diff --git a/osu.Game.Tests/Visual/Playlists/TestScenePlaylistsRoomSubScreen.cs b/osu.Game.Tests/Visual/Playlists/TestScenePlaylistsRoomSubScreen.cs
index 5f9e06fda5..de84ca680d 100644
--- a/osu.Game.Tests/Visual/Playlists/TestScenePlaylistsRoomSubScreen.cs
+++ b/osu.Game.Tests/Visual/Playlists/TestScenePlaylistsRoomSubScreen.cs
@@ -5,25 +5,64 @@ using System;
 using System.Linq;
 using NUnit.Framework;
 using osu.Framework.Allocation;
+using osu.Framework.Audio;
+using osu.Framework.Extensions;
+using osu.Framework.Platform;
 using osu.Framework.Screens;
 using osu.Framework.Testing;
+using osu.Game.Beatmaps;
 using osu.Game.Graphics.UserInterface;
 using osu.Game.Online.API;
 using osu.Game.Online.API.Requests.Responses;
 using osu.Game.Online.Rooms;
 using osu.Game.Online.Rooms.RoomStatuses;
+using osu.Game.Rulesets;
+using osu.Game.Rulesets.Osu.Mods;
+using osu.Game.Scoring;
 using osu.Game.Screens.OnlinePlay.Playlists;
+using osu.Game.Tests.Resources;
 using osu.Game.Tests.Visual.OnlinePlay;
 
 namespace osu.Game.Tests.Visual.Playlists
 {
     public partial class TestScenePlaylistsRoomSubScreen : OnlinePlayTestScene
     {
+        private const double track_length = 10000;
+
         [Resolved]
         private IAPIProvider api { get; set; } = null!;
 
         protected new TestRoomManager RoomManager => (TestRoomManager)base.RoomManager;
 
+        private BeatmapManager beatmaps = null!;
+        private RulesetStore rulesets = null!;
+        private BeatmapSetInfo? importedSet;
+
+        [BackgroundDependencyLoader]
+        private void load(GameHost host, AudioManager audio)
+        {
+            Dependencies.Cache(rulesets = new RealmRulesetStore(Realm));
+            Dependencies.Cache(beatmaps = new BeatmapManager(LocalStorage, Realm, null, audio, Resources, host, Beatmap.Default));
+            Dependencies.Cache(new ScoreManager(rulesets, () => beatmaps, LocalStorage, Realm, API));
+            Dependencies.Cache(Realm);
+
+            beatmaps.Import(TestResources.GetQuickTestBeatmapForImport()).WaitSafely();
+
+            Realm.Write(r =>
+            {
+                foreach (var set in r.All<BeatmapSetInfo>())
+                {
+                    foreach (var b in set.Beatmaps)
+                    {
+                        // These will all have a virtual track length of 1000, see WorkingBeatmap.GetVirtualTrack().
+                        b.Length = track_length - 1000;
+                    }
+                }
+            });
+
+            importedSet = beatmaps.GetAllUsableBeatmapSets().First();
+        }
+
         [Test]
         public void TestStatusUpdateOnEnter()
         {
@@ -69,5 +108,42 @@ namespace osu.Game.Tests.Visual.Playlists
             AddAssert("close button present", () => roomScreen.ChildrenOfType<DangerousRoundedButton>().Any());
             AddUntilStep("wait for close button to disappear", () => !roomScreen.ChildrenOfType<DangerousRoundedButton>().Any());
         }
+
+        [TestCase(120_000, true)] // Definitely enough time.
+        [TestCase(45_000, true)] // Enough time.
+        [TestCase(35_000, false)] // Not enough time to complete beatmap after lenience.
+        [TestCase(20_000, false)] // Not enough time.
+        [TestCase(5_000, false)] // Not enough time to complete beatmap before lenience.
+        [TestCase(37_500, true, 2)] // Enough time to complete beatmap after mods are applied.
+        public void TestReadyButtonEnablementPeriod(int offsetMs, bool enabled, double rate = 1)
+        {
+            Room room = null!;
+            PlaylistsRoomSubScreen roomScreen = null!;
+
+            AddStep("create room", () =>
+            {
+                RoomManager.AddRoom(room = new Room
+                {
+                    Name = @"Test Room",
+                    Host = api.LocalUser.Value,
+                    Category = RoomCategory.Normal,
+                    StartDate = DateTimeOffset.Now,
+                    EndDate = DateTimeOffset.Now.AddMilliseconds(offsetMs),
+                    Playlist =
+                    [
+                        new PlaylistItem(importedSet!.Beatmaps[0])
+                        {
+                            RequiredMods = rate == 1
+                                ? []
+                                : [new APIMod(new OsuModDoubleTime { SpeedChange = { Value = rate } })]
+                        }
+                    ]
+                });
+            });
+
+            AddStep("push screen", () => LoadScreen(roomScreen = new PlaylistsRoomSubScreen(room)));
+            AddUntilStep("wait for screen load", () => roomScreen.IsCurrentScreen());
+            AddUntilStep("ready button enabled", () => roomScreen.ChildrenOfType<PlaylistsReadyButton>().SingleOrDefault()?.Enabled.Value, () => Is.EqualTo(enabled));
+        }
     }
 }