1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
|
using System;
using System.Diagnostics;
using System.Threading;
using System.Threading.Tasks;
using Emby.Server.Implementations.EntryPoints;
using MediaBrowser.Controller.Entities;
using MediaBrowser.Controller.Library;
using MediaBrowser.Controller.Session;
using MediaBrowser.Model.Entities;
using MediaBrowser.Model.Session;
using Moq;
using Xunit;
namespace Jellyfin.Server.Implementations.Tests.EntryPoints;
public class UserDataChangeNotifierTests
{
// How long a test waits for the notifier's timer callback to run. Generous: the assertions are
// about a batch being sent at all, not about how promptly.
private static readonly TimeSpan _flushTimeout = TimeSpan.FromSeconds(15);
private readonly Mock<IUserDataManager> _userDataManager = new();
private readonly Mock<ISessionManager> _sessionManager = new();
private readonly Mock<IUserManager> _userManager = new();
private int _flushCount;
public UserDataChangeNotifierTests()
{
_sessionManager
.Setup(e => e.SendMessageToUserSessions(
It.IsAny<System.Collections.Generic.List<Guid>>(),
SessionMessageType.UserDataChanged,
It.IsAny<Func<UserDataChangeInfo>>(),
It.IsAny<CancellationToken>()))
.Callback(() => Interlocked.Increment(ref _flushCount))
.Returns(Task.CompletedTask);
}
[Fact]
public async Task OnUserDataSaved_ChangesNeverPause_StillSendsOnTheWindow()
{
// A scan changes user data continuously. The window must run from the first change of a batch,
// or the batch never closes and holds every item it named alive for the length of the scan.
var notifier = CreateNotifier();
await notifier.StartAsync(TestContext.Current.CancellationToken);
var userId = Guid.NewGuid();
var stopwatch = Stopwatch.StartNew();
while (stopwatch.Elapsed < _flushTimeout && Volatile.Read(ref _flushCount) == 0)
{
// Well below the window, and well below the size cap over the whole loop.
RaiseUserDataSaved(userId);
await Task.Delay(25, TestContext.Current.CancellationToken);
}
Assert.True(Volatile.Read(ref _flushCount) > 0, "The batch was never sent while changes kept arriving.");
await notifier.StopAsync(TestContext.Current.CancellationToken);
notifier.Dispose();
}
private UserDataChangeNotifier CreateNotifier()
=> new(_userDataManager.Object, _sessionManager.Object, _userManager.Object);
// A folder needs none of BaseItem's static services, and PlaybackProgress is the one reason the
// notifier ignores outright.
private void RaiseUserDataSaved(Guid userId)
=> _userDataManager.Raise(
e => e.UserDataSaved += null,
_userDataManager.Object,
new UserDataSaveEventArgs
{
UserId = userId,
SaveReason = UserDataSaveReason.UpdateUserRating,
Item = new Folder { Id = Guid.NewGuid() }
});
}
|
