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package integration_tests
import (
"crypto/md5"
"encoding/hex"
"fmt"
"io/ioutil"
"os"
"os/exec"
"testing"
"github.com/rfjakob/gocryptfs/cryptfs"
)
// Note: the code assumes that all have a trailing slash
const tmpDir = "/tmp/gocryptfs_main_test/"
const defaultPlainDir = tmpDir + "plain/"
const defaultCipherDir = tmpDir + "cipher/"
const gocryptfsBinary = "../gocryptfs"
func resetTmpDir() {
fu := exec.Command("fusermount", "-z", "-u", defaultPlainDir)
fu.Run()
err := os.RemoveAll(tmpDir)
if err != nil {
fmt.Println(err)
os.Exit(1)
}
err = os.MkdirAll(defaultPlainDir, 0777)
if err != nil {
fmt.Println(err)
os.Exit(1)
}
err = os.MkdirAll(defaultCipherDir, 0777)
if err != nil {
fmt.Println(err)
os.Exit(1)
}
err = cryptfs.WriteDirIV(defaultCipherDir)
if err != nil {
fmt.Println(err)
os.Exit(1)
}
}
// mount CIPHERDIR "c" on PLAINDIR "p"
func mount(c string, p string, extraArgs ...string) {
var args []string
args = append(args, extraArgs...)
//args = append(args, "--fusedebug")
args = append(args, c)
args = append(args, p)
cmd := exec.Command(gocryptfsBinary, args...)
if testing.Verbose() {
cmd.Stdout = os.Stdout
cmd.Stderr = os.Stderr
}
err := cmd.Run()
if err != nil {
fmt.Println(err)
os.Exit(1)
}
}
// unmount PLAINDIR "p"
func unmount(p string) error {
fu := exec.Command("fusermount", "-u", "-z", p)
fu.Stdout = os.Stdout
fu.Stderr = os.Stderr
err := fu.Run()
if err != nil {
fmt.Println(err)
}
return err
}
// Return md5 string for file "filename"
func md5fn(filename string) string {
buf, err := ioutil.ReadFile(filename)
if err != nil {
fmt.Printf("ReadFile: %v\n", err)
return ""
}
return md5hex(buf)
}
// Return md5 string for "buf"
func md5hex(buf []byte) string {
rawHash := md5.Sum(buf)
hash := hex.EncodeToString(rawHash[:])
return hash
}
// Verify that the file size equals "want". This checks:
// 1) Size reported by Stat()
// 2) Number of bytes returned when reading the whole file
func verifySize(t *testing.T, path string, want int) {
buf, err := ioutil.ReadFile(path)
if err != nil {
t.Errorf("ReadFile failed: %v", err)
} else if len(buf) != want {
t.Errorf("wrong read size: got=%d want=%d", len(buf), want)
}
fi, err := os.Stat(path)
if err != nil {
t.Errorf("Stat failed: %v", err)
} else if fi.Size() != int64(want) {
t.Errorf("wrong stat file size, got=%d want=%d", fi.Size(), want)
}
}
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