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duplicati/Duplicati/UnitTest/FilterTest.cs
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C#

// Copyright (C) 2018, The Duplicati Team
// http://www.duplicati.com, info@duplicati.com
//
// This library is free software; you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as
// published by the Free Software Foundation; either version 2.1 of the
// License, or (at your option) any later version.
//
// This library 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
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using Duplicati.Library.Common.IO;
using Duplicati.Library.Interface;
using Duplicati.Library.Utility;
using NUnit.Framework;
namespace Duplicati.UnitTest
{
public class FilterTest : BasicSetupHelper
{
[Test]
[Category("Filter")]
public void TestEmptyFolderExclude()
{
var source = DATAFOLDER;
// Top level folder with no contents
Directory.CreateDirectory(Path.Combine(source, "empty-toplevel"));
// Top level folder with contents in one leaf
Directory.CreateDirectory(Path.Combine(source, "toplevel"));
// Empty folder
Directory.CreateDirectory(Path.Combine(source, "toplevel", "empty"));
// Folder with an excluded file
Directory.CreateDirectory(Path.Combine(source, "toplevel", "filteredempty"));
// Folder with contents
Directory.CreateDirectory(Path.Combine(source, "toplevel", "normal"));
// Folder with excludefile
Directory.CreateDirectory(Path.Combine(source, "toplevel", "excludefile"));
// Write a file that we will use for exclude target
File.WriteAllLines(Path.Combine(source, "toplevel", "excludefile", "exclude.me"), new string[] { });
File.WriteAllLines(Path.Combine(source, "toplevel", "excludefile", "anyfile.txt"), new string[] { "data" });
// Write a file that we will filter
File.WriteAllLines(Path.Combine(source, "toplevel", "filteredempty", "myfile.txt"), new string[] { "data" });
// Write a file that we will not filter
File.WriteAllLines(Path.Combine(source, "toplevel", "normal", "standard.txt"), new string[] { "data" });
// Get the default options
var testopts = TestOptions;
// Create a fileset with all data present
using (var c = new Library.Main.Controller("file://" + TARGETFOLDER, testopts, null))
{
IBackupResults backupResults = c.Backup(new string[] {DATAFOLDER});
Assert.AreEqual(0, backupResults.Errors.Count());
Assert.AreEqual(0, backupResults.Warnings.Count());
}
// Check that we have 4 files and 7 folders
using (var c = new Library.Main.Controller("file://" + TARGETFOLDER, testopts.Expand(new { version = 0 }), null))
{
var r = c.List("*");
Assert.AreEqual(0, r.Errors.Count());
Assert.AreEqual(0, r.Warnings.Count());
var folders = r.Files.Count(x => x.Path.EndsWith(Util.DirectorySeparatorString, StringComparison.Ordinal));
var files = r.Files.Count(x => !x.Path.EndsWith(Util.DirectorySeparatorString, StringComparison.Ordinal));
if (folders != 7)
throw new Exception($"Initial condition not satisfied, found {folders} folders, but expected 7");
if (files != 4)
throw new Exception($"Initial condition not satisfied, found {files} files, but expected 4");
}
// Toggle the exclude file, and build a new fileset
System.Threading.Thread.Sleep(5000);
testopts["ignore-filenames"] = "exclude.me";
using (var c = new Library.Main.Controller("file://" + TARGETFOLDER, testopts, null))
{
IBackupResults backupResults = c.Backup(new string[] {DATAFOLDER});
Assert.AreEqual(0, backupResults.Errors.Count());
Assert.AreEqual(0, backupResults.Warnings.Count());
}
// Check that we have 2 files and 6 folders after excluding the "excludefile" folder
using (var c = new Library.Main.Controller("file://" + TARGETFOLDER, testopts.Expand(new { version = 0 }), null))
{
var r = c.List("*");
Assert.AreEqual(0, r.Errors.Count());
Assert.AreEqual(0, r.Warnings.Count());
var folders = r.Files.Count(x => x.Path.EndsWith(Util.DirectorySeparatorString, StringComparison.Ordinal));
var files = r.Files.Count(x => !x.Path.EndsWith(Util.DirectorySeparatorString, StringComparison.Ordinal));
if (folders != 6)
throw new Exception($"Initial condition not satisfied, found {folders} folders, but expected 6");
if (files != 2)
throw new Exception($"Initial condition not satisfied, found {files} files, but expected 2");
}
// Toggle empty folder excludes, and run a new backup to remove them
System.Threading.Thread.Sleep(5000);
testopts["exclude-empty-folders"] = "true";
using (var c = new Library.Main.Controller("file://" + TARGETFOLDER, testopts, null))
{
