Add test scene covering taiko swell

osu.Game.Rulesets.Taiko.Tests/Skinning/TestSceneDrawableSwell.cs

@@ -0,0 +1,39 @@
+// 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 NUnit.Framework;
+using osu.Framework.Graphics;
+using osu.Game.Beatmaps;
+using osu.Game.Beatmaps.ControlPoints;
+using osu.Game.Rulesets.Taiko.Objects;
+using osu.Game.Rulesets.Taiko.Objects.Drawables;
+
+namespace osu.Game.Rulesets.Taiko.Tests.Skinning
+{
+    [TestFixture]
+    public class TestSceneDrawableSwell : TaikoSkinnableTestScene
+    {
+        [Test]
+        public void TestHits()
+        {
+            AddStep("Centre hit", () => SetContents(_ => new DrawableSwell(createHitAtCurrentTime())
+            {
+                Anchor = Anchor.Centre,
+                Origin = Anchor.Centre,
+            }));
+        }
+
+        private Swell createHitAtCurrentTime()
+        {
+            var hit = new Swell
+            {
+                StartTime = Time.Current + 3000,
+                EndTime = Time.Current + 6000,
+            };
+
+            hit.ApplyDefaults(new ControlPointInfo(), new BeatmapDifficulty());
+
+            return hit;
+        }
+    }
+}