Rewrite test scene and add more tests

osu.Game.Tests/Visual/Multiplayer/TestSceneTimeshiftResultsScreen.cs

@@ -3,14 +3,24 @@
 
 using System;
 using System.Collections.Generic;
+using System.Linq;
+using System.Net;
 using System.Threading.Tasks;
+using JetBrains.Annotations;
+using Newtonsoft.Json.Linq;
 using NUnit.Framework;
+using osu.Framework.Graphics.Containers;
+using osu.Framework.Testing;
+using osu.Game.Graphics.Containers;
+using osu.Game.Graphics.UserInterface;
 using osu.Game.Online.API;
+using osu.Game.Online.API.Requests;
 using osu.Game.Online.Multiplayer;
 using osu.Game.Rulesets.Osu;
 using osu.Game.Rulesets.Scoring;
 using osu.Game.Scoring;
 using osu.Game.Screens.Multi.Ranking;
+using osu.Game.Screens.Ranking;
 using osu.Game.Tests.Beatmaps;
 using osu.Game.Users;
 
@@ -18,43 +28,134 @@ namespace osu.Game.Tests.Visual.Multiplayer
 {
     public class TestSceneTimeshiftResultsScreen : ScreenTestScene
     {
-        private bool roomsReceived;
+        private const int scores_per_result = 10;
+
+        private TestResultsScreen resultsScreen;
+        private int currentScoreId;
+        private bool requestComplete;
 
         [SetUp]
         public void Setup() => Schedule(() =>
         {
-            roomsReceived = false;
+            currentScoreId = 0;
+            requestComplete = false;
             bindHandler();
         });
 
         [Test]
-        public void TestShowResultsWithScore()
+        public void TestShowWithUserScore()
         {
-            createResults(new TestScoreInfo(new OsuRuleset().RulesetInfo));
-            AddWaitStep("wait for display", 5);
+            ScoreInfo userScore = null;
+
+            AddStep("bind user score info handler", () =>
+            {
+                userScore = new TestScoreInfo(new OsuRuleset().RulesetInfo) { OnlineScoreID = currentScoreId++ };
+                bindHandler(userScore: userScore);
+            });
+
+            createResults(() => userScore);
+            waitForDisplay();
+
+            AddAssert("user score selected", () => this.ChildrenOfType<ScorePanel>().Single(p => p.Score.OnlineScoreID == userScore.OnlineScoreID).State == PanelState.Expanded);
         }
 
         [Test]
-        public void TestShowResultsNullScore()
+        public void TestShowNullUserScore()
         {
-            createResults(null);
-            AddWaitStep("wait for display", 5);
+            createResults();
+            waitForDisplay();
+
+            AddAssert("top score selected", () => this.ChildrenOfType<ScorePanel>().OrderByDescending(p => p.Score.TotalScore).First().State == PanelState.Expanded);
         }
 
         [Test]
-        public void TestShowResultsNullScoreWithDelay()
+        public void TestShowUserScoreWithDelay()
+        {
+            ScoreInfo userScore = null;
+
+            AddStep("bind user score info handler", () =>
+            {
+                userScore = new TestScoreInfo(new OsuRuleset().RulesetInfo) { OnlineScoreID = currentScoreId++ };
+                bindHandler(3000, userScore);
+            });
+
+            createResults(() => userScore);
+            waitForDisplay();
+
+            AddAssert("more than 1 panel displayed", () => this.ChildrenOfType<ScorePanel>().Count() > 1);
+            AddAssert("user score selected", () => this.ChildrenOfType<ScorePanel>().Single(p => p.Score.OnlineScoreID == userScore.OnlineScoreID).State == PanelState.Expanded);
+        }
+
+        [Test]
+        public void TestShowNullUserScoreWithDelay()
         {
             AddStep("bind delayed handler", () => bindHandler(3000));
-            createResults(null);
-            AddUntilStep("wait for rooms to be received", () => roomsReceived);
-            AddWaitStep("wait for display", 5);
+
+            createResults();
+            waitForDisplay();
+
+            AddAssert("top score selected", () => this.ChildrenOfType<ScorePanel>().OrderByDescending(p => p.Score.TotalScore).First().State == PanelState.Expanded);
         }
 
