1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
|
package reverse_test
import (
"bytes"
"fmt"
"os"
"testing"
"github.com/rfjakob/gocryptfs/tests/test_helpers"
)
var dirA, dirB, x240 string
func TestMain(m *testing.M) {
x240 = string(bytes.Repeat([]byte("x"), 240))
dirA = test_helpers.TmpDir + "/a"
dirB = test_helpers.TmpDir + "/b"
os.Mkdir(dirA, 0700)
os.Mkdir(dirB, 0700)
generateFiles(dirA)
test_helpers.MountOrExit(dirA, dirB, "-zerokey", "-reverse")
r := m.Run()
test_helpers.UnmountPanic(dirB)
os.RemoveAll(test_helpers.TmpDir)
os.Exit(r)
}
func genName(i int) string {
return fmt.Sprintf("%04d.%s", i, x240)
}
// Create 10000 files with long names
func generateFiles(dir string) {
for i := 0; i < 100000; i++ {
n := genName(i)
f, err := os.Create(dir + "/" + n)
if err != nil {
panic(err)
}
f.Close()
}
}
func TestLongnameStat(t *testing.T) {
_, err := os.Stat(dirA + "/" + genName(0))
if err != nil {
t.Error(err)
}
_, err = os.Stat(dirA + "/" + genName(9999))
if err != nil {
t.Error(err)
}
}
func BenchmarkLongnameStat(b *testing.B) {
dirFd, err := os.Open(dirB)
if err != nil {
b.Fatal(err)
}
encryptedNames, err := dirFd.Readdirnames(-1)
if err != nil {
b.Fatal(err)
}
l := len(encryptedNames)
dirFd.Close()
b.ResetTimer()
for i := 0; i < b.N; i++ {
_, err := os.Stat(dirB + "/" + encryptedNames[i%l])
if err != nil {
b.Fatal(err)
}
}
}
|
