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369 lines
11 KiB
369 lines
11 KiB
/*
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* Minio Cloud Storage, (C) 2015, 2016, 2017 Minio, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package cmd
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import (
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"bytes"
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"errors"
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"os"
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"path"
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"strconv"
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"testing"
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"time"
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humanize "github.com/dustin/go-humanize"
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)
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// Tests for reading XL object info.
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func TestXLReadStat(t *testing.T) {
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ExecObjectLayerDiskAlteredTest(t, testXLReadStat)
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}
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func testXLReadStat(obj ObjectLayer, instanceType string, disks []string, t *testing.T) {
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// Setup for the tests.
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bucketName := getRandomBucketName()
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objectName := "test-object"
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// create bucket.
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err := obj.MakeBucketWithLocation(bucketName, "")
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// Stop the test if creation of the bucket fails.
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if err != nil {
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t.Fatalf("%s : %s", instanceType, err.Error())
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}
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// set of byte data for PutObject.
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// object has to be created before running tests for GetObject.
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// this is required even to assert the GetObject data,
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// since dataInserted === dataFetched back is a primary criteria for any object storage this assertion is critical.
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bytesData := []struct {
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byteData []byte
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}{
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{generateBytesData(6 * humanize.MiByte)},
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}
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// set of inputs for uploading the objects before tests for downloading is done.
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putObjectInputs := []struct {
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bucketName string
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objectName string
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contentLength int64
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textData []byte
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metaData map[string]string
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}{
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// case - 1.
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{bucketName, objectName, int64(len(bytesData[0].byteData)), bytesData[0].byteData, make(map[string]string)},
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}
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// iterate through the above set of inputs and upkoad the object.
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for i, input := range putObjectInputs {
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// uploading the object.
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_, err = obj.PutObject(input.bucketName, input.objectName, mustGetHashReader(t, bytes.NewBuffer(input.textData), input.contentLength, input.metaData["etag"], ""), input.metaData)
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// if object upload fails stop the test.
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if err != nil {
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t.Fatalf("Put Object case %d: Error uploading object: <ERROR> %v", i+1, err)
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}
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}
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_, _, err = obj.(*xlObjects).readXLMetaStat(bucketName, objectName)
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if err != nil {
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t.Fatal(err)
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}
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// Remove one disk.
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removeDiskN(disks, 7)
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// Removing disk shouldn't affect reading object info.
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_, _, err = obj.(*xlObjects).readXLMetaStat(bucketName, objectName)
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if err != nil {
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t.Fatal(err)
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}
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for _, disk := range disks {
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os.RemoveAll(path.Join(disk, bucketName))
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}
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_, _, err = obj.(*xlObjects).readXLMetaStat(bucketName, objectName)
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if errorCause(err) != errVolumeNotFound {
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t.Fatal(err)
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}
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}
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// Tests for reading XL meta parts.
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func TestXLReadMetaParts(t *testing.T) {
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ExecObjectLayerDiskAlteredTest(t, testXLReadMetaParts)
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}
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// testListObjectParts - Tests validate listing of object parts when disks go offline.
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func testXLReadMetaParts(obj ObjectLayer, instanceType string, disks []string, t *testing.T) {
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bucketNames := []string{"minio-bucket", "minio-2-bucket"}
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objectNames := []string{"minio-object-1.txt"}
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uploadIDs := []string{}
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// bucketnames[0].
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// objectNames[0].
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// uploadIds [0].
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// Create bucket before intiating NewMultipartUpload.
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err := obj.MakeBucketWithLocation(bucketNames[0], "")
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if err != nil {
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// Failed to create newbucket, abort.
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t.Fatalf("%s : %s", instanceType, err.Error())
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}
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// Initiate Multipart Upload on the above created bucket.
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uploadID, err := obj.NewMultipartUpload(bucketNames[0], objectNames[0], nil)
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if err != nil {
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// Failed to create NewMultipartUpload, abort.
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t.Fatalf("%s : %s", instanceType, err.Error())
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}
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uploadIDs = append(uploadIDs, uploadID)
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// Create multipart parts.
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// Need parts to be uploaded before MultipartLists can be called and tested.
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createPartCases := []struct {
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bucketName string
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objName string
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uploadID string
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PartID int
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inputReaderData string
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inputMd5 string
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intputDataSize int64
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expectedMd5 string
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}{
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// Case 1-4.
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// Creating sequence of parts for same uploadID.
