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duplicati/Duplicati/UnitTest/DisruptionTests.cs
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1346 lines
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C#

// Copyright (C) 2026, The Duplicati Team
// https://duplicati.com, hello@duplicati.com
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using Duplicati.Library.Interface;
using Duplicati.Library.Logging;
using Duplicati.Library.Main;
using Duplicati.Library.Main.Database;
using Duplicati.Library.Main.Volumes;
using NUnit.Framework;
using IFileEntry = Duplicati.Library.Interface.IFileEntry;
using Utility = Duplicati.Library.Utility.Utility;
using Assert = NUnit.Framework.Legacy.ClassicAssert;
namespace Duplicati.UnitTest
{
public class DisruptionTests : BasicSetupHelper
{
// Files to create in MB.
private readonly int[] fileSizes = { 10, 20, 30 };
private void ModifySourceFiles()
{
foreach (int size in this.fileSizes)
{
byte[] data = new byte[size * 1024 * 1024];
Random rng = new Random();
rng.NextBytes(data);
File.WriteAllBytes(Path.Combine(this.DATAFOLDER, size + "MB"), data);
}
}
private async Task<(IBackupResults Result, List<string> ModifiedFiles)> RunPartialBackupAsync(Controller controller)
{
this.ModifySourceFiles();
var stopped = new TaskCompletionSource<bool>();
var modifiedFiles = new List<string>();
controller.OnOperationStarted = r =>
{
var pv = r as ITaskControlProvider;
if (pv == null)
throw new Exception("Task control provider not found");
#if DEBUG
pv.TaskControl.TestMethodCallback = (path) =>
{
modifiedFiles.Add(path);
if (modifiedFiles.Count == 3)
{
Thread.Sleep(500);
controller.StopAsync().GetAwaiter().GetResult();
stopped.TrySetResult(true);
}
};
#endif
};
// ReSharper disable once AccessToDisposedClosure
Task<IBackupResults> backupTask = controller.BackupAsync(new[] { this.DATAFOLDER });
var t = await Task.WhenAny(backupTask, stopped.Task).ConfigureAwait(false);
if (t != stopped.Task)
throw new Exception("Backup task completed before we could stop it");
return (await backupTask.ConfigureAwait(false), modifiedFiles);
}
[SetUp]
public void SetUp()
{
this.ModifySourceFiles();
}
[Test]
[Category("Disruption")]
public async Task FilesetFilesAsync()
{
#if !DEBUG
Assert.Ignore("This test requires DEBUG to be defined");
#endif
// Choose a dblock size that is small enough so that more than one volume is needed.
Dictionary<string, string> options = new Dictionary<string, string>(this.TestOptions)
{
["dblock-size"] = "10mb",
// This allows us to inspect the dlist files without needing the BackendManager (which is inaccessible here) to decrypt them.
["no-encryption"] = "true",
["disable-file-scanner"] = "true",
["concurrency-fileprocessors"] = "1",
};
// Run a full backup.
using (var c = new Controller("file://" + this.TARGETFOLDER, options, null))
{
var backupResults = await c.BackupAsync(new[] { this.DATAFOLDER });
Assert.AreEqual(0, backupResults.Errors.Count());
Assert.AreEqual(0, backupResults.Warnings.Count());
}
// Inject some spacing to allow for the purged fileset
Thread.Sleep(2000);
// Run a partial backup.
using (var c = new Controller("file://" + this.TARGETFOLDER, options, null))
{
(var backupResults, _) = await this.RunPartialBackupAsync(c).ConfigureAwait(false);
Assert.AreEqual(0, backupResults.Errors.Count());
Assert.AreEqual(1, backupResults.Warnings.Count());
}
async Task<(Dictionary<DateTime, int> map, List<string> filelistFiles)> GetBackupTypesFromRemoteFilesAsync(Controller c)
{
var map = new Dictionary<DateTime, int>();
var filelistFiles = new List<string>();
var remoteFiles = await c.ListRemoteAsync();
foreach (var file in remoteFiles.Files)
{
IParsedVolume volume = VolumeBase.ParseFilename(file);
if (volume != null && volume.FileType == RemoteVolumeType.Files)
{
string dlistFile = Path.Combine(this.TARGETFOLDER, volume.File.Name);
filelistFiles.Add(dlistFile);
VolumeBase.FilesetData filesetData = VolumeReaderBase.GetFilesetData(volume.CompressionModule, dlistFile, new Options(options));
map[volume.Time] = filesetData.IsFullBackup ? BackupType.FULL_BACKUP : BackupType.PARTIAL_BACKUP;
}
}
return (map, filelistFiles);
}
// Purge a file and verify that the fileset file exists in the new dlist files.
List<string> dlistFiles;
Dictionary<DateTime, int> backupTypeMap;
using (var c = new Controller("file://" + this.TARGETFOLDER, options, null))
{
TestUtils.AssertResults(await c.PurgeFilesAsync(new Library.Utility.FilterExpression($"{this.DATAFOLDER}/*{this.fileSizes[0]}*")));
var filesets = (await c.ListAsync()).Filesets.ToList();
Assert.AreEqual(2, filesets.Count);
Assert.AreEqual(BackupType.FULL_BACKUP, filesets.Single(x => x.Version == 1).IsFullBackup);
Assert.AreEqual(BackupType.PARTIAL_BACKUP, filesets.Single(x => x.Version == 0).IsFullBackup);
(backupTypeMap, dlistFiles) = await GetBackupTypesFromRemoteFilesAsync(c);
}
var backupTypes = backupTypeMap.OrderByDescending(x => x.Key).Select(x => x.Value).ToArray();
Assert.AreEqual(2, backupTypes.Length);
Assert.AreEqual(BackupType.FULL_BACKUP, backupTypes[1]);
Assert.AreEqual(BackupType.PARTIAL_BACKUP, backupTypes[0]);
// Remove the dlist files.
foreach (string dlistFile in dlistFiles)
{
File.Delete(dlistFile);
}
// Run a repair and verify that the fileset file exists in the new dlist files.
using (var c = new Controller("file://" + this.TARGETFOLDER, options, null))
{
TestUtils.AssertResults(await c.RepairAsync());
var filesets = (await c.ListAsync()).Filesets.ToList();
Assert.AreEqual(2, filesets.Count);
Assert.AreEqual(BackupType.FULL_BACKUP, filesets.Single(x => x.Version == 1).IsFullBackup);
Assert.AreEqual(BackupType.PARTIAL_BACKUP, filesets.Single(x => x.Version == 0).IsFullBackup);
(backupTypeMap, _) = await GetBackupTypesFromRemoteFilesAsync(c);
}
backupTypes = backupTypeMap.OrderByDescending(x => x.Key).Select(x => x.Value).ToArray();
Assert.AreEqual(2, backupTypes.Length);
Assert.AreEqual(BackupType.FULL_BACKUP, backupTypes[1]);
Assert.AreEqual(BackupType.PARTIAL_BACKUP, backupTypes[0]);
}
[Test]
[Category("Disruption")]
public async Task KeepTimeRetentionAsync()
{
#if !DEBUG
Assert.Ignore("This test requires DEBUG to be defined");
#endif
// Choose a dblock size that is small enough so that more than one volume is needed.
var options = new Dictionary<string, string>(this.TestOptions)
{
["dblock-size"] = "10mb",
["disable-file-scanner"] = "true",
["concurrency-fileprocessors"] = "1",
};
// First, run two complete backups followed by a partial backup. We will then set the keep-time
// option so that the threshold lies between the first and second backups.