-        private void createResults(ScoreInfo score)
+        [Test]
+        public void TestFetchWhenScrolledToTheRight()
+        {
+            createResults();
+            waitForDisplay();
+
+            AddStep("bind delayed handler", () => bindHandler(3000));
+
+            for (int i = 0; i < 2; i++)
+            {
+                int beforePanelCount = 0;
+
+                AddStep("get panel count", () => beforePanelCount = this.ChildrenOfType<ScorePanel>().Count());
+                AddStep("scroll to right", () => resultsScreen.ScorePanelList.ChildrenOfType<OsuScrollContainer>().Single().ScrollToEnd(false));
+
+                AddAssert("right loading spinner shown", () => resultsScreen.RightSpinner.State.Value == Visibility.Visible);
+                waitForDisplay();
+
+                AddAssert($"count increased by {scores_per_result}", () => this.ChildrenOfType<ScorePanel>().Count() == beforePanelCount + scores_per_result);
+                AddAssert("right loading spinner hidden", () => resultsScreen.RightSpinner.State.Value == Visibility.Hidden);
+            }
+        }
+
+        [Test]
+        public void TestFetchWhenScrolledToTheLeft()
+        {
+            ScoreInfo userScore = null;
+
+            AddStep("bind user score info handler", () =>
+            {
+                userScore = new TestScoreInfo(new OsuRuleset().RulesetInfo) { OnlineScoreID = currentScoreId++ };
+                bindHandler(userScore: userScore);
+            });
+
+            createResults(() => userScore);
+            waitForDisplay();
+
+            AddStep("bind delayed handler", () => bindHandler(3000));
+
+            for (int i = 0; i < 2; i++)
+            {
+                int beforePanelCount = 0;
+
+                AddStep("get panel count", () => beforePanelCount = this.ChildrenOfType<ScorePanel>().Count());
+                AddStep("scroll to left", () => resultsScreen.ScorePanelList.ChildrenOfType<OsuScrollContainer>().Single().ScrollToStart(false));
+
+                AddAssert("left loading spinner shown", () => resultsScreen.LeftSpinner.State.Value == Visibility.Visible);
+                waitForDisplay();
+
+                AddAssert($"count increased by {scores_per_result}", () => this.ChildrenOfType<ScorePanel>().Count() == beforePanelCount + scores_per_result);
+                AddAssert("left loading spinner hidden", () => resultsScreen.LeftSpinner.State.Value == Visibility.Hidden);
+            }
+        }
+
+        private void createResults(Func<ScoreInfo> getScore = null)
         {
             AddStep("load results", () =>
             {
-                LoadScreen(new TimeshiftResultsScreen(score, 1, new PlaylistItem
+                LoadScreen(resultsScreen = new TestResultsScreen(getScore?.Invoke(), 1, new PlaylistItem
                 {
                     Beatmap = { Value = new TestBeatmap(new OsuRuleset().RulesetInfo).BeatmapInfo },
                     Ruleset = { Value = new OsuRuleset().RulesetInfo }
@@ -62,62 +163,213 @@ namespace osu.Game.Tests.Visual.Multiplayer
             });
         }
 
-        private void bindHandler(double delay = 0)
+        private void waitForDisplay()
         {
-            var roomScores = new List<MultiplayerScore>();
+            AddUntilStep("wait for request to complete", () => requestComplete);
+            AddWaitStep("wait for display", 5);
+        }
 
