
"bytes"
|
|
"encoding/binary"
|
|
"github.com/stretchr/testify/assert"
|
|
"io"
|
|
"reflect"
|
|
"testing"
|
|
"testing/quick"
|
|
)
|
|
|
|
func TestUnchunker(t *testing.T) {
|
|
|
|
buf := bytes.Buffer{}
|
|
binary.Write(&buf, ChunkHeaderByteOrder, uint32(2))
|
|
buf.WriteByte(0xca)
|
|
buf.WriteByte(0xfe)
|
|
binary.Write(&buf, ChunkHeaderByteOrder, uint32(0))
|
|
buf.WriteByte(0xff) // sentinel, should not be read
|
|
|
|
un := NewUnchunker(&buf)
|
|
|
|
recv := bytes.Buffer{}
|
|
n, err := io.Copy(&recv, un)
|
|
assert.Nil(t, err)
|
|
assert.Equal(t, int64(2), n)
|
|
assert.Equal(t, []byte{0xca, 0xfe}, recv.Bytes())
|
|
|
|
}
|
|
|
|
func TestChunker(t *testing.T) {
|
|
|
|
buf := bytes.Buffer{}
|
|
buf.WriteByte(0xca)
|
|
buf.WriteByte(0xfe)
|
|
|
|
ch := NewChunker(&buf)
|
|
|
|
chunked := bytes.Buffer{}
|
|
n, err := io.Copy(&chunked, &ch)
|
|
assert.Nil(t, err)
|
|
assert.Equal(t, int64(4+2+4), n)
|
|
assert.Equal(t, []byte{0x2, 0x0, 0x0, 0x0, 0xca, 0xfe, 0x0, 0x0, 0x0, 0x0}, chunked.Bytes())
|
|
|
|
}
|
|
|
|
func TestUnchunkerUnchunksChunker(t *testing.T) {
|
|
|
|
f := func(b []byte) bool {
|
|
|
|
buf := bytes.NewBuffer(b)
|
|
ch := NewChunker(buf)
|
|
unch := NewUnchunker(&ch)
|
|
var tx bytes.Buffer
|
|
_, err := io.Copy(&tx, unch)
|
|
if err != nil {
|
|
return false
|
|
}
|
|
|
|
return reflect.DeepEqual(b, tx.Bytes())
|
|
}
|
|
|
|
cfg := quick.Config{
|
|
MaxCount: 3 * int(ChunkBufSize),
|
|
MaxCountScale: 2.0,
|
|
}
|
|
|
|
if err := quick.Check(f, &cfg); err != nil {
|
|
t.Error(err)
|
|
}
|
|
|
|
}
|