minio/cmd/erasure-metadata_test.go

273 lines
7.2 KiB
Go

// Copyright (c) 2015-2021 MinIO, Inc.
//
// This file is part of MinIO Object Storage stack
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package cmd
import (
"context"
"strconv"
"testing"
"time"
"github.com/dustin/go-humanize"
)
const ActualSize = 1000
// Test FileInfo.AddObjectPart()
func TestAddObjectPart(t *testing.T) {
testCases := []struct {
partNum int
expectedIndex int
}{
{1, 0},
{2, 1},
{4, 2},
{5, 3},
{7, 4},
// Insert part.
{3, 2},
// Replace existing part.
{4, 3},
// Missing part.
{6, -1},
}
// Setup.
fi := newFileInfo("test-object", 8, 8)
fi.Erasure.Index = 1
if !fi.IsValid() {
t.Fatalf("unable to get xl meta")
}
// Test them.
for _, testCase := range testCases {
if testCase.expectedIndex > -1 {
partNumString := strconv.Itoa(testCase.partNum)
fi.AddObjectPart(testCase.partNum, "etag."+partNumString, int64(testCase.partNum+humanize.MiByte), ActualSize, UTCNow(), nil, nil)
}
if index := objectPartIndex(fi.Parts, testCase.partNum); index != testCase.expectedIndex {
t.Fatalf("%+v: expected = %d, got: %d", testCase, testCase.expectedIndex, index)
}
}
}
// Test objectPartIndex(). generates a sample FileInfo data and asserts
// the output of objectPartIndex() with the expected value.
func TestObjectPartIndex(t *testing.T) {
testCases := []struct {
partNum int
expectedIndex int
}{
{2, 1},
{1, 0},
{5, 3},
{4, 2},
{7, 4},
}
// Setup.
fi := newFileInfo("test-object", 8, 8)
fi.Erasure.Index = 1
if !fi.IsValid() {
t.Fatalf("unable to get xl meta")
}
// Add some parts for testing.
for _, testCase := range testCases {
partNumString := strconv.Itoa(testCase.partNum)
fi.AddObjectPart(testCase.partNum, "etag."+partNumString, int64(testCase.partNum+humanize.MiByte), ActualSize, UTCNow(), nil, nil)
}
// Add failure test case.
testCases = append(testCases, struct {
partNum int
expectedIndex int
}{6, -1})
// Test them.
for _, testCase := range testCases {
if index := objectPartIndex(fi.Parts, testCase.partNum); index != testCase.expectedIndex {
t.Fatalf("%+v: expected = %d, got: %d", testCase, testCase.expectedIndex, index)
}
}
}
// Test FileInfo.ObjectToPartOffset().
func TestObjectToPartOffset(t *testing.T) {
// Setup.
fi := newFileInfo("test-object", 8, 8)
fi.Erasure.Index = 1
if !fi.IsValid() {
t.Fatalf("unable to get xl meta")
}
// Add some parts for testing.
// Total size of all parts is 5,242,899 bytes.
for _, partNum := range []int{1, 2, 4, 5, 7} {
partNumString := strconv.Itoa(partNum)
fi.AddObjectPart(partNum, "etag."+partNumString, int64(partNum+humanize.MiByte), ActualSize, UTCNow(), nil, nil)
}
testCases := []struct {
offset int64
expectedIndex int
expectedOffset int64
expectedErr error
}{
{0, 0, 0, nil},
{1 * humanize.MiByte, 0, 1 * humanize.MiByte, nil},
{1 + humanize.MiByte, 1, 0, nil},
{2 + humanize.MiByte, 1, 1, nil},
// Its valid for zero sized object.
{-1, 0, -1, nil},
// Max fffset is always (size - 1).
{(1 + 2 + 4 + 5 + 7) + (5 * humanize.MiByte) - 1, 4, 1048582, nil},
// Error if offset is size.
