mirror of
https://github.com/seaweedfs/seaweedfs.git
synced 2024-12-14 02:09:08 +08:00
100 lines
2.6 KiB
Go
100 lines
2.6 KiB
Go
package needle
|
|
|
|
import (
|
|
"fmt"
|
|
"github.com/chrislusf/seaweedfs/weed/storage/backend"
|
|
"github.com/stretchr/testify/assert"
|
|
"io"
|
|
"os"
|
|
"testing"
|
|
|
|
"github.com/chrislusf/seaweedfs/weed/storage/types"
|
|
)
|
|
|
|
func TestPageRead(t *testing.T) {
|
|
baseFileName := "43"
|
|
offset := int64(8)
|
|
size := types.Size(1153890) // actual file size 1153862
|
|
|
|
datFile, err := os.OpenFile(baseFileName+".dat", os.O_RDONLY, 0644)
|
|
if err != nil {
|
|
t.Fatalf("Open Volume Data File [ERROR]: %v", err)
|
|
}
|
|
datBackend := backend.NewDiskFile(datFile)
|
|
defer datBackend.Close()
|
|
{
|
|
n := new(Needle)
|
|
|
|
bytes, err := ReadNeedleBlob(datBackend, offset, size, Version3)
|
|
if err != nil {
|
|
t.Fatalf("readNeedleBlob: %v", err)
|
|
}
|
|
if err = n.ReadBytes(bytes, offset, size, Version3); err != nil {
|
|
t.Fatalf("readNeedleBlob: %v", err)
|
|
}
|
|
|
|
fmt.Printf("bytes len %d\n", len(bytes))
|
|
fmt.Printf("name %s size %d\n", n.Name, n.Size)
|
|
|
|
fmt.Printf("id %d\n", n.Id)
|
|
fmt.Printf("DataSize %d\n", n.DataSize)
|
|
fmt.Printf("Flags %v\n", n.Flags)
|
|
fmt.Printf("NameSize %d\n", n.NameSize)
|
|
fmt.Printf("MimeSize %d\n", n.MimeSize)
|
|
fmt.Printf("PairsSize %d\n", n.PairsSize)
|
|
fmt.Printf("LastModified %d\n", n.LastModified)
|
|
fmt.Printf("AppendAtNs %d\n", n.AppendAtNs)
|
|
fmt.Printf("Checksum %d\n", n.Checksum)
|
|
}
|
|
|
|
{
|
|
n, bytes, bodyLength, err := ReadNeedleHeader(datBackend, Version3, offset)
|
|
if err != nil {
|
|
t.Fatalf("ReadNeedleHeader: %v", err)
|
|
}
|
|
fmt.Printf("bytes len %d\n", len(bytes))
|
|
fmt.Printf("name %s size %d bodyLength:%d\n", n.Name, n.Size, bodyLength)
|
|
}
|
|
|
|
{
|
|
n := new(Needle)
|
|
checksumValue, err := n.ReadNeedleMeta(datBackend, offset, size, Version3)
|
|
if err != nil {
|
|
t.Fatalf("ReadNeedleHeader: %v", err)
|
|
}
|
|
fmt.Printf("name %s size %d\n", n.Name, n.Size)
|
|
fmt.Printf("id %d\n", n.Id)
|
|
fmt.Printf("DataSize %d\n", n.DataSize)
|
|
fmt.Printf("Flags %v\n", n.Flags)
|
|
fmt.Printf("NameSize %d\n", n.NameSize)
|
|
fmt.Printf("MimeSize %d\n", n.MimeSize)
|
|
fmt.Printf("PairsSize %d\n", n.PairsSize)
|
|
fmt.Printf("LastModified %d\n", n.LastModified)
|
|
fmt.Printf("AppendAtNs %d\n", n.AppendAtNs)
|
|
fmt.Printf("Checksum %d\n", n.Checksum)
|
|
fmt.Printf("Checksum value %d\n", checksumValue)
|
|
|
|
buf := make([]byte, 1024)
|
|
crc := CRC(0)
|
|
for x := int64(0); ; x += 1024 {
|
|
count, err := n.ReadNeedleData(datBackend, offset, buf, x)
|
|
if err != nil {
|
|
if err == io.EOF {
|
|
break
|
|
}
|
|
t.Fatalf("ReadNeedleData: %v", err)
|
|
}
|
|
if count > 0 {
|
|
crc = crc.Update(buf[0:count])
|
|
} else {
|
|
break
|
|
}
|
|
}
|
|
fmt.Printf("read checksum value %d\n", crc.Value())
|
|
|
|
assert.Equal(t, checksumValue, crc.Value(), "validate checksum value")
|
|
|
|
}
|
|
|
|
}
|