mirror of
https://github.com/seaweedfs/seaweedfs.git
synced 2024-12-25 10:17:55 +08:00
114 lines
2.3 KiB
Go
114 lines
2.3 KiB
Go
package filesys
|
|
|
|
import (
|
|
"bytes"
|
|
"math/rand"
|
|
"testing"
|
|
)
|
|
|
|
func TestContinuousIntervals_AddIntervalAppend(t *testing.T) {
|
|
|
|
c := &ContinuousIntervals{}
|
|
|
|
// 25, 25, 25
|
|
c.AddInterval(getBytes(25, 3), 0)
|
|
// _, _, 23, 23, 23, 23
|
|
c.AddInterval(getBytes(23, 4), 2)
|
|
|
|
expectedData(t, c, 0, 25, 25, 23, 23, 23, 23)
|
|
|
|
}
|
|
|
|
func TestContinuousIntervals_AddIntervalInnerOverwrite(t *testing.T) {
|
|
|
|
c := &ContinuousIntervals{}
|
|
|
|
// 25, 25, 25, 25, 25
|
|
c.AddInterval(getBytes(25, 5), 0)
|
|
// _, _, 23, 23
|
|
c.AddInterval(getBytes(23, 2), 2)
|
|
|
|
expectedData(t, c, 0, 25, 25, 23, 23, 25)
|
|
|
|
}
|
|
|
|
func TestContinuousIntervals_AddIntervalFullOverwrite(t *testing.T) {
|
|
|
|
c := &ContinuousIntervals{}
|
|
|
|
// 1,
|
|
c.AddInterval(getBytes(1, 1), 0)
|
|
// _, 2,
|
|
c.AddInterval(getBytes(2, 1), 1)
|
|
// _, _, 3, 3, 3
|
|
c.AddInterval(getBytes(3, 3), 2)
|
|
// _, _, _, 4, 4, 4
|
|
c.AddInterval(getBytes(4, 3), 3)
|
|
|
|
expectedData(t, c, 0, 1, 2, 3, 4, 4, 4)
|
|
|
|
}
|
|
|
|
func TestContinuousIntervals_RealCase1(t *testing.T) {
|
|
|
|
c := &ContinuousIntervals{}
|
|
|
|
// 25,
|
|
c.AddInterval(getBytes(25, 1), 0)
|
|
// _, _, _, _, 23, 23
|
|
c.AddInterval(getBytes(23, 2), 4)
|
|
// _, _, _, 24, 24, 24, 24
|
|
c.AddInterval(getBytes(24, 4), 3)
|
|
|
|
// _, 22, 22
|
|
c.AddInterval(getBytes(22, 2), 1)
|
|
|
|
expectedData(t, c, 0, 25, 22, 22, 24, 24, 24, 24)
|
|
|
|
}
|
|
|
|
func TestRandomWrites(t *testing.T) {
|
|
|
|
c := &ContinuousIntervals{}
|
|
|
|
data := make([]byte, 1024)
|
|
|
|
for i := 0; i < 1024; i++ {
|
|
|
|
start, stop := rand.Intn(len(data)), rand.Intn(len(data))
|
|
if start > stop {
|
|
start, stop = stop, start
|
|
}
|
|
|
|
rand.Read(data[start : stop+1])
|
|
|
|
c.AddInterval(data[start:stop+1], int64(start))
|
|
|
|
expectedData(t, c, 0, data...)
|
|
|
|
}
|
|
|
|
}
|
|
|
|
func expectedData(t *testing.T, c *ContinuousIntervals, offset int, data ...byte) {
|
|
start, stop := int64(offset), int64(offset+len(data))
|
|
for _, list := range c.lists {
|
|
nodeStart, nodeStop := max(start, list.Head.Offset), min(stop, list.Head.Offset+list.Size())
|
|
if nodeStart < nodeStop {
|
|
buf := make([]byte, nodeStop-nodeStart)
|
|
list.ReadData(buf, nodeStart, nodeStop)
|
|
if bytes.Compare(buf, data[nodeStart-start:nodeStop-start]) != 0 {
|
|
t.Errorf("expected %v actual %v", data[nodeStart-start:nodeStop-start], buf)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
func getBytes(content byte, length int) []byte {
|
|
data := make([]byte, length)
|
|
for i := 0; i < length; i++ {
|
|
data[i] = content
|
|
}
|
|
return data
|
|
}
|