IBackupResults backupResults = c.Backup(new string[] {DATAFOLDER});
Assert.AreEqual(0, backupResults.Errors.Count());
Assert.AreEqual(0, backupResults.Warnings.Count());
}
// Check that the two empty folders are now removed
using (var c = new Library.Main.Controller("file://" + TARGETFOLDER, testopts.Expand(new { version = 0 }), null))
{
var r = c.List("*");
Assert.AreEqual(0, r.Errors.Count());
Assert.AreEqual(0, r.Warnings.Count());
var folders = r.Files.Count(x => x.Path.EndsWith(Util.DirectorySeparatorString, StringComparison.Ordinal));
var files = r.Files.Count(x => !x.Path.EndsWith(Util.DirectorySeparatorString, StringComparison.Ordinal));
if (folders != 4)
throw new Exception($"Empty not satisfied, found {folders} folders, but expected 4");
if (files != 2)
throw new Exception($"Empty not satisfied, found {files} files, but expected 2");
}
// Filter out one file and rerun the backup to exclude the folder
System.Threading.Thread.Sleep(5000);
var excludefilter = new Library.Utility.FilterExpression($"*{System.IO.Path.DirectorySeparatorChar}myfile.txt", false);
using (var c = new Library.Main.Controller("file://" + TARGETFOLDER, testopts, null))
{
IBackupResults backupResults = c.Backup(new string[] {DATAFOLDER}, excludefilter);
Assert.AreEqual(0, backupResults.Errors.Count());
Assert.AreEqual(0, backupResults.Warnings.Count());
}
// Check that the empty folder is now removed
using (var c = new Library.Main.Controller("file://" + TARGETFOLDER, testopts.Expand(new { version = 0 }), null))
{
var r = c.List("*");
Assert.AreEqual(0, r.Errors.Count());
Assert.AreEqual(0, r.Warnings.Count());
var folders = r.Files.Count(x => x.Path.EndsWith(Util.DirectorySeparatorString, StringComparison.Ordinal));
var files = r.Files.Count(x => !x.Path.EndsWith(Util.DirectorySeparatorString, StringComparison.Ordinal));
if (folders != 3)
throw new Exception($"Empty not satisfied, found {folders} folders, but expected 3");
if (files != 1)
throw new Exception($"Empty not satisfied, found {files} files, but expected 1");
}
// Delete the one remaining file and check that we only have the top-level folder in the set
System.Threading.Thread.Sleep(5000);
File.Delete(Path.Combine(source, "toplevel", "normal", "standard.txt"));
using (var c = new Library.Main.Controller("file://" + TARGETFOLDER, testopts, null))
{
IBackupResults backupResults = c.Backup(new string[] {DATAFOLDER}, excludefilter);
Assert.AreEqual(0, backupResults.Errors.Count());
Assert.AreEqual(0, backupResults.Warnings.Count());
}
// Check we now have only one folder and no files
using (var c = new Library.Main.Controller("file://" + TARGETFOLDER, testopts.Expand(new { version = 0 }), null))
{
var r = c.List("*");
Assert.AreEqual(0, r.Errors.Count());
Assert.AreEqual(0, r.Warnings.Count());
var folders = r.Files.Count(x => x.Path.EndsWith(Util.DirectorySeparatorString, StringComparison.Ordinal));
var files = r.Files.Count(x => !x.Path.EndsWith(Util.DirectorySeparatorString, StringComparison.Ordinal));
if (folders != 1)
throw new Exception($"Empty not satisfied, found {folders} folders, but expected 1");
if (files != 0)
throw new Exception($"Empty not satisfied, found {files} files, but expected 0");
}
}
[Test]
[Category("Filter")]
public static void WildcardPatterns()
{
// These examples were taken from https://www.c-sharpcorner.com/uploadfile/b81385/efficient-string-matching-algorithm-with-use-of-wildcard-characters/.
Dictionary<string, string> shouldMatch = new Dictionary<string, string>
{
{ @"*", "Something" },
{ @"S*eth??g", "Something" },
{ @"A *?string*", "A very long long long stringggggggg" },
{ @"Performance issue when using *,Window server ???? R? and java *.*.*_*", "Performance issue when using WebSphere MQ 7.1 ,Window server 2008 R2 and java 1.6.0_21" },
{ @"Performance* and java 1.6.0_21", "Performance issue when using WebSphere MQ 7.1 ,Window server 2008 R2 and java 1.6.0_21" }
};
Dictionary<string, string> shouldNotMatch = new Dictionary<string, string>
{
{ @"Performance issue when using *,Window server ???? R? and java *.*.*_", "Performance issue when using WebSphere MQ 7.1 ,Window server 2008 R2 and java 1.6.0_21" }
};
foreach (KeyValuePair<string, string> entry in shouldMatch)
{
IFilter filter = new FilterExpression(entry.Key);
Assert.IsTrue(filter.Matches(entry.Value, out _, out _));
}
foreach (KeyValuePair<string, string> entry in shouldNotMatch)
{
IFilter filter = new FilterExpression(entry.Key);
Assert.IsFalse(filter.Matches(entry.Value, out _, out _));
}
}
}
}