-            for (int i = 0; i < 10; i++)
+        private void bindHandler(double delay = 0, ScoreInfo userScore = null, bool failRequests = false) => ((DummyAPIAccess)API).HandleRequest = request =>
+        {
+            requestComplete = false;
+
+            if (failRequests)
             {
-                roomScores.Add(new MultiplayerScore
+                triggerFail(request, delay);
+                return;
+            }
+
+            switch (request)
+            {
+                case ShowPlaylistUserScoreRequest s:
+                    if (userScore == null)
+                        triggerFail(s, delay);
+                    else
+                        triggerSuccess(s, createUserResponse(userScore), delay);
+                    break;
+
+                case IndexPlaylistScoresRequest i:
+                    triggerSuccess(i, createIndexResponse(i), delay);
+                    break;
+            }
+        };
+
+        private void triggerSuccess<T>(APIRequest<T> req, T result, double delay)
+            where T : class
+        {
+            if (delay == 0)
+                success();
+            else
+            {
+                Task.Run(async () =>
                 {
-                    ID = i,
-                    Accuracy = 0.9 - 0.01 * i,
-                    EndedAt = DateTimeOffset.Now.Subtract(TimeSpan.FromHours(i)),
+                    await Task.Delay(TimeSpan.FromMilliseconds(delay));
+                    Schedule(success);
+                });
+            }
+
+            void success()
+            {
+                requestComplete = true;
+                req.TriggerSuccess(result);
+            }
+        }
+
+        private void triggerFail(APIRequest req, double delay)
+        {
+            if (delay == 0)
+                fail();
+            else
+            {
+                Task.Run(async () =>
+                {
+                    await Task.Delay(TimeSpan.FromMilliseconds(delay));
+                    Schedule(fail);
+                });
+            }
+
+            void fail()
+            {
+                requestComplete = true;
+                req.TriggerFailure(new WebException("Failed."));
+            }
+        }
+
+        private MultiplayerScore createUserResponse([NotNull] ScoreInfo userScore)
+        {
+            var multiplayerUserScore = new MultiplayerScore
+            {
+                ID = (int)(userScore.OnlineScoreID ?? currentScoreId++),
+                Accuracy = userScore.Accuracy,
+                EndedAt = userScore.Date,
+                Passed = userScore.Passed,
+                Rank = userScore.Rank,
+                MaxCombo = userScore.MaxCombo,
+                TotalScore = userScore.TotalScore,
+                User = userScore.User,
+                Statistics = userScore.Statistics,
+                ScoresAround = new MultiplayerScoresAround
+                {
+                    Higher = new MultiplayerScores(),
+                    Lower = new MultiplayerScores()
+                }
+            };
+
+            for (int i = 1; i <= scores_per_result; i++)
+            {
+                multiplayerUserScore.ScoresAround.Lower.Scores.Add(new MultiplayerScore
+                {
+                    ID = currentScoreId++,
+                    Accuracy = userScore.Accuracy,
+                    EndedAt = userScore.Date,
                     Passed = true,
-                    Rank = ScoreRank.B,
-                    MaxCombo = 999,
-                    TotalScore = 999999 - i * 1000,
+                    Rank = userScore.Rank,
+                    MaxCombo = userScore.MaxCombo,
+                    TotalScore = userScore.TotalScore - i,
                     User = new User
                     {
                         Id = 2,
                         Username = $"peppy{i}",
                         CoverUrl = "https://osu.ppy.sh/images/headers/profile-covers/c3.jpg",
                     },
-                    Statistics =
+                    Statistics = userScore.Statistics
+                });
+
+                multiplayerUserScore.ScoresAround.Higher.Scores.Add(new MultiplayerScore
+                {
+                    ID = currentScoreId++,
+                    Accuracy = userScore.Accuracy,
+                    EndedAt = userScore.Date,
+                    Passed = true,
+                    Rank = userScore.Rank,
+                    MaxCombo = userScore.MaxCombo,
+                    TotalScore = userScore.TotalScore + i,
+                    User = new User
+                    {
+                        Id = 2,
+                        Username = $"peppy{i}",
+                        CoverUrl = "https://osu.ppy.sh/images/headers/profile-covers/c3.jpg",
+                    },
+                    Statistics = userScore.Statistics
+                });
+            }
+
+            addCursor(multiplayerUserScore.ScoresAround.Lower);
+            addCursor(multiplayerUserScore.ScoresAround.Higher);
+
+            return multiplayerUserScore;
+        }
+
+        private IndexedMultiplayerScores createIndexResponse(IndexPlaylistScoresRequest req)
+        {
+            var result = new IndexedMultiplayerScores();
+
+            long startTotalScore = req.Cursor?.Properties["total_score"].ToObject<long>() ?? 1000000;
+            string sort = req.IndexParams?.Properties["sort"].ToObject<string>() ?? "score_desc";
+
+            for (int i = 1; i <= scores_per_result; i++)
+            {
+                result.Scores.Add(new MultiplayerScore
+                {
+                    ID = currentScoreId++,
+                    Accuracy = 1,
+                    EndedAt = DateTimeOffset.Now,
+                    Passed = true,
+                    Rank = ScoreRank.X,
+                    MaxCombo = 1000,
+                    TotalScore = startTotalScore + (sort == "score_asc" ? i : -i),
+                    User = new User
+                    {
+                        Id = 2,
+                        Username = $"peppy{i}",
+                        CoverUrl = "https://osu.ppy.sh/images/headers/profile-covers/c3.jpg",
+                    },
+                    Statistics = new Dictionary<HitResult, int>
                     {
                         { HitResult.Miss, 1 },
                         { HitResult.Meh, 50 },
                         { HitResult.Good, 100 },
-                        { HitResult.Great, 300 },
+                        { HitResult.Great, 300 }
                     }
                 });
             }
 
