duplicati/Duplicati/UnitTest/Issue6127.cs

// Copyright (C) 2025, The Duplicati Team
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// 
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// 
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using System.IO;
using System.Linq;
using System.Threading;
using NUnit.Framework;

namespace Duplicati.UnitTest
{
    public class Issue6127 : BasicSetupHelper
    {
        [Test]
        [Category("Targeted")]
        public void TestMultiRetentionOptions()
        {
            var testopts = TestOptions;
            testopts.Add("upload-unchanged-backups", "true");

            // Prepare some data
            var data = new byte[1024 * 1024 * 10];
            File.WriteAllBytes(Path.Combine(DATAFOLDER, "a"), data);

            // Make three backups
            for (var i = 0; i < 3; i++)
            {
                using (var c = new Library.Main.Controller("file://" + TARGETFOLDER, testopts, null))
                {
                    var res = c.Backup([DATAFOLDER]);
                    TestUtils.AssertResults(res);
                    Assert.That(c.List(null).Filesets.Count(), Is.EqualTo(i + 1), "Backup count mismatch after backup " + i);
                }
                Thread.Sleep(1000);
            }

            // Make sure we have something to delete
            Thread.Sleep(1000);

            using (var c = new Library.Main.Controller("file://" + TARGETFOLDER, testopts.Expand(new { version = 2, retention_policy = "1s:U" }), null))
                TestUtils.AssertResults(c.Delete());

            using (var c = new Library.Main.Controller("file://" + TARGETFOLDER, testopts.Expand(new { version = 2, retention_policy = "1s:U" }), null))
                Assert.That(c.List(null).Filesets.Count(), Is.EqualTo(1), "Backup count mismatch after delete");
        }
    }
}