add test scene for OsuMarkdownContainer

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

@@ -0,0 +1,53 @@
+// 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.Graphics.Containers;
+using osu.Framework.Graphics.Shapes;
+using osu.Game.Graphics.Containers.Markdown;
+using osu.Game.Overlays;
+
+namespace osu.Game.Tests.Visual.UserInterface
+{
+    public class TestSceneOsuMarkdownContainer : OsuTestScene
+    {
+        private OsuMarkdownContainer markdownContainer;
+
+        [Cached]
+        private readonly OverlayColourProvider overlayColour = new OverlayColourProvider(OverlayColourScheme.Orange);
+
+        [SetUp]
+        public void Setup() => Schedule(() =>
+        {
+            Children = new Drawable[]
+            {
+                new Box
+                {
+                    Colour = overlayColour.Background5,
+                    RelativeSizeAxes = