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authorJakob Unterwurzacher2015-09-30 23:42:18 +0200
committerJakob Unterwurzacher2015-09-30 23:42:18 +0200
commit3fef613591b6831d0ebc8bd2aff4264346a1d047 (patch)
treeac4659e9e56357b84fb248b334f03fe97e20b450
parentb835f83fd54944de0aa87a4e53073c1204450fda (diff)
tests: Add append test
-rw-r--r--main_test.go33
-rw-r--r--pathfs_frontend/file.go3
2 files changed, 35 insertions, 1 deletions
diff --git a/main_test.go b/main_test.go
index 8d216ac..4f51d00 100644
--- a/main_test.go
+++ b/main_test.go
@@ -1,6 +1,7 @@
package main
import (
+ "bytes"
"crypto/md5"
"encoding/hex"
"fmt"
@@ -145,6 +146,38 @@ func TestTruncate(t *testing.T) {
}
}
+func TestAppend(t *testing.T) {
+ fn := plainDir + "append"
+ file, err := os.Create(fn)
+ if err != nil {
+ t.FailNow()
+ }
+ data := []byte("testdata123456789") // length 17
+ var buf bytes.Buffer
+ var hashWant string
+ for i := 0; i <= 500; i++ {
+ file.Write(data)
+ buf.Write(data)
+ bin := md5.Sum(buf.Bytes())
+ hashWant = hex.EncodeToString(bin[:])
+ hashActual := md5fn(fn)
+ if hashWant != hashActual {
+ t.FailNow()
+ }
+ }
+
+ // Overwrite with the same data
+ // Hash must stay the same
+ file.Seek(0, 0)
+ for i := 0; i <= 500; i++ {
+ file.Write(data)
+ hashActual := md5fn(fn)
+ if hashWant != hashActual {
+ t.FailNow()
+ }
+ }
+}
+
func BenchmarkStreamWrite(t *testing.B) {
buf := make([]byte, 1024*1024)
t.SetBytes(int64(len(buf)))
diff --git a/pathfs_frontend/file.go b/pathfs_frontend/file.go
index fe346b6..a4ed30b 100644
--- a/pathfs_frontend/file.go
+++ b/pathfs_frontend/file.go
@@ -70,11 +70,12 @@ func (f *file) doRead(off uint64, length uint64) ([]byte, fuse.Status) {
cryptfs.Warn.Printf("read: ReadAt: %s\n", err.Error())
return nil, fuse.ToStatus(err)
}
- cryptfs.Debug.Printf("ReadAt length=%d offset=%d -> n=%d len=%d\n", alignedLength, alignedOffset, n, len(ciphertext))
+ cryptfs.Debug.Printf("ReadAt offset=%d length=%d -> n=%d len=%d\n", alignedLength, alignedOffset, n, len(ciphertext))
// Decrypt it
plaintext, err := f.cfs.DecryptBlocks(ciphertext)
if err != nil {
+ cryptfs.Warn.Printf("Corrupt block at offset=%d\n", off + uint64(len(plaintext)))
cryptfs.Warn.Printf("doRead: returning IO error\n")
return nil, fuse.EIO
}