Add compose radio buttons + testcase

osu.Game.Tests/Visual/TestCaseEditorComposeRadioButtons.cs

@@ -0,0 +1,34 @@
+// 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.Graphics;
+using osu.Framework.Graphics.UserInterface;
+using osu.Game.Screens.Edit.Screens.Compose.RadioButtons;
+
+namespace osu.Game.Tests.Visual
+{
+    public class TestCaseEditorComposeRadioButtons : OsuTestCase
+    {
+        public override IReadOnlyList<Type> RequiredTypes => new[] { typeof(DrawableRadioButton) };
+
+        public TestCaseEditorComposeRadioButtons()
+        {
+            Add(new RadioButtonCollection
+            {
+                Anchor = Anchor.Centre,
+                Origin = Anchor.Centre,
+                Width = 150,
+                Items = new[]
+                {
+                    new RadioButton { Text = "Item 1", Action = () => { } },
+                    new RadioButton { Text = "Item 2", Action = () => { } },
+                    new RadioButton { Text = "Item 3", Action = () => { } },
+                    new RadioButton { Text = "Item 4", Action = () => { } },
+                    new RadioButton { Text = "Item 5", Action = () => { } }
+                }
+            });
+        }
+    }
+}