github.com/cockroachdb/pebble@v0.0.0-20231214172447-ab4952c5f87b/objstorage/objstorageprovider/remoteobjcat/version_edit_test.go (about)

     1  // Copyright 2023 The LevelDB-Go and Pebble Authors. All rights reserved. Use
     2  // of this source code is governed by a BSD-style license that can be found in
     3  // the LICENSE file.
     4  
     5  package remoteobjcat
     6  
     7  import (
     8  	"bytes"
     9  	"strings"
    10  	"testing"
    11  
    12  	"github.com/cockroachdb/errors"
    13  	"github.com/cockroachdb/pebble/internal/base"
    14  	"github.com/cockroachdb/pebble/objstorage"
    15  	"github.com/kr/pretty"
    16  )
    17  
    18  func TestVersionEditRoundTrip(t *testing.T) {
    19  	for _, ve := range []VersionEdit{
    20  		{},
    21  		{
    22  			CreatorID: 12345,
    23  		},
    24  		{
    25  			NewObjects: []RemoteObjectMetadata{
    26  				{
    27  					FileNum:          base.FileNum(1).DiskFileNum(),
    28  					FileType:         base.FileTypeTable,
    29  					CreatorID:        12,
    30  					CreatorFileNum:   base.FileNum(123).DiskFileNum(),
    31  					CleanupMethod:    objstorage.SharedNoCleanup,
    32  					Locator:          "",
    33  					CustomObjectName: "foo",
    34  				},
    35  			},
    36  		},
    37  		{
    38  			DeletedObjects: []base.DiskFileNum{base.FileNum(1).DiskFileNum()},
    39  		},
    40  		{
    41  			CreatorID: 12345,
    42  			NewObjects: []RemoteObjectMetadata{
    43  				{
    44  					FileNum:          base.FileNum(1).DiskFileNum(),
    45  					FileType:         base.FileTypeTable,
    46  					CreatorID:        12,
    47  					CreatorFileNum:   base.FileNum(123).DiskFileNum(),
    48  					CleanupMethod:    objstorage.SharedRefTracking,
    49  					Locator:          "foo",
    50  					CustomObjectName: "",
    51  				},
    52  				{
    53  					FileNum:          base.FileNum(2).DiskFileNum(),
    54  					FileType:         base.FileTypeTable,
    55  					CreatorID:        22,
    56  					CreatorFileNum:   base.FileNum(223).DiskFileNum(),
    57  					Locator:          "bar",
    58  					CustomObjectName: "obj1",
    59  				},
    60  				{
    61  					FileNum:          base.FileNum(3).DiskFileNum(),
    62  					FileType:         base.FileTypeTable,
    63  					CreatorID:        32,
    64  					CreatorFileNum:   base.FileNum(323).DiskFileNum(),
    65  					CleanupMethod:    objstorage.SharedRefTracking,
    66  					Locator:          "baz",
    67  					CustomObjectName: "obj2",
    68  				},
    69  			},
    70  			DeletedObjects: []base.DiskFileNum{base.FileNum(4).DiskFileNum(), base.FileNum(5).DiskFileNum()},
    71  		},
    72  	} {
    73  		if err := checkRoundTrip(ve); err != nil {
    74  			t.Fatalf("%+v did not roundtrip: %v", ve, err)
    75  		}
    76  	}
    77  }
    78  
    79  func checkRoundTrip(e0 VersionEdit) error {
    80  	var e1 VersionEdit
    81  	buf := new(bytes.Buffer)
    82  	if err := e0.Encode(buf); err != nil {
    83  		return errors.Wrap(err, "encode")
    84  	}
    85  	if err := e1.Decode(buf); err != nil {
    86  		return errors.Wrap(err, "decode")
    87  	}
    88  	if diff := pretty.Diff(e0, e1); diff != nil {
    89  		return errors.Errorf("%s", strings.Join(diff, "\n"))
    90  	}
    91  	return nil
    92  }