DateTime firstBackupTime;
using (var c = new Controller("file://" + this.TARGETFOLDER, options, null))
{
TestUtils.AssertResults(await c.BackupAsync(new[] { this.DATAFOLDER }));
firstBackupTime = (await c.ListAsync()).Filesets.First().Time;
}
// Wait before the second backup so that we can more easily define the keep-time threshold
// to lie between the first and second backups.
Thread.Sleep(5000);
DateTime secondBackupTime;
using (var c = new Controller("file://" + this.TARGETFOLDER, options, null))
{
this.ModifySourceFiles();
TestUtils.AssertResults(await c.BackupAsync(new[] { this.DATAFOLDER }));
secondBackupTime = (await c.ListAsync()).Filesets.First().Time;
}
// Run a partial backup.
DateTime thirdBackupTime;
using (var c = new Controller("file://" + this.TARGETFOLDER, options, null))
{
(var backupResults, _) = await this.RunPartialBackupAsync(c).ConfigureAwait(false);
Assert.AreEqual(0, backupResults.Errors.Count());
Assert.AreEqual(1, backupResults.Warnings.Count());
thirdBackupTime = (await c.ListAsync()).Filesets.First().Time;
}
// Set the keep-time option so that the threshold lies between the first and second backups
// and run the delete operation.
options["keep-time"] = $"{(int)((DateTime.Now - firstBackupTime).TotalSeconds - (secondBackupTime - firstBackupTime).TotalSeconds / 2)}s";
using (var c = new Controller("file://" + this.TARGETFOLDER, options, null))
{
TestUtils.AssertResults(await c.DeleteAsync());
var filesets = (await c.ListAsync()).Filesets.ToList();
Assert.AreEqual(2, filesets.Count);
Assert.AreEqual(secondBackupTime, filesets[1].Time);
Assert.AreEqual(BackupType.FULL_BACKUP, filesets[1].IsFullBackup);
Assert.AreEqual(thirdBackupTime, filesets[0].Time);
Assert.AreEqual(BackupType.PARTIAL_BACKUP, filesets[0].IsFullBackup);
}
// Run another partial backup. We will then verify that a full backup is retained
// even when all the "recent" backups are partial.
DateTime fourthBackupTime;
using (var c = new Controller("file://" + this.TARGETFOLDER, options, null))
{
(var backupResults, _) = await this.RunPartialBackupAsync(c).ConfigureAwait(false);
Assert.AreEqual(0, backupResults.Errors.Count());
Assert.AreEqual(1, backupResults.Warnings.Count());
fourthBackupTime = (await c.ListAsync()).Filesets.First().Time;
}
// Set the keep-time option so that the threshold lies after the most recent full backup
// and run the delete operation.
options["keep-time"] = "1s";
using (var c = new Controller("file://" + this.TARGETFOLDER, options, null))
{
TestUtils.AssertResults(await c.DeleteAsync());
var filesets = (await c.ListAsync()).Filesets.ToList();
Assert.AreEqual(3, filesets.Count);
Assert.AreEqual(secondBackupTime, filesets[2].Time);
Assert.AreEqual(BackupType.FULL_BACKUP, filesets[2].IsFullBackup);
Assert.AreEqual(thirdBackupTime, filesets[1].Time);
Assert.AreEqual(BackupType.PARTIAL_BACKUP, filesets[1].IsFullBackup);
Assert.AreEqual(fourthBackupTime, filesets[0].Time);
Assert.AreEqual(BackupType.PARTIAL_BACKUP, filesets[0].IsFullBackup);
}
}
[Test]
[Category("Disruption")]
public async Task KeepVersionsRetentionAsync()
{
#if !DEBUG
Assert.Ignore("This test requires DEBUG to be defined");
#endif
// Choose a dblock size that is small enough so that more than one volume is needed.
var options = new Dictionary<string, string>(this.TestOptions)
{
["dblock-size"] = "10mb",
["disable-file-scanner"] = "true",
["concurrency-fileprocessors"] = "1",
};
// Run a full backup.
DateTime firstBackupTime;
using (var c = new Controller("file://" + this.TARGETFOLDER, options, null))
{
TestUtils.AssertResults(await c.BackupAsync(new[] { this.DATAFOLDER }));
firstBackupTime = (await c.ListAsync()).Filesets.First().Time;
}
// Run a partial backup.
using (var c = new Controller("file://" + this.TARGETFOLDER, options, null))
{
(var backupResults, _) = await this.RunPartialBackupAsync(c).ConfigureAwait(false);
Assert.AreEqual(0, backupResults.Errors.Count());
Assert.AreEqual(1, backupResults.Warnings.Count());
}
// Run a partial backup.
using (var c = new Controller("file://" + this.TARGETFOLDER, options, null))
{
(var backupResults, _) = await this.RunPartialBackupAsync(c).ConfigureAwait(false);
Assert.AreEqual(0, backupResults.Errors.Count());
Assert.AreEqual(1, backupResults.Warnings.Count());
}
// Run a full backup.
DateTime fourthBackupTime;
using (var c = new Controller("file://" + this.TARGETFOLDER, options, null))
{
this.ModifySourceFiles();
TestUtils.AssertResults(await c.BackupAsync(new[] { this.DATAFOLDER }));
fourthBackupTime = (await c.ListAsync()).Filesets.First().Time;
}
// Run a partial backup.
options["keep-versions"] = "2";
using (var c = new Controller("file://" + this.TARGETFOLDER, options, null))
{
(var backupResults, _) = await this.RunPartialBackupAsync(c).ConfigureAwait(false);
Assert.AreEqual(0, backupResults.Errors.Count());
Assert.AreEqual(1, backupResults.Warnings.Count());
DateTime fifthBackupTime = (await c.ListAsync()).Filesets.First().Time;
// Since we stopped the operation, files were not deleted automatically
await c.DeleteAsync();
// Partial backups that are followed by a full backup can be deleted.
