Add test scene

osu.Game.Tests/Visual/UserInterface/TestSceneModsEffectDisplay.cs

@@ -0,0 +1,60 @@
+// 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.Allocation;
+using osu.Framework.Graphics;
+using osu.Framework.Localisation;
+using osu.Game.Graphics;
+using osu.Game.Graphics.Sprites;
+using osu.Game.Overlays;
+using osu.Game.Overlays.Mods;
+
+namespace osu.Game.Tests.Visual.UserInterface
+{
+    public class TestSceneModsEffectDisplay : OsuTestScene
+    {
+        [Cached]
+        private OverlayColourProvider colourProvider = new OverlayColourProvider(OverlayColourScheme.Green);
+
+        [Test]
+        public void TestEffectDisplay()
+        {
+            TestDisplay dsp;
+            Add(dsp = new TestDisplay
+            {
+                Anchor = Anchor.Centre,
+                Origin = Anchor.Centre
+            });
+            AddSliderStep("value", 40, 60, 50, i => dsp.Value = i);
+        }
+
+        private class TestDisplay : ModsEffectDisplay
+        {
+            private readonly OsuSpriteText text;
+
+            protected override LocalisableString Label => "Test display";
+
+            public int Value
+            {
+                set
+                {
+                    text.Text = value.ToString();
+                    SetColours(value.CompareTo(50));
+                }
+            }
+
+            public TestDisplay()
+            {
+                Add(text = new OsuSpriteText
+                {
+                    Font = OsuFont.Default.With(size: 17, weight: FontWeight.SemiBold),
+                    Text = "50"
+                });
+            }
+
+            [BackgroundDependencyLoader]
+            private void load() => SetColours(0);
+        }
+    }
+}