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// Used to ensure that the ListMultipartResult produces one output for the four parts uploaded below for the given upload ID.
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{bucketNames[0], objectNames[0], uploadIDs[0], 1, "abcd", "e2fc714c4727ee9395f324cd2e7f331f", int64(len("abcd")), "e2fc714c4727ee9395f324cd2e7f331f"},
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{bucketNames[0], objectNames[0], uploadIDs[0], 2, "efgh", "1f7690ebdd9b4caf8fab49ca1757bf27", int64(len("efgh")), "1f7690ebdd9b4caf8fab49ca1757bf27"},
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{bucketNames[0], objectNames[0], uploadIDs[0], 3, "ijkl", "09a0877d04abf8759f99adec02baf579", int64(len("abcd")), "09a0877d04abf8759f99adec02baf579"},
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{bucketNames[0], objectNames[0], uploadIDs[0], 4, "mnop", "e132e96a5ddad6da8b07bba6f6131fef", int64(len("abcd")), "e132e96a5ddad6da8b07bba6f6131fef"},
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}
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sha256sum := ""
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// Iterating over creatPartCases to generate multipart chunks.
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for _, testCase := range createPartCases {
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_, perr := obj.PutObjectPart(testCase.bucketName, testCase.objName, testCase.uploadID, testCase.PartID, mustGetHashReader(t, bytes.NewBufferString(testCase.inputReaderData), testCase.intputDataSize, testCase.inputMd5, sha256sum))
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if perr != nil {
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t.Fatalf("%s : %s", instanceType, perr)
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}
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}
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uploadIDPath := path.Join(bucketNames[0], objectNames[0], uploadIDs[0])
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_, err = obj.(*xlObjects).readXLMetaParts(minioMetaMultipartBucket, uploadIDPath)
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if err != nil {
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t.Fatal(err)
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}
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// Remove one disk.
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removeDiskN(disks, 7)
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// Removing disk shouldn't affect reading object parts info.
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_, err = obj.(*xlObjects).readXLMetaParts(minioMetaMultipartBucket, uploadIDPath)
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if err != nil {
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t.Fatal(err)
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}
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for _, disk := range disks {
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os.RemoveAll(path.Join(disk, bucketNames[0]))
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os.RemoveAll(path.Join(disk, minioMetaMultipartBucket, bucketNames[0]))
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}
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_, err = obj.(*xlObjects).readXLMetaParts(minioMetaMultipartBucket, uploadIDPath)
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if errorCause(err) != errFileNotFound {
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t.Fatal(err)
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}
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}
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// Test xlMetaV1.AddObjectPart()
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func TestAddObjectPart(t *testing.T) {
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testCases := []struct {
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partNum int
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expectedIndex int
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}{
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{1, 0},
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{2, 1},
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{4, 2},
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{5, 3},
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{7, 4},
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// Insert part.
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{3, 2},
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// Replace existing part.
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{4, 3},
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// Missing part.
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{6, -1},
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}
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// Setup.
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xlMeta := newXLMetaV1("test-object", 8, 8)
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if !xlMeta.IsValid() {
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t.Fatalf("unable to get xl meta")
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}
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// Test them.
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for _, testCase := range testCases {
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if testCase.expectedIndex > -1 {
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partNumString := strconv.Itoa(testCase.partNum)
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xlMeta.AddObjectPart(testCase.partNum, "part."+partNumString, "etag."+partNumString, int64(testCase.partNum+humanize.MiByte))
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}
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if index := objectPartIndex(xlMeta.Parts, testCase.partNum); index != testCase.expectedIndex {
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t.Fatalf("%+v: expected = %d, got: %d", testCase, testCase.expectedIndex, index)
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}
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}
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}
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// Test objectPartIndex().
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// generates a sample xlMeta data and asserts the output of objectPartIndex() with the expected value.
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func TestObjectPartIndex(t *testing.T) {
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testCases := []struct {
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partNum int
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expectedIndex int
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}{
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{2, 1},
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{1, 0},
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{5, 3},
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{4, 2},
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{7, 4},
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}
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// Setup.
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xlMeta := newXLMetaV1("test-object", 8, 8)
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if !xlMeta.IsValid() {
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t.Fatalf("unable to get xl meta")
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}
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// Add some parts for testing.