var filesets = (await c.ListAsync()).Filesets.ToList();
Assert.AreEqual(3, filesets.Count);
Assert.AreEqual(firstBackupTime, filesets[2].Time);
Assert.AreEqual(BackupType.FULL_BACKUP, filesets[2].IsFullBackup);
Assert.AreEqual(fourthBackupTime, filesets[1].Time);
Assert.AreEqual(BackupType.FULL_BACKUP, filesets[1].IsFullBackup);
Assert.AreEqual(fifthBackupTime, filesets[0].Time);
Assert.AreEqual(BackupType.PARTIAL_BACKUP, filesets[0].IsFullBackup);
}
// Run a full backup.
using (var c = new Controller("file://" + this.TARGETFOLDER, options, null))
{
this.ModifySourceFiles();
TestUtils.AssertResults(await c.BackupAsync(new[] { this.DATAFOLDER }));
var sixthBackupTime = (await c.ListAsync()).Filesets.First().Time;
// Since the last backup was full, we can now expect to have just the 2 most recent full backups.
var filesets = (await c.ListAsync()).Filesets.ToList();
Assert.AreEqual(2, filesets.Count);
Assert.AreEqual(fourthBackupTime, filesets[1].Time);
Assert.AreEqual(BackupType.FULL_BACKUP, filesets[1].IsFullBackup);
Assert.AreEqual(sixthBackupTime, filesets[0].Time);
Assert.AreEqual(BackupType.FULL_BACKUP, filesets[0].IsFullBackup);
}
}
[Test]
[Category("Disruption")]
public async Task ListWithoutLocalDbAsync()
{
#if !DEBUG
Assert.Ignore("This test requires DEBUG to be defined");
#endif
// Choose a dblock size that is small enough so that more than one volume is needed.
Dictionary<string, string> options = new Dictionary<string, string>(this.TestOptions)
{
["dblock-size"] = "10mb",
["no-local-db"] = "true",
["disable-file-scanner"] = "true",
["concurrency-fileprocessors"] = "1",
};
// Run a full backup.
using (var c = new Controller("file://" + this.TARGETFOLDER, options, null))
TestUtils.AssertResults(await c.BackupAsync(new[] { this.DATAFOLDER }));
// Run a partial backup.
using (var c = new Controller("file://" + this.TARGETFOLDER, options, null))
{
(var backupResults, _) = await this.RunPartialBackupAsync(c).ConfigureAwait(false);
Assert.AreEqual(0, backupResults.Errors.Count());
Assert.AreEqual(1, backupResults.Warnings.Count());
var filesets = (await c.ListAsync()).Filesets.ToList();
Assert.AreEqual(2, filesets.Count);
Assert.AreEqual(BackupType.FULL_BACKUP, filesets[1].IsFullBackup);
Assert.AreEqual(BackupType.PARTIAL_BACKUP, filesets[0].IsFullBackup);
}
}
[Test]
[Category("Disruption")]
public async Task RetentionPolicyRetentionAsync()
{
#if !DEBUG
Assert.Ignore("This test requires DEBUG to be defined");
#endif
Dictionary<string, string> options = new Dictionary<string, string>(this.TestOptions)
{
// Choose a dblock size that is small enough so that more than one volume is needed.
["dblock-size"] = "10mb",
// This test assumes that we can perform 3 backups within 1 minute.
["retention-policy"] = "1m:59s,U:1m",
["no-backend-verification"] = "true",
["disable-file-scanner"] = "true",
["concurrency-fileprocessors"] = "1"
};
DateTime firstBackupTime;
using (var c = new Controller("file://" + this.TARGETFOLDER, options, null))
{
TestUtils.AssertResults(await c.BackupAsync(new[] { this.DATAFOLDER }));
firstBackupTime = (await c.ListAsync()).Filesets.First().Time;
var filesets = (await c.ListAsync()).Filesets.ToList();
Assert.AreEqual(1, filesets.Count);
this.ModifySourceFiles();
TestUtils.AssertResults(await c.BackupAsync(new[] { this.DATAFOLDER }));
DateTime secondBackupTime = (await c.ListAsync()).Filesets.First().Time;
// Since the most recent backup is not considered in the retention logic, the only backup in the first time frame
// is the initial one. As a result, we should have 2 backups.
filesets = (await c.ListAsync()).Filesets.ToList();
Assert.AreEqual(2, filesets.Count);
Assert.AreEqual(firstBackupTime, filesets[1].Time);
Assert.AreEqual(BackupType.FULL_BACKUP, filesets[1].IsFullBackup);
Assert.AreEqual(secondBackupTime, filesets[0].Time);
Assert.AreEqual(BackupType.FULL_BACKUP, filesets[0].IsFullBackup);
}
// Wait so that the next backups fall in the next retention interval.
Thread.Sleep(new TimeSpan(0, 0, 1, 0));
DateTime thirdBackupTime;
using (var c = new Controller("file://" + this.TARGETFOLDER, options, null))
{
(var backupResults, _) = await this.RunPartialBackupAsync(c).ConfigureAwait(false);
Assert.AreEqual(0, backupResults.Errors.Count());
Assert.AreEqual(1, backupResults.Warnings.Count());
thirdBackupTime = (await c.ListAsync()).Filesets.First().Time;
// Since we stopped the backup, files were not deleted automatically
await c.DeleteAsync();
// Since the most recent backup is not considered in the retention logic, there are no backups in the first time
// frame. The original 2 backups have now spilled over to the U:1m specification. Since we keep the first
// backup in the interval, we should be left with the first backup, as well as the third partial one.
var filesets = (await c.ListAsync()).Filesets.ToList();
Assert.AreEqual(2, filesets.Count);
Assert.AreEqual(firstBackupTime, filesets[1].Time);
Assert.AreEqual(BackupType.FULL_BACKUP, filesets[1].IsFullBackup);
Assert.AreEqual(thirdBackupTime, filesets[0].Time);
Assert.AreEqual(BackupType.PARTIAL_BACKUP, filesets[0].IsFullBackup);
}
DateTime fourthBackupTime;
using (var c = new Controller("file://" + this.TARGETFOLDER, options, null))
{
this.ModifySourceFiles();
TestUtils.AssertResults(await c.BackupAsync(new[] { this.DATAFOLDER }));
fourthBackupTime = (await c.ListAsync()).Filesets.First().Time;
// Since the most recent backup is not considered in the retention logic, the third backup is the only backup
// in the first time frame. There is no further spillover, so we simply add the fourth backup to the
// collection of retained backups.
