minio/cmd/bitrot_test.go
Krishna Srinivas 51ec61ee94 Fix healing whole file bitrot (#7123)
* Use 0-byte file for bitrot verification of whole-file-bitrot files

Also pass the right checksum information for bitrot verification

* Copy xlMeta info from latest meta except []checksums and []Parts while healing
2019-01-20 07:58:40 +05:30

85 lines
1.9 KiB
Go

/*
* Minio Cloud Storage, (C) 2018 Minio, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package cmd
import (
"io"
"io/ioutil"
"log"
"os"
"testing"
)
func testBitrotReaderWriterAlgo(t *testing.T, bitrotAlgo BitrotAlgorithm) {
tmpDir, err := ioutil.TempDir("", "")
if err != nil {
log.Fatal(err)
}
defer os.RemoveAll(tmpDir)
volume := "testvol"
filePath := "testfile"
disk, err := newPosix(tmpDir)
if err != nil {
t.Fatal(err)
}
disk.MakeVol(volume)
writer := newBitrotWriter(disk, volume, filePath, 35, bitrotAlgo, 10)
_, err = writer.Write([]byte("aaaaaaaaaa"))
if err != nil {
log.Fatal(err)
}
_, err = writer.Write([]byte("aaaaaaaaaa"))
if err != nil {
log.Fatal(err)
}
_, err = writer.Write([]byte("aaaaaaaaaa"))
if err != nil {
log.Fatal(err)
}
_, err = writer.Write([]byte("aaaaa"))
if err != nil {
log.Fatal(err)
}
writer.(io.Closer).Close()
reader := newBitrotReader(disk, volume, filePath, 35, bitrotAlgo, bitrotWriterSum(writer), 10)
b := make([]byte, 10)
if _, err = reader.ReadAt(b, 0); err != nil {
log.Fatal(err)
}
if _, err = reader.ReadAt(b, 10); err != nil {
log.Fatal(err)
}
if _, err = reader.ReadAt(b, 20); err != nil {
log.Fatal(err)
}
if _, err = reader.ReadAt(b[:5], 30); err != nil {
log.Fatal(err)
}
}
func TestAllBitrotAlgorithms(t *testing.T) {
for bitrotAlgo := range bitrotAlgorithms {
testBitrotReaderWriterAlgo(t, bitrotAlgo)
}
}