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for _, testCase := range testCases {
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partNumString := strconv.Itoa(testCase.partNum)
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xlMeta.AddObjectPart(testCase.partNum, "part."+partNumString, "etag."+partNumString, int64(testCase.partNum+humanize.MiByte))
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}
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// Add failure test case.
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testCases = append(testCases, struct {
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partNum int
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expectedIndex int
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}{6, -1})
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// Test them.
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for _, testCase := range testCases {
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if index := objectPartIndex(xlMeta.Parts, testCase.partNum); index != testCase.expectedIndex {
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t.Fatalf("%+v: expected = %d, got: %d", testCase, testCase.expectedIndex, index)
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}
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}
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}
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// Test xlMetaV1.ObjectToPartOffset().
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func TestObjectToPartOffset(t *testing.T) {
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// Setup.
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xlMeta := newXLMetaV1("test-object", 8, 8)
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if !xlMeta.IsValid() {
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t.Fatalf("unable to get xl meta")
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}
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// Add some parts for testing.
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// Total size of all parts is 5,242,899 bytes.
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for _, partNum := range []int{1, 2, 4, 5, 7} {
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partNumString := strconv.Itoa(partNum)
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xlMeta.AddObjectPart(partNum, "part."+partNumString, "etag."+partNumString, int64(partNum+humanize.MiByte))
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}
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testCases := []struct {
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offset int64
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expectedIndex int
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expectedOffset int64
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expectedErr error
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}{
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{0, 0, 0, nil},
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{1 * humanize.MiByte, 0, 1 * humanize.MiByte, nil},
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{1 + humanize.MiByte, 1, 0, nil},
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{2 + humanize.MiByte, 1, 1, nil},
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// Its valid for zero sized object.
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{-1, 0, -1, nil},
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// Max fffset is always (size - 1).
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{(1 + 2 + 4 + 5 + 7) + (5 * humanize.MiByte) - 1, 4, 1048582, nil},
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// Error if offset is size.
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{(1 + 2 + 4 + 5 + 7) + (5 * humanize.MiByte), 0, 0, InvalidRange{}},
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}
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// Test them.
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for _, testCase := range testCases {
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index, offset, err := xlMeta.ObjectToPartOffset(testCase.offset)
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err = errorCause(err)
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if err != testCase.expectedErr {
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t.Fatalf("%+v: expected = %s, got: %s", testCase, testCase.expectedErr, err)
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}
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if index != testCase.expectedIndex {
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t.Fatalf("%+v: index: expected = %d, got: %d", testCase, testCase.expectedIndex, index)
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}
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if offset != testCase.expectedOffset {
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t.Fatalf("%+v: offset: expected = %d, got: %d", testCase, testCase.expectedOffset, offset)
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}
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}
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}
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// Helper function to check if two xlMetaV1 values are similar.
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func isXLMetaSimilar(m, n xlMetaV1) bool {
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if m.Version != n.Version {
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return false
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}
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if m.Format != n.Format {
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return false
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}
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if len(m.Parts) != len(n.Parts) {
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return false
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}
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return true
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}
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func TestPickValidXLMeta(t *testing.T) {
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obj := "object"
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x1 := newXLMetaV1(obj, 4, 4)
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now := UTCNow()
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x1.Stat.ModTime = now
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invalidX1 := x1
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invalidX1.Version = "invalid-version"
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xs := []xlMetaV1{x1, x1, x1, x1}
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invalidXS := []xlMetaV1{invalidX1, invalidX1, invalidX1, invalidX1}
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testCases := []struct {
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metaArr []xlMetaV1
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modTime time.Time
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xlMeta xlMetaV1
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expectedErr error
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}{
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{
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metaArr: xs,
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modTime: now,
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xlMeta: x1,
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expectedErr: nil,
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},
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{
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metaArr: invalidXS,
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modTime: now,
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xlMeta: invalidX1,
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expectedErr: errors.New("No valid xl.json present"),
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},
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}
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for i, test := range testCases {
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xlMeta, err := pickValidXLMeta(test.metaArr, test.modTime)
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if test.expectedErr != nil {
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if errorCause(err).Error() != test.expectedErr.Error() {
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t.Errorf("Test %d: Expected to fail with %v but received %v",
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i+1, test.expectedErr, err)
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}
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} else {
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if !isXLMetaSimilar(xlMeta, test.xlMeta) {
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t.Errorf("Test %d: Expected %v but received %v",
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i+1, test.xlMeta, xlMeta)
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}
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}
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}
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}
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