var filesets = (await c.ListAsync()).Filesets.ToList();
Assert.AreEqual(3, filesets.Count);
Assert.AreEqual(firstBackupTime, filesets[2].Time);
Assert.AreEqual(BackupType.FULL_BACKUP, filesets[2].IsFullBackup);
Assert.AreEqual(thirdBackupTime, filesets[1].Time);
Assert.AreEqual(BackupType.PARTIAL_BACKUP, filesets[1].IsFullBackup);
Assert.AreEqual(fourthBackupTime, filesets[0].Time);
Assert.AreEqual(BackupType.FULL_BACKUP, filesets[0].IsFullBackup);
this.ModifySourceFiles();
TestUtils.AssertResults(await c.BackupAsync(new[] { this.DATAFOLDER }));
DateTime fifthBackupTime = (await c.ListAsync()).Filesets.First().Time;
// Since the most recent backup is not considered in the retention logic, we now have two backups in the
// first time frame: the third (partial) and fourth (full). Since the first backup in each interval is
// kept, we would typically keep just the third backup. However, since we should not discard a full
// backup in favor of a partial one, we keep the fourth as well. We also still have the initial backup.
filesets = (await c.ListAsync()).Filesets.ToList();
Assert.AreEqual(4, filesets.Count);
Assert.AreEqual(firstBackupTime, filesets[3].Time);
Assert.AreEqual(BackupType.FULL_BACKUP, filesets[3].IsFullBackup);
Assert.AreEqual(thirdBackupTime, filesets[2].Time);
Assert.AreEqual(BackupType.PARTIAL_BACKUP, filesets[2].IsFullBackup);
Assert.AreEqual(fourthBackupTime, filesets[1].Time);
Assert.AreEqual(BackupType.FULL_BACKUP, filesets[1].IsFullBackup);
Assert.AreEqual(fifthBackupTime, filesets[0].Time);
Assert.AreEqual(BackupType.FULL_BACKUP, filesets[0].IsFullBackup);
}
// Wait so that the next backups fall in the next retention interval.
Thread.Sleep(new TimeSpan(0, 0, 1, 0));
using (var c = new Controller("file://" + this.TARGETFOLDER, options, null))
{
this.ModifySourceFiles();
var backupResults = await c.BackupAsync(new[] { this.DATAFOLDER });
Assert.AreEqual(0, backupResults.Errors.Count());
Assert.AreEqual(0, backupResults.Warnings.Count());
var sixthBackupTime = (await c.ListAsync()).Filesets.First().Time;
// Since the most recent backup is not considered in the retention logic, we now have three backups in the
// second time frame: the third (partial), fourth (full), and fifth (full). Since we keep up to the first
// full backup in each time frame, we now drop the fifth backup.
var filesets = (await c.ListAsync()).Filesets.ToList();
Assert.AreEqual(4, filesets.Count);
Assert.AreEqual(firstBackupTime, filesets[3].Time);
Assert.AreEqual(BackupType.FULL_BACKUP, filesets[3].IsFullBackup);
Assert.AreEqual(thirdBackupTime, filesets[2].Time);
Assert.AreEqual(BackupType.PARTIAL_BACKUP, filesets[2].IsFullBackup);
Assert.AreEqual(fourthBackupTime, filesets[1].Time);
Assert.AreEqual(BackupType.FULL_BACKUP, filesets[1].IsFullBackup);
Assert.AreEqual(sixthBackupTime, filesets[0].Time);
Assert.AreEqual(BackupType.FULL_BACKUP, filesets[0].IsFullBackup);
}
}
[Test]
[Category("Disruption")]
public async Task StopAfterCurrentFileAsync()
{
#if !DEBUG
Assert.Ignore("This test requires DEBUG to be defined");
#endif
Dictionary<string, string> options = new Dictionary<string, string>(this.TestOptions)
{
// Choose a dblock size that is small enough so that more than one volume is needed.
["dblock-size"] = "10mb",
["disable-file-scanner"] = "true",
["concurrency-fileprocessors"] = "1"
};
// Run a complete backup.
using (var c = new Controller("file://" + this.TARGETFOLDER, options, null))
{
TestUtils.AssertResults(await c.BackupAsync(new[] { this.DATAFOLDER }));
Assert.AreEqual(1, (await c.ListAsync()).Filesets.Count());
Assert.AreEqual(BackupType.FULL_BACKUP, (await c.ListAsync()).Filesets.Single(x => x.Version == 0).IsFullBackup);
}
// Run a partial backup.
using (var c = new Controller("file://" + this.TARGETFOLDER, options, null))
{
(var backupResults, var modified) = await this.RunPartialBackupAsync(c).ConfigureAwait(false);
Assert.AreEqual(0, backupResults.Errors.Count());
Assert.AreEqual(1, backupResults.Warnings.Count());
if (backupResults.ModifiedFiles == 0)
throw new Exception($"No files were modified, likely the stop was issued too early, list is: {string.Join(", ", modified)}");
Assert.That(backupResults.ModifiedFiles, Is.GreaterThan(0), "No files were added, likely the stop was issued too early");
Assert.That(backupResults.ModifiedFiles, Is.LessThan(fileSizes.Length), "All files were added, likely the stop was issued too late");
// If we interrupt the backup, the most recent Fileset should be marked as partial.
Assert.AreEqual(2, (await c.ListAsync()).Filesets.Count());
Assert.AreEqual(BackupType.FULL_BACKUP, (await c.ListAsync()).Filesets.Single(x => x.Version == 1).IsFullBackup);
Assert.AreEqual(BackupType.PARTIAL_BACKUP, (await c.ListAsync()).Filesets.Single(x => x.Version == 0).IsFullBackup);
}
// Restore files from the partial backup set.
Dictionary<string, string> restoreOptions = new Dictionary<string, string>(options) { ["restore-path"] = this.RESTOREFOLDER };
using (var c = new Controller("file://" + this.TARGETFOLDER, restoreOptions, null))
{
var lastResults = await c.ListAsync("*");
var partialVersionFiles = lastResults.Files.Select(x => x.Path).Where(x => !Utility.IsFolder(x, File.GetAttributes)).ToArray();
Assert.GreaterOrEqual(partialVersionFiles.Length, 1);
await c.RestoreAsync(partialVersionFiles);
foreach (string filepath in partialVersionFiles)
{
var filename = Path.GetFileName(filepath);
TestUtils.AssertFilesAreEqual(filepath, Path.Combine(this.RESTOREFOLDER, filename ?? String.Empty), false, filename);
}
}
// Recreating the database should preserve the backup types.
