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minio/cmd/fs-v1-metadata_test.go

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/*
* Minio Cloud Storage, (C) 2016 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 (
"bytes"
"context"
"os"
"path/filepath"
"reflect"
"testing"
)
// Tests ToObjectInfo function.
func TestFSV1MetadataObjInfo(t *testing.T) {
fsMeta := newFSMetaV1()
objInfo := fsMeta.ToObjectInfo("testbucket", "testobject", nil)
if objInfo.Size != 0 {
t.Fatal("Unexpected object info value for Size", objInfo.Size)
}
if objInfo.ModTime != timeSentinel {
t.Fatal("Unexpected object info value for ModTime ", objInfo.ModTime)
}
if objInfo.IsDir {
t.Fatal("Unexpected object info value for IsDir", objInfo.IsDir)
}
}
// TestReadFSMetadata - readFSMetadata testing with a healthy and faulty disk
func TestReadFSMetadata(t *testing.T) {
disk := filepath.Join(globalTestTmpDir, "minio-"+nextSuffix())
defer os.RemoveAll(disk)
obj := initFSObjects(disk, t)
fs := obj.(*FSObjects)
bucketName := "bucket"
objectName := "object"
if err := obj.MakeBucketWithLocation(context.Background(), bucketName, ""); err != nil {
t.Fatal("Unexpected err: ", err)
}
if _, err := obj.PutObject(context.Background(), bucketName, objectName, mustGetHashReader(t, bytes.NewReader([]byte("abcd")), int64(len("abcd")), "", ""), nil); err != nil {
t.Fatal("Unexpected err: ", err)
}
// Construct the full path of fs.json
fsPath := pathJoin(bucketMetaPrefix, bucketName, objectName, "fs.json")
fsPath = pathJoin(fs.fsPath, minioMetaBucket, fsPath)
rlk, err := fs.rwPool.Open(fsPath)
if err != nil {
t.Fatal("Unexpected error ", err)
}
defer rlk.Close()
// Regular fs metadata reading, no errors expected
fsMeta := fsMetaV1{}
if _, err = fsMeta.ReadFrom(context.Background(), rlk.LockedFile); err != nil {
t.Fatal("Unexpected error ", err)
}
}
// TestWriteFSMetadata - tests of writeFSMetadata with healthy disk.
func TestWriteFSMetadata(t *testing.T) {
disk := filepath.Join(globalTestTmpDir, "minio-"+nextSuffix())
defer os.RemoveAll(disk)
obj := initFSObjects(disk, t)
fs := obj.(*FSObjects)
bucketName := "bucket"
objectName := "object"
if err := obj.MakeBucketWithLocation(context.Background(), bucketName, ""); err != nil {
t.Fatal("Unexpected err: ", err)
}
if _, err := obj.PutObject(context.Background(), bucketName, objectName, mustGetHashReader(t, bytes.NewReader([]byte("abcd")), int64(len("abcd")), "", ""), nil); err != nil {
t.Fatal("Unexpected err: ", err)
}
// Construct the full path of fs.json
fsPath := pathJoin(bucketMetaPrefix, bucketName, objectName, "fs.json")
fsPath = pathJoin(fs.fsPath, minioMetaBucket, fsPath)
rlk, err := fs.rwPool.Open(fsPath)
if err != nil {
t.Fatal("Unexpected error ", err)
}
defer rlk.Close()
// FS metadata reading, no errors expected (healthy disk)
fsMeta := fsMetaV1{}
_, err = fsMeta.ReadFrom(context.Background(), rlk.LockedFile)
if err != nil {
t.Fatal("Unexpected error ", err)
}
if fsMeta.Version != fsMetaVersion {
t.Fatalf("Unexpected version %s", fsMeta.Version)
}
}
func TestFSChecksumV1MarshalJSON(t *testing.T) {
var cs FSChecksumInfoV1
testCases := []struct {
checksum FSChecksumInfoV1
expectedResult string
}{
{cs, `{"algorithm":"","blocksize":0,"hashes":null}`},
{FSChecksumInfoV1{Algorithm: "highwayhash", Blocksize: 500}, `{"algorithm":"highwayhash","blocksize":500,"hashes":null}`},
{FSChecksumInfoV1{Algorithm: "highwayhash", Blocksize: 10, Hashes: [][]byte{[]byte("hello")}}, `{"algorithm":"highwayhash","blocksize":10,"hashes":["68656c6c6f"]}`},
}
for _, testCase := range testCases {
data, _ := testCase.checksum.MarshalJSON()
if testCase.expectedResult != string(data) {
t.Fatalf("expected: %v, got: %v", testCase.expectedResult, string(data))
}
}
}
func TestFSChecksumV1UnMarshalJSON(t *testing.T) {
var cs FSChecksumInfoV1
testCases := []struct {
data []byte
expectedResult FSChecksumInfoV1
}{
{[]byte(`{"algorithm":"","blocksize":0,"hashes":null}`), cs},
{[]byte(`{"algorithm":"highwayhash","blocksize":500,"hashes":null}`), FSChecksumInfoV1{Algorithm: "highwayhash", Blocksize: 500}},
{[]byte(`{"algorithm":"highwayhash","blocksize":10,"hashes":["68656c6c6f"]}`), FSChecksumInfoV1{Algorithm: "highwayhash", Blocksize: 10, Hashes: [][]byte{[]byte("hello")}}},
}
for _, testCase := range testCases {
err := (&cs).UnmarshalJSON(testCase.data)
if err != nil {
t.Fatal("Unexpected error during checksum unmarshalling ", err)
}
if !reflect.DeepEqual(testCase.expectedResult, cs) {
t.Fatalf("expected: %v, got: %v", testCase.expectedResult, cs)
}
}
}