mirror of https://github.com/minio/minio.git
231 lines
6.3 KiB
Go
231 lines
6.3 KiB
Go
// Copyright (c) 2015-2021 MinIO, Inc.
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//
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// This file is part of MinIO Object Storage stack
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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package cmd
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import (
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"errors"
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"testing"
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"time"
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"github.com/minio/minio/internal/bucket/lifecycle"
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)
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func (x xlMetaV2) listFreeVersions(volume, path string) ([]FileInfo, error) {
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fivs, err := x.ListVersions(volume, path)
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if err != nil {
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return nil, err
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}
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n := 0
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for _, fiv := range fivs {
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if fiv.TierFreeVersion() {
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fivs[n] = fiv
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n++
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}
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}
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fivs = fivs[:n]
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return fivs, nil
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}
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func TestFreeVersion(t *testing.T) {
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fatalErr := func(err error) {
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t.Helper()
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if err != nil {
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t.Fatal(err)
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}
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}
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// Add a version with tiered content, one with local content
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xl := xlMetaV2{}
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counter := 1
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report := func() {
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t.Helper()
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// t.Logf("versions (%d): len = %d", counter, len(xl.versions))
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counter++
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}
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fi := FileInfo{
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Volume: "volume",
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Name: "object-name",
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VersionID: "00000000-0000-0000-0000-000000000001",
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IsLatest: true,
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Deleted: false,
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TransitionStatus: "",
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DataDir: "bffea160-ca7f-465f-98bc-9b4f1c3ba1ef",
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XLV1: false,
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ModTime: time.Now(),
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Size: 0,
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Mode: 0,
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Metadata: nil,
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Parts: nil,
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Erasure: ErasureInfo{
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Algorithm: ReedSolomon.String(),
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DataBlocks: 4,
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ParityBlocks: 2,
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BlockSize: 10000,
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Index: 1,
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Distribution: []int{1, 2, 3, 4, 5, 6, 7, 8},
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Checksums: []ChecksumInfo{{
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PartNumber: 1,
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Algorithm: HighwayHash256S,
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Hash: nil,
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}},
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},
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MarkDeleted: false,
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// DeleteMarkerReplicationStatus: "",
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// VersionPurgeStatus: "",
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NumVersions: 1,
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SuccessorModTime: time.Time{},
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}
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// Add a version with local content
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fatalErr(xl.AddVersion(fi))
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report()
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// Add null version with tiered content
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tierfi := fi
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tierfi.VersionID = ""
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fatalErr(xl.AddVersion(tierfi))
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report()
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tierfi.TransitionStatus = lifecycle.TransitionComplete
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tierfi.TransitionedObjName = mustGetUUID()
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tierfi.TransitionTier = "MINIOTIER-1"
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var err error
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_, err = xl.DeleteVersion(tierfi)
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fatalErr(err)
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report()
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fvIDs := []string{
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"00000000-0000-0000-0000-0000000000f1",
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"00000000-0000-0000-0000-0000000000f2",
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}
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// Simulate overwrite of null version
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newtierfi := tierfi
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newtierfi.SetTierFreeVersionID(fvIDs[0])
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fatalErr(xl.AddFreeVersion(newtierfi))
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report()
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fatalErr(xl.AddVersion(newtierfi))
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report()
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// Simulate removal of null version
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newtierfi.TransitionTier = ""
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newtierfi.TransitionedObjName = ""
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newtierfi.TransitionStatus = ""
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newtierfi.SetTierFreeVersionID(fvIDs[1])
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report()
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_, err = xl.DeleteVersion(newtierfi)
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report()
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fatalErr(err)
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// At this point the version stack must look as below,
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// v3 --> free version 00000000-0000-0000-0000-0000000000f2 (from removal of null version)
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// v2 --> free version 00000000-0000-0000-0000-0000000000f1 (from overwriting of null version )
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// v1 --> non-free version 00000000-0000-0000-0000-000000000001
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// Check number of free-versions
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freeVersions, err := xl.listFreeVersions(newtierfi.Volume, newtierfi.Name)
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if err != nil {
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t.Fatalf("failed to list free versions %v", err)
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}
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if len(freeVersions) != 2 {
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t.Fatalf("Expected two free versions but got %d", len(freeVersions))
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}
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freeVersionsTests := []struct {
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vol string
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name string
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inclFreeVers bool
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afterFn func(fi FileInfo) (string, error)
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expectedFree bool
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expectedErr error
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}{
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// ToFileInfo with 'inclFreeVers = true' should return the latest
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// non-free version if one is present
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{
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vol: newtierfi.Volume,
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name: newtierfi.Name,
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inclFreeVers: true,
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afterFn: xl.DeleteVersion,
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expectedFree: false,
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},
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// ToFileInfo with 'inclFreeVers = true' must return the latest free
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// version when no non-free versions are present.
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{
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vol: newtierfi.Volume,
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name: newtierfi.Name,
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inclFreeVers: true,
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expectedFree: true,
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},
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// ToFileInfo with 'inclFreeVers = false' must return errFileNotFound
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// when no non-free version exist.
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{
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vol: newtierfi.Volume,
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name: newtierfi.Name,
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inclFreeVers: false,
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expectedErr: errFileNotFound,
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},
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}
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for _, ft := range freeVersionsTests {
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fi, err := xl.ToFileInfo(ft.vol, ft.name, "", ft.inclFreeVers)
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if err != nil && !errors.Is(err, ft.expectedErr) {
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t.Fatalf("ToFileInfo failed due to %v", err)
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}
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if got := fi.TierFreeVersion(); got != ft.expectedFree {
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t.Fatalf("Expected free-version=%v but got free-version=%v", ft.expectedFree, got)
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}
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if ft.afterFn != nil {
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_, err = ft.afterFn(fi)
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if err != nil {
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t.Fatalf("ft.afterFn failed with err %v", err)
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}
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}
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}
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// Simulate scanner removing free-version
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freefi := newtierfi
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for _, fvID := range fvIDs {
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freefi.VersionID = fvID
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_, err = xl.DeleteVersion(freefi)
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fatalErr(err)
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}
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report()
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// Check number of free-versions
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freeVersions, err = xl.listFreeVersions(newtierfi.Volume, newtierfi.Name)
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if err != nil {
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t.Fatalf("failed to list free versions %v", err)
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}
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if len(freeVersions) != 0 {
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t.Fatalf("Expected zero free version but got %d", len(freeVersions))
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}
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report()
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// Adding a free version to a version with no tiered content.
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newfi := fi
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newfi.SetTierFreeVersionID("00000000-0000-0000-0000-0000000000f3")
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fatalErr(xl.AddFreeVersion(newfi)) // this shouldn't add a free-version
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report()
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// Check number of free-versions
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freeVersions, err = xl.listFreeVersions(newtierfi.Volume, newtierfi.Name)
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if err != nil {
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t.Fatalf("failed to list free versions %v", err)
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}
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if len(freeVersions) != 0 {
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t.Fatalf("Expected zero free version but got %d", len(freeVersions))
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}
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}
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