File.Delete(this.DBFILE);
using (var c = new Controller("file://" + this.TARGETFOLDER, options, null))
{
TestUtils.AssertResults(await c.RepairAsync());
Assert.AreEqual(2, (await c.ListAsync()).Filesets.Count());
Assert.AreEqual(BackupType.FULL_BACKUP, (await c.ListAsync()).Filesets.Single(x => x.Version == 1).IsFullBackup);
Assert.AreEqual(BackupType.PARTIAL_BACKUP, (await c.ListAsync()).Filesets.Single(x => x.Version == 0).IsFullBackup);
}
// Run a complete backup. Listing the Filesets should include both full and partial backups.
using (var c = new Controller("file://" + this.TARGETFOLDER, options, null))
{
TestUtils.AssertResults(await c.BackupAsync(new[] { this.DATAFOLDER }));
Assert.AreEqual(3, (await c.ListAsync()).Filesets.Count());
Assert.AreEqual(BackupType.FULL_BACKUP, (await c.ListAsync()).Filesets.Single(x => x.Version == 2).IsFullBackup);
Assert.AreEqual(BackupType.PARTIAL_BACKUP, (await c.ListAsync()).Filesets.Single(x => x.Version == 1).IsFullBackup);
Assert.AreEqual(BackupType.FULL_BACKUP, (await c.ListAsync()).Filesets.Single(x => x.Version == 0).IsFullBackup);
}
// Restore files from the full backup set.
restoreOptions["overwrite"] = "true";
using (var c = new Controller("file://" + this.TARGETFOLDER, restoreOptions, null))
{
var lastResults = await c.ListAsync("*");
var fullVersionFiles = lastResults.Files.Select(x => x.Path).Where(x => !Utility.IsFolder(x, File.GetAttributes)).ToArray();
Assert.AreEqual(this.fileSizes.Length, fullVersionFiles.Length);
TestUtils.AssertResults(await c.RestoreAsync(fullVersionFiles));
foreach (string filepath in fullVersionFiles)
{
string filename = Path.GetFileName(filepath);
TestUtils.AssertFilesAreEqual(filepath, Path.Combine(this.RESTOREFOLDER, filename ?? String.Empty), false, filename);
}
}
}
[Test]
[Category("Disruption")]
public async Task StopNowAsync()
{
#if !DEBUG
Assert.Ignore("This test requires DEBUG to be defined");
#endif
// Choose a dblock size that is small enough so that more than one volume is needed.
Dictionary<string, string> options = new Dictionary<string, string>(this.TestOptions)
{
["dblock-size"] = "10mb",
["disable-synthetic-filelist"] = "true",
["disable-file-scanner"] = "true",
["concurrency-fileprocessors"] = "1",
};
// Run a complete backup.
using (var c = new Controller("file://" + this.TARGETFOLDER, options, null))
{
TestUtils.AssertResults(await c.BackupAsync(new[] { this.DATAFOLDER }));
var filesets = (await c.ListAsync()).Filesets.ToList();
Assert.AreEqual(1, filesets.Count);
Assert.AreEqual(BackupType.FULL_BACKUP, filesets[0].IsFullBackup);
}
// Interrupt a backup with "abort".
this.ModifySourceFiles();
using (var c = new Controller("file://" + this.TARGETFOLDER, options, null))
{
var startedTcs = new TaskCompletionSource<bool>();
c.OnOperationStarted += results =>
{
((BackupResults)results).OperationProgressUpdater.PhaseChanged += (phase, previousPhase) =>
{
if (phase == OperationPhase.Backup_ProcessingFiles)
startedTcs.SetResult(true);
};
};
Task backupTask = c.BackupAsync([DATAFOLDER]);
Task completedTask = await Task.WhenAny(startedTcs.Task, Task.Delay(5000));
if (completedTask == startedTcs.Task)
{
await c.AbortAsync();
try
{
await backupTask.ConfigureAwait(false);
Assert.Fail("Expected OperationCanceledException but none was thrown.");
}
catch (OperationCanceledException)
{
// Success, exception thrown as expected
}
}
else
{
Assert.Fail("Operation did not reach ready state within timeout.");
}
}
// The next backup should proceed without issues.
using (var c = new Controller("file://" + this.TARGETFOLDER, options, null))
{
TestUtils.AssertResults(await c.BackupAsync(new[] { this.DATAFOLDER }));
var filesets = (await c.ListAsync()).Filesets.ToList();
Assert.AreEqual(2, filesets.Count);
Assert.AreEqual(BackupType.FULL_BACKUP, filesets[1].IsFullBackup);
Assert.AreEqual(BackupType.FULL_BACKUP, filesets[0].IsFullBackup);
}
// Restore from the backup that followed the interruption.
Dictionary<string, string> restoreOptions = new Dictionary<string, string>(options) { ["restore-path"] = this.RESTOREFOLDER };
using (var c = new Controller("file://" + this.TARGETFOLDER, restoreOptions, null))
{
var lastResults = await c.ListAsync("*");
var fullVersionFiles = lastResults.Files.Select(x => x.Path).Where(x => !Utility.IsFolder(x, File.GetAttributes)).ToArray();
Assert.AreEqual(this.fileSizes.Length, fullVersionFiles.Length);
TestUtils.AssertResults(await c.RestoreAsync(fullVersionFiles));
foreach (string filepath in fullVersionFiles)
{
string filename = Path.GetFileName(filepath);
TestUtils.AssertFilesAreEqual(filepath, Path.Combine(this.RESTOREFOLDER, filename ?? String.Empty), false, filename);
}
}
}
[Test]
[Category("Disruption")]
public async Task TestUploadExceptionWithNoRetriesAsync()
{
var testopts = TestOptions;
testopts["number-of-retries"] = "0";
testopts["dblock-size"] = "10mb";
// Make a base backup
using (var c = new Controller("file://" + TARGETFOLDER, testopts, null))
TestUtils.AssertResults(await c.BackupAsync(new string[] { DATAFOLDER }));
// Ensure that the target folder only has a single dlist file
Assert.AreEqual(1, Directory.EnumerateFiles(TARGETFOLDER, "*.dlist.*").Count(), "There should be only one dlist file in the target folder");
// Make a new backup that fails uploading a dblock file
ModifySourceFiles();
// Deterministic error backend
Library.DynamicLoader.BackendLoader.AddBackend(new DeterministicErrorBackend());
var failtarget = new DeterministicErrorBackend().ProtocolKey + "://" + TARGETFOLDER;
var hasFailed = false;
var secondUploadStarted = false;
var secondUploadCompleted = false;
// Fail the compact after the first dblock put is completed
var uploads = new List<string>();
DeterministicErrorBackend.ErrorGenerator = (DeterministicErrorBackend.BackendAction action, string remotename) =>
{
if (action.IsGetOperation)
{
return true;
}
if (!hasFailed && action == DeterministicErrorBackend.BackendAction.PutBefore)
{
// We only fail one upload, but there are no retries
hasFailed = true;
// Make sure we can start a second upload
Thread.Sleep(1000);
return true;
}
if (action == DeterministicErrorBackend.BackendAction.PutBefore)
secondUploadStarted = true;
if (action == DeterministicErrorBackend.BackendAction.PutAfter)
secondUploadCompleted = true;
return false;
};
using (var c = new Controller(failtarget, testopts, null))