{(1 + 2 + 4 + 5 + 7) + (5 * humanize.MiByte), 0, 0, InvalidRange{}},
}
// Test them.
for _, testCase := range testCases {
index, offset, err := fi.ObjectToPartOffset(context.Background(), testCase.offset)
if err != testCase.expectedErr {
t.Fatalf("%+v: expected = %s, got: %s", testCase, testCase.expectedErr, err)
}
if index != testCase.expectedIndex {
t.Fatalf("%+v: index: expected = %d, got: %d", testCase, testCase.expectedIndex, index)
}
if offset != testCase.expectedOffset {
t.Fatalf("%+v: offset: expected = %d, got: %d", testCase, testCase.expectedOffset, offset)
}
}
}
func TestFindFileInfoInQuorum(t *testing.T) {
getNFInfo := func(n int, quorum int, t int64, dataDir string) []FileInfo {
fi := newFileInfo("test", 8, 8)
fi.AddObjectPart(1, "etag", 100, 100, UTCNow(), nil, nil)
fi.ModTime = time.Unix(t, 0)
fi.DataDir = dataDir
fis := make([]FileInfo, n)
for i := range fis {
fis[i] = fi
fis[i].Erasure.Index = i + 1
quorum--
if quorum == 0 {
break
}
}
return fis
}
tests := []struct {
fis []FileInfo
modTime time.Time
expectedErr error
expectedQuorum int
}{
{
fis: getNFInfo(16, 16, 1603863445, "36a21454-a2ca-11eb-bbaa-93a81c686f21"),
modTime: time.Unix(1603863445, 0),
expectedErr: nil,
expectedQuorum: 8,
},
{
fis: getNFInfo(16, 7, 1603863445, "36a21454-a2ca-11eb-bbaa-93a81c686f21"),
modTime: time.Unix(1603863445, 0),
expectedErr: errErasureReadQuorum,
expectedQuorum: 8,
},
{
fis: getNFInfo(16, 16, 1603863445, "36a21454-a2ca-11eb-bbaa-93a81c686f21"),
modTime: time.Unix(1603863445, 0),
expectedErr: errErasureReadQuorum,
expectedQuorum: 0,
},
}
for _, test := range tests {
test := test
t.Run("", func(t *testing.T) {
_, err := findFileInfoInQuorum(context.Background(), test.fis, test.modTime, "", test.expectedQuorum)
if err != test.expectedErr {
t.Errorf("Expected %s, got %s", test.expectedErr, err)
}
})
}
}
func TestTransitionInfoEquals(t *testing.T) {
inputs := []struct {
tier string
remoteObjName string
remoteVersionID string
status string
}{
{
tier: "S3TIER-1",
remoteObjName: mustGetUUID(),
remoteVersionID: mustGetUUID(),
status: "complete",
},
{
tier: "S3TIER-2",
remoteObjName: mustGetUUID(),
remoteVersionID: mustGetUUID(),
status: "complete",
},
}
var i uint
for i = 0; i < 8; i++ {
fi := FileInfo{
TransitionTier: inputs[0].tier,
TransitionedObjName: inputs[0].remoteObjName,
TransitionVersionID: inputs[0].remoteVersionID,
TransitionStatus: inputs[0].status,
}
ofi := fi
if i&(1<<0) != 0 {
ofi.TransitionTier = inputs[1].tier
}
if i&(1<<1) != 0 {
ofi.TransitionedObjName = inputs[1].remoteObjName
}
if i&(1<<2) != 0 {
ofi.TransitionVersionID = inputs[1].remoteVersionID
}
actual := fi.TransitionInfoEquals(ofi)
if i == 0 && !actual {
t.Fatalf("Test %d: Expected FileInfo's transition info to be equal: fi %v ofi %v", i, fi, ofi)
}
if i != 0 && actual {
t.Fatalf("Test %d: Expected FileInfo's transition info to be inequal: fi %v ofi %v", i, fi, ofi)
}
}
fi := FileInfo{
TransitionTier: inputs[0].tier,
TransitionedObjName: inputs[0].remoteObjName,
TransitionVersionID: inputs[0].remoteVersionID,
TransitionStatus: inputs[0].status,
}
ofi := FileInfo{}
if fi.TransitionInfoEquals(ofi) {
t.Fatalf("Expected to be inequal: fi %v ofi %v", fi, ofi)
}
}