-            ((DummyAPIAccess)API).HandleRequest = request =>
+            addCursor(result);
+
+            return result;
+        }
+
+        private void addCursor(MultiplayerScores scores)
+        {
+            scores.Cursor = new Cursor
             {
-                switch (request)
+                Properties = new Dictionary<string, JToken>
                 {
-                    case IndexPlaylistScoresRequest r:
-                        if (delay == 0)
-                            success();
-                        else
-                        {
-                            Task.Run(async () =>
-                            {
-                                await Task.Delay(TimeSpan.FromMilliseconds(delay));
-                                Schedule(success);
-                            });
-                        }
+                    { "total_score", JToken.FromObject(scores.Scores[^1].TotalScore) },
+                    { "score_id", JToken.FromObject(scores.Scores[^1].ID) },
+                }
+            };
 
-                        void success()
-                        {
-                            r.TriggerSuccess(new IndexedMultiplayerScores { Scores = roomScores });
-                            roomsReceived = true;
-                        }
-
-                        break;
+            scores.Params = new IndexScoresParams
+            {
+                Properties = new Dictionary<string, JToken>
+                {
+                    { "sort", JToken.FromObject(scores.Scores[^1].TotalScore > scores.Scores[^2].TotalScore ? "score_asc" : "score_desc") }
                 }
             };
         }
+
+        private class TestResultsScreen : TimeshiftResultsScreen
+        {
+            public new LoadingSpinner LeftSpinner => base.LeftSpinner;
+            public new LoadingSpinner CentreSpinner => base.CentreSpinner;
+            public new LoadingSpinner RightSpinner => base.RightSpinner;
+            public new ScorePanelList ScorePanelList => base.ScorePanelList;
+
+            public TestResultsScreen(ScoreInfo score, int roomId, PlaylistItem playlistItem, bool allowRetry = true)
+                : base(score, roomId, playlistItem, allowRetry)
+            {
+            }
+        }
     }
 }

osu.Game/Online/Multiplayer/IndexPlaylistScoresRequest.cs

@@ -1,6 +1,7 @@
 // Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
 // See the LICENCE file in the repository root for full licence text.
 
+using System.Diagnostics;
 using JetBrains.Annotations;
 using osu.Framework.IO.Network;
 using osu.Game.Extensions;
@@ -14,39 +15,45 @@ namespace osu.Game.Online.Multiplayer
     /// </summary>
     public class IndexPlaylistScoresRequest : APIRequest<IndexedMultiplayerScores>
     {
-        private readonly int roomId;
-        private readonly int playlistItemId;
-        private readonly Cursor cursor;
-        private readonly IndexScoresParams indexParams;
+        public readonly int RoomId;
+        public readonly int PlaylistItemId;
+
+        [CanBeNull]
+        public readonly Cursor Cursor;
+
+        [CanBeNull]
+        public readonly IndexScoresParams IndexParams;
 