Assert.ThrowsAsync<DeterministicErrorBackend.DeterministicErrorBackendException>(() => c.BackupAsync(new string[] { DATAFOLDER }));
Assert.That(secondUploadStarted, Is.True, "Second upload was not started");
Assert.That(secondUploadCompleted, Is.True, "Second upload was not started");
Assert.That(hasFailed, Is.True, "Failed to fail the upload");
Assert.That(!uploads.Any(x => x.Contains("dlist")), Is.True, "Upload of dlist file was not skipped");
// Ensure that the target folder only has a single dlist file
Assert.AreEqual(1, Directory.EnumerateFiles(TARGETFOLDER, "*.dlist.*").Count(), $"There should be only one dlist file in the target folder: {string.Join(", ", uploads)}");
// Create a regular backup
using (var c = new Controller("file://" + TARGETFOLDER, testopts, null))
TestUtils.AssertResults(await c.BackupAsync(new string[] { DATAFOLDER }));
// Verify that all is in order
using (var c = new Controller("file://" + TARGETFOLDER, testopts.Expand(new { full_remote_verification = true }), null))
try
{
TestUtils.AssertResults(await c.TestAsync(long.MaxValue));
}
catch (TestUtils.TestVerificationException e)
{
using var db = await LocalDatabase.CreateLocalDatabaseAsync(testopts["dbpath"], "test", true, null, CancellationToken.None).ConfigureAwait(false);
using var cmd = db.Connection.CreateCommand();
var sb = new StringBuilder();
sb.AppendLine(e.Message);
sb.AppendLine(TestUtils.DumpTable(cmd, "Remotevolume", null));
sb.AppendLine(TestUtils.DumpTable(cmd, "File", null));
sb.AppendLine(TestUtils.DumpTable(cmd, "FilesetEntry", null));
sb.AppendLine(TestUtils.DumpTable(cmd, "Fileset", null));
sb.AppendLine("Files in the source folder:");
foreach (var fe in Directory.EnumerateFileSystemEntries(this.DATAFOLDER))
sb.AppendLine($"File: {fe}");
Assert.Fail(sb.ToString());
}
// Test that we can recreate
var recreatedDatabaseFile = Path.Combine(BASEFOLDER, "recreated-database.sqlite");
if (File.Exists(recreatedDatabaseFile))
File.Delete(recreatedDatabaseFile);
testopts["dbpath"] = recreatedDatabaseFile;
using (var c = new Controller("file://" + TARGETFOLDER, testopts, null))
TestUtils.AssertResults(await c.RepairAsync());
// Check that we have 3 versions
using (var c = new Controller("file://" + TARGETFOLDER, testopts, null))
{
var listResults = await c.ListAsync();
TestUtils.AssertResults(listResults);
Assert.AreEqual(3, listResults.Filesets.Count());
}
}
[Test]
[Category("Disruption")]
[TestCase(true, false)]
[TestCase(false, false)]
[TestCase(true, true)]
[TestCase(false, true)]
public async Task TestUploadExceptionOnFirstDlistWithRepairAsync(bool before, bool failOnLastDblock)
{
var testopts = TestOptions;
testopts["number-of-retries"] = "0";
testopts["dblock-size"] = "10mb";
// Deterministic error backend
Library.DynamicLoader.BackendLoader.AddBackend(new DeterministicErrorBackend());
var failtarget = new DeterministicErrorBackend().ProtocolKey + "://" + TARGETFOLDER;
var operation = before
? DeterministicErrorBackend.BackendAction.PutBefore
: DeterministicErrorBackend.BackendAction.PutAfter;
// We expect to upload 7 volumes, and fail on the last one
var count = 7;
var failed = false;
// Fail when uploading the dlist file
DeterministicErrorBackend.ErrorGenerator = (DeterministicErrorBackend.BackendAction action, string remotename) =>
{
if (failOnLastDblock)
{
if (action == operation && remotename.Contains(".dblock."))
{
if (Interlocked.Decrement(ref count) == 0)
{
// Allow others to progress
Thread.Sleep(2000);
failed = true;
return true;
}
}
}
else
{
if (action == operation && remotename.Contains(".dlist."))
{
failed = true;
return true;
}
}
return false;
};
using (var c = new Controller(failtarget, testopts, null))
Assert.ThrowsAsync<DeterministicErrorBackend.DeterministicErrorBackendException>(() => c.BackupAsync(new string[] { DATAFOLDER }));
Assert.That(failed, Is.True, "Failed to fail the upload");
// Make spacing for the next backup
Thread.Sleep(3000);
// Issue repair
using (var c = new Controller("file://" + TARGETFOLDER, testopts, null))
TestUtils.AssertResults(await c.RepairAsync());
// Verify that all is in order
using (var c = new Controller("file://" + TARGETFOLDER, testopts.Expand(new { full_remote_verification = true }), null))
TestUtils.AssertResults(await c.TestAsync(long.MaxValue));
// If we fail on the dlist after the upload, it is promoted to a regular backup
var expectedFilesets = before || failOnLastDblock ? 2 : 1;
// Make a new backup, should continue as normal
using (var c = new Controller("file://" + TARGETFOLDER, testopts, null))
{
var backupResults = await c.BackupAsync(new string[] { DATAFOLDER });
TestUtils.AssertResults(backupResults);
Assert.AreEqual(expectedFilesets, (await c.ListAsync()).Filesets.Count());
}
// Test that we can recreate
var recreatedDatabaseFile = Path.Combine(BASEFOLDER, "recreated-database.sqlite");
if (File.Exists(recreatedDatabaseFile))
File.Delete(recreatedDatabaseFile);
testopts["dbpath"] = recreatedDatabaseFile;
using (var c = new Controller("file://" + TARGETFOLDER, testopts, null))
TestUtils.AssertResults(await c.RepairAsync());
// Check that we have the correct versions
using (var c = new Controller("file://" + TARGETFOLDER, testopts, null))
{
var listResults = await c.ListAsync();
TestUtils.AssertResults(listResults);
Assert.AreEqual(expectedFilesets, listResults.Filesets.Count());
}
}
[Test]
[Category("Disruption")]
[TestCase(true, false)]
[TestCase(false, false)]
[TestCase(true, true)]
[TestCase(false, true)]
public async Task TestUploadExceptionOnFirstDlistAsync(bool before, bool failOnLastDblock)
{
var testopts = TestOptions;
testopts["number-of-retries"] = "0";
testopts["dblock-size"] = "10mb";
// Deterministic error backend
Library.DynamicLoader.BackendLoader.AddBackend(new DeterministicErrorBackend());
var failtarget = new DeterministicErrorBackend().ProtocolKey + "://" + TARGETFOLDER;
var operation = before
? DeterministicErrorBackend.BackendAction.PutBefore
: DeterministicErrorBackend.BackendAction.PutAfter;
// We expect to upload 7 volumes, and fail on the last one
var count = 7;
var failed = false;
// Fail when uploading the dlist file
DeterministicErrorBackend.ErrorGenerator = (DeterministicErrorBackend.BackendAction action, string remotename) =>
{
if (failOnLastDblock)
{
if (action == operation && remotename.Contains(".dblock."))
