Move all TestCases to Testing project

This allows tests to successfully retrieve rulesets, as they are referenced.

osu.Game.Tests/Visual/TestCaseEditorSummaryTimeline.cs

@@ -0,0 +1,93 @@
+// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
+// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
+
+using System;
+using System.Collections.Generic;
+using osu.Framework.Audio.Track;
+using osu.Framework.Graphics.Textures;
+using osu.Framework.Graphics;
+using osu.Game.Beatmaps;
+using osu.Game.Beatmaps.ControlPoints;
+using OpenTK;
+using osu.Game.Screens.Edit.Components.Timelines.Summary;
+using osu.Framework.Configuration;
+
+namespace osu.Game.Tests.Visual
+{
+    internal class TestCaseEditorSummaryTimeline : OsuTestCase
+    {
+        private const int length = 60000;
+        private readonly Random random;
+
+        public override IReadOnlyList<Type> RequiredTypes => new[] { typeof(SummaryTimeline) };
+
+        private readonly Bindable<WorkingBeatmap> beatmap = new Bindable<WorkingBeatmap>();
+
+        public TestCaseEditorSummaryTimeline()
+        {
+            random = new Random(1337);
+
+            SummaryTimeline summaryTimeline;
+            Add(summaryTimeline = new SummaryTimeline
+            {
+                Anchor = Anchor.Centre,
+                Origin = Anchor.Centre,
+                Size = new Vector2(500, 50)
+            });
+
+            summaryTimeline.Beatmap.BindTo(beatmap);
+
+            AddStep("New beatmap", newBeatmap);
+
+            newBeatmap();
+        }
+
+        private void newBeatmap()
+        {
+            var b = new Beatmap();
+
+            for (int i = 0; i < random.Next(1, 10); i++)
+                b.ControlPointInfo.TimingPoints.Add(new TimingControlPoint { Time = random.Next(0, length) });
+
+            for (int i = 0; i < random.Next(1, 5); i++)
+                b.ControlPointInfo.DifficultyPoints.Add(new DifficultyControlPoint { Time = random.Next(0, length) });
+
+            for (int i = 0; i < random.Next(1, 5); i++)
+                b.ControlPointInfo.EffectPoints.Add(new EffectControlPoint { Time = random.Next(0, length) });
+
+            for (int i = 0; i < random.Next(1, 5); i++)
+                b.ControlPointInfo.SoundPoints.Add(new SoundControlPoint { Time = random.Next(0, length) });
+
+            b.BeatmapInfo.Bookmarks = new int[random.Next(10, 30)];
+            for (int i = 0; i < b.BeatmapInfo.Bookmarks.Length; i++)
+                b.BeatmapInfo.Bookmarks[i] = random.Next(0, length);
+
+            beatmap.Value = new TestWorkingBeatmap(b);
+        }
+
+        private class TestWorkingBeatmap : WorkingBeatmap
+        {
+            private readonly Beatmap beatmap;
+
+            public TestWorkingBeatmap(Beatmap beatmap)
+                : base(beatmap.BeatmapInfo)
+            {
+                this.beatmap = beatmap;
+            }
+
+            protected override Texture GetBackground() => null;
+
+            protected override Beatmap GetBeatmap() => beatmap;
+
+            protected override Track GetTrack() => new TestTrack();
+
+            private class TestTrack : TrackVirtual
+            {
+                public TestTrack()
+                {
+                    Length = length;
+                }
+            }
+        }
+    }
+}