Add grouping of visual tests

osu.Game.Tests/Visual/Editor/TestCaseEditorSummaryTimeline.cs

@@ -0,0 +1,34 @@
+// 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;
+using System.Collections.Generic;
+using NUnit.Framework;
+using osu.Framework.Allocation;
+using osu.Framework.Graphics;
+using osu.Game.Rulesets.Osu;
+using osu.Game.Screens.Edit.Components.Timelines.Summary;
+using osu.Game.Tests.Beatmaps;
+using osuTK;
+
+namespace osu.Game.Tests.Visual.Editor
+{
+    [TestFixture]
+    public class TestCaseEditorSummaryTimeline : EditorClockTestCase
+    {
+        public override IReadOnlyList<Type> RequiredTypes => new[] { typeof(SummaryTimeline) };
+
+        [BackgroundDependencyLoader]
+        private void load()
+        {
+            Beatmap.Value = new TestWorkingBeatmap(new OsuRuleset().RulesetInfo, null);
+
+            Add(new SummaryTimeline
+            {
+                Anchor = Anchor.Centre,
+                Origin = Anchor.Centre,
+                Size = new Vector2(500, 50)
+            });
+        }
+    }
+}