{
if (Interlocked.Decrement(ref count) == 0)
{
// Allow others to progress
Thread.Sleep(2000);
failed = true;
return true;
}
}
}
else
{
if (action == operation && remotename.Contains(".dlist."))
{
failed = true;
return true;
}
}
return false;
};
using (var c = new Controller(failtarget, testopts, null))
Assert.ThrowsAsync<DeterministicErrorBackend.DeterministicErrorBackendException>(() => c.BackupAsync(new string[] { DATAFOLDER }));
Assert.That(failed, Is.True, "Failed to fail the upload");
// Make spacing for the next backup
Thread.Sleep(3000);
// If we fail on the dlist after the upload, it is promoted to a regular backup
var expectedFilesets = before || failOnLastDblock ? 2 : 1;
// Make a new backup, should continue as normal
using (var c = new Controller("file://" + TARGETFOLDER, testopts, null))
{
var backupResults = await c.BackupAsync(new string[] { DATAFOLDER });
TestUtils.AssertResults(backupResults);
Assert.AreEqual(expectedFilesets, (await c.ListAsync()).Filesets.Count());
}
// Verify that all is in order
using (var c = new Controller("file://" + TARGETFOLDER, testopts.Expand(new { full_remote_verification = true }), null))
TestUtils.AssertResults(await c.TestAsync(long.MaxValue));
// Test that we can recreate
var recreatedDatabaseFile = Path.Combine(BASEFOLDER, "recreated-database.sqlite");
if (File.Exists(recreatedDatabaseFile))
File.Delete(recreatedDatabaseFile);
testopts["dbpath"] = recreatedDatabaseFile;
using (var c = new Controller("file://" + TARGETFOLDER, testopts, null))
TestUtils.AssertResults(await c.RepairAsync());
// Check that we have 2 versions
using (var c = new Controller("file://" + TARGETFOLDER, testopts, null))
{
var listResults = await c.ListAsync();
TestUtils.AssertResults(listResults);
Assert.AreEqual(expectedFilesets, listResults.Filesets.Count());
}
}
[Test]
[Category("Disruption")]
[TestCase(true)]
[TestCase(false)]
public async Task TestRepairWithNoDlistAsync(bool before)
{
var testopts = TestOptions;
testopts["number-of-retries"] = "0";
testopts["dblock-size"] = "10mb";
// Deterministic error backend
Library.DynamicLoader.BackendLoader.AddBackend(new DeterministicErrorBackend());
var failtarget = new DeterministicErrorBackend().ProtocolKey + "://" + TARGETFOLDER;
var operation = before
? DeterministicErrorBackend.BackendAction.PutBefore
: DeterministicErrorBackend.BackendAction.PutAfter;
// Fail when uploading the first dlist file
DeterministicErrorBackend.ErrorGenerator = (DeterministicErrorBackend.BackendAction action, string remotename) =>
{
if (action == operation && remotename.Contains(".dlist."))
return true;
return false;
};
using (var c = new Controller(failtarget, testopts, null))
Assert.ThrowsAsync<DeterministicErrorBackend.DeterministicErrorBackendException>(() => c.BackupAsync(new string[] { DATAFOLDER }));
// Test that we can repair
using (var c = new Controller("file://" + TARGETFOLDER, testopts, null))
TestUtils.AssertResults(await c.RepairAsync());
// Check that we have 1 version
using (var c = new Controller("file://" + TARGETFOLDER, testopts, null))
{
var listResults = await c.ListAsync();
TestUtils.AssertResults(listResults);
Assert.AreEqual(1, listResults.Filesets.Count());
}
}
[Test]
[Category("Disruption")]
[TestCase(true, true, 3, false)]
[TestCase(false, false, 3, false)]
[TestCase(true, false, 3, false)]
[TestCase(false, true, 3, false)]
[TestCase(true, true, 3, true)]
[TestCase(false, true, 3, true)]
[TestCase(false, false, 3, true)]
[TestCase(true, false, 3, true)]
public async Task TestMultiExceptionOnDlistAsync(bool before, bool modifyInBetween, int runs, bool withBase)
{
var testopts = TestOptions;
testopts["number-of-retries"] = "0";
testopts["dblock-size"] = "10mb";
// We always have at least 1 backup at the end
var expectedFilesets = 1;
// If the files are modified, this will create multiple versions
if (modifyInBetween)
{
// If we prevent the file from being uploaded,
// it will be a temporary file, and a new synthetic file
// will be attempted, but that fails as well
// If it is after, then the upload completes,
// and it will be promoted to a regular uploaded backup
expectedFilesets += before ? 1 : runs;
// If we modify with a base, then that creates a version as well
if (withBase)
expectedFilesets += 1;
}
else if (before && !withBase)
{
// Because an incomplete fileset is treated as a partial fileset,
// the final non-interrupted backup will see the syntheticly
// created fileset as a partial fileset, and create a new non-partial
// fileset, even though there are no changes between the two
// This does not happen with a base, because it simply does not
// attempt to upload the failing filesets
expectedFilesets += 1;
}
if (withBase)
{
// Make a regular backup
using (var c = new Controller("file://" + TARGETFOLDER, testopts, null))
TestUtils.AssertResults(await c.BackupAsync(new string[] { DATAFOLDER }));
}
// Deterministic error backend
Library.DynamicLoader.BackendLoader.AddBackend(new DeterministicErrorBackend());
var failtarget = new DeterministicErrorBackend().ProtocolKey + "://" + TARGETFOLDER;
var operation = before
? DeterministicErrorBackend.BackendAction.PutBefore
: DeterministicErrorBackend.BackendAction.PutAfter;
// Fail when uploading the first dlist file
DeterministicErrorBackend.ErrorGenerator = (DeterministicErrorBackend.BackendAction action, string remotename) =>
{
if (action == operation && remotename.Contains(".dlist."))