         public IndexPlaylistScoresRequest(int roomId, int playlistItemId)
         {
-            this.roomId = roomId;
-            this.playlistItemId = playlistItemId;
+            RoomId = roomId;
+            PlaylistItemId = playlistItemId;
         }
 
         public IndexPlaylistScoresRequest(int roomId, int playlistItemId, [NotNull] Cursor cursor, [NotNull] IndexScoresParams indexParams)
             : this(roomId, playlistItemId)
         {
-            this.cursor = cursor;
-            this.indexParams = indexParams;
+            Cursor = cursor;
+            IndexParams = indexParams;
         }
 
         protected override WebRequest CreateWebRequest()
         {
             var req = base.CreateWebRequest();
 
-            if (cursor != null)
+            if (Cursor != null)
             {
-                req.AddCursor(cursor);
+                Debug.Assert(IndexParams != null);
 
-                foreach (var (key, value) in indexParams.Properties)
+                req.AddCursor(Cursor);
+
+                foreach (var (key, value) in IndexParams.Properties)
                     req.AddParameter(key, value.ToString());
             }
 
             return req;
         }
 
-        protected override string Target => $@"rooms/{roomId}/playlist/{playlistItemId}/scores";
+        protected override string Target => $@"rooms/{RoomId}/playlist/{PlaylistItemId}/scores";
     }
 }

osu.Game/Screens/Multi/Ranking/TimeshiftResultsScreen.cs

@@ -22,9 +22,10 @@ namespace osu.Game.Screens.Multi.Ranking
         private readonly int roomId;
         private readonly PlaylistItem playlistItem;
 
-        private LoadingSpinner leftLoadingLayer;
-        private LoadingSpinner centreLoadingLayer;
-        private LoadingSpinner rightLoadingLayer;
+        protected LoadingSpinner LeftSpinner { get; private set; }
+        protected LoadingSpinner CentreSpinner { get; private set; }
+        protected LoadingSpinner RightSpinner { get; private set; }
+
         private MultiplayerScores higherScores;
         private MultiplayerScores lowerScores;
 
@@ -47,18 +48,18 @@ namespace osu.Game.Screens.Multi.Ranking
                 Padding = new MarginPadding { Bottom = TwoLayerButton.SIZE_EXTENDED.Y },
                 Children = new Drawable[]
                 {
-                    leftLoadingLayer = new PanelListLoadingSpinner(ScorePanelList)
+                    LeftSpinner = new PanelListLoadingSpinner(ScorePanelList)
                     {
                         Anchor = Anchor.CentreLeft,
                         Origin = Anchor.Centre,
                     },
-                    centreLoadingLayer = new PanelListLoadingSpinner(ScorePanelList)
+                    CentreSpinner = new PanelListLoadingSpinner(ScorePanelList)
                     {
                         Anchor = Anchor.Centre,
                         Origin = Anchor.Centre,
                         State = { Value = Score == null ? Visibility.Visible : Visibility.Hidden },
                     },
-                    rightLoadingLayer = new PanelListLoadingSpinner(ScorePanelList)
+                    RightSpinner = new PanelListLoadingSpinner(ScorePanelList)
                     {
                         Anchor = Anchor.CentreRight,
                         Origin = Anchor.Centre,
@@ -110,9 +111,9 @@ namespace osu.Game.Screens.Multi.Ranking
                 return null;
 
             if (pivot == higherScores)
-                leftLoadingLayer.Show();
+                LeftSpinner.Show();
             else
-                rightLoadingLayer.Show();
+                RightSpinner.Show();
 
             return createIndexRequest(scoresCallback, pivot);
         }
@@ -174,12 +175,12 @@ namespace osu.Game.Screens.Multi.Ranking
 
         private void hideLoadingSpinners([CanBeNull] MultiplayerScores pivot = null)
         {
-            centreLoadingLayer.Hide();
+            CentreSpinner.Hide();
 
             if (pivot == lowerScores)
-                rightLoadingLayer.Hide();
+                RightSpinner.Hide();
             else if (pivot == higherScores)
-                leftLoadingLayer.Hide();
+                LeftSpinner.Hide();
         }
 
         private class PanelListLoadingSpinner : LoadingSpinner