return true;
return false;
};
for (var i = 0; i < runs; i++)
{
if (modifyInBetween)
ModifySourceFiles();
using (var c = new Controller(failtarget, testopts, null))
try
{
await c.BackupAsync(new string[] { DATAFOLDER });
}
catch (DeterministicErrorBackend.DeterministicErrorBackendException)
{
}
// Prevent clashes in timestamps
Thread.Sleep(3000);
}
if (modifyInBetween)
ModifySourceFiles();
// Make a new backup, should continue as normal
using (var c = new Controller("file://" + TARGETFOLDER, testopts, null))
{
var backupResults = await c.BackupAsync(new string[] { DATAFOLDER });
TestUtils.AssertResults(backupResults);
Assert.AreEqual(expectedFilesets, (await c.ListAsync()).Filesets.Count());
}
// Verify that all is in order
using (var c = new Controller("file://" + TARGETFOLDER, testopts.Expand(new { full_remote_verification = true }), null))
TestUtils.AssertResults(await c.TestAsync(long.MaxValue));
// Test that we can recreate
var recreatedDatabaseFile = Path.Combine(BASEFOLDER, "recreated-database.sqlite");
if (File.Exists(recreatedDatabaseFile))
File.Delete(recreatedDatabaseFile);
testopts["dbpath"] = recreatedDatabaseFile;
using (var c = new Controller("file://" + TARGETFOLDER, testopts, null))
TestUtils.AssertResults(await c.RepairAsync());
// Check that we have 2 versions
using (var c = new Controller("file://" + TARGETFOLDER, testopts, null))
{
var listResults = await c.ListAsync();
TestUtils.AssertResults(listResults);
Assert.AreEqual(expectedFilesets, listResults.Filesets.Count());
}
}
private class LogSink : IMessageSink
{
public List<string> StartedFiles { get; } = new List<string>();
public List<string> CompletedFiles { get; } = new List<string>();
public void BackendEvent(BackendActionType action, BackendEventType type, string path, long size)
{
if (action == BackendActionType.Put && type == BackendEventType.Started)
{
this.StartedFiles.Add(path);
}
if (action == BackendActionType.Put && type == BackendEventType.Completed)
{
this.CompletedFiles.Add(path);
}
}
public void SetBackendProgress(IBackendProgress progress)
{
}
public void SetOperationProgress(IOperationProgress progress)
{
}
public void WriteMessage(LogEntry entry)
{
}
}
[Test]
[Category("Disruption")]
public async Task TestDblockUploadWithOperationCancellationAsync()
{
await TestUploadWithOperationCancellationAsync(".dblock.");
}
[Test]
[Category("Disruption")]
public async Task TestDindexUploadWithOperationCancellationAsync()
{
await TestUploadWithOperationCancellationAsync(".dindex.");
}
[Test]
[Category("Disruption")]
public async Task TestDlistUploadWithOperationCancellationAsync()
{
await TestUploadWithOperationCancellationAsync(".dlist.");
}
private async Task TestUploadWithOperationCancellationAsync(string filefragment)
{
var testopts = TestOptions;
testopts["number-of-retries"] = "1";
testopts["dblock-size"] = "10mb";
// Make a base backup
using (var c = new Controller("file://" + TARGETFOLDER, testopts, null))
TestUtils.AssertResults(await c.BackupAsync(new string[] { DATAFOLDER }));
// Make a new backup that fails uploading a dblock file
ModifySourceFiles();
// Deterministic error backend
Library.DynamicLoader.BackendLoader.AddBackend(new DeterministicErrorBackend());
var failtarget = new DeterministicErrorBackend().ProtocolKey + "://" + TARGETFOLDER;
var uploadCount = 0;
var failstep = DeterministicErrorBackend.BackendAction.PutBefore;
// Fail the upload before
DeterministicErrorBackend.ErrorGenerator = (DeterministicErrorBackend.BackendAction action, string remotename) =>
{
if (action == failstep && remotename.Contains(filefragment))
{
// Fail once with a cancellation
if (Interlocked.Increment(ref uploadCount) == 1)
throw new OperationCanceledException();
}
return false;
};
using (var c = new Controller(failtarget, testopts, null))
{
var sink = new LogSink();
await c.AppendSinkAsync(sink);
var res = await c.BackupAsync(new string[] { DATAFOLDER });
if (uploadCount == 0)
Assert.Fail("Upload count was not incremented");
Assert.AreEqual(2, (await c.ListAsync()).Filesets.Count());
Assert.AreEqual(2, Directory.GetFiles(TARGETFOLDER, "*.dlist.*", SearchOption.TopDirectoryOnly).Count());
Assert.AreEqual(7 * 2 + 1, sink.CompletedFiles.Count); // 7 completed (dblock + dindex) + 1 dlist
Assert.AreEqual(7 * 2 + 2, sink.StartedFiles.Count); // 1 retry
Assert.AreEqual(sink.CompletedFiles.Count(x => x.Contains(".dblock.")), sink.CompletedFiles.Count(x => x.Contains(".dindex.")));
Assert.AreEqual(1, res.BackendStatistics.RetryAttempts);
}
uploadCount = 0;
failstep = DeterministicErrorBackend.BackendAction.PutAfter;
ModifySourceFiles();
using (var c = new Controller(failtarget, testopts, null))
{
var sink = new LogSink();
await c.AppendSinkAsync(sink);
var res = await c.BackupAsync(new string[] { DATAFOLDER });
if (uploadCount == 0)
Assert.Fail("Upload count was not incremented");
Assert.AreEqual(3, (await c.ListAsync()).Filesets.Count());
Assert.AreEqual(3, Directory.GetFiles(TARGETFOLDER, "*.dlist.*", SearchOption.TopDirectoryOnly).Count());
Assert.AreEqual(7 * 2 + 1, sink.CompletedFiles.Count); // 7 completed (dblock + dindex) + 1 dlist
Assert.AreEqual(7 * 2 + 2, sink.StartedFiles.Count); // 1 retry
Assert.AreEqual(sink.CompletedFiles.Count(x => x.Contains(".dblock.")), sink.CompletedFiles.Count(x => x.Contains(".dindex.")));
Assert.AreEqual(1, res.BackendStatistics.RetryAttempts);
}
ModifySourceFiles();
// Create a regular backup
using (var c = new Controller("file://" + TARGETFOLDER, testopts, null))
TestUtils.AssertResults(await c.BackupAsync(new string[] { DATAFOLDER }));
// Verify that all is in order
using (var c = new Controller("file://" + TARGETFOLDER, testopts.Expand(new { full_remote_verification = true }), null))
TestUtils.AssertResults(await c.TestAsync(long.MaxValue));
// Test that we can recreate
var recreatedDatabaseFile = Path.Combine(BASEFOLDER, "recreated-database.sqlite");
if (File.Exists(recreatedDatabaseFile))
File.Delete(recreatedDatabaseFile);
testopts["dbpath"] = recreatedDatabaseFile;
using (var c = new Controller("file://" + TARGETFOLDER, testopts, null))
TestUtils.AssertResults(await c.RepairAsync());
// Check that we have 3 versions
using (var c = new Controller("file://" + TARGETFOLDER, testopts, null))
{
var listResults = await c.ListAsync();
TestUtils.AssertResults(listResults);
Assert.AreEqual(4, listResults.Filesets.Count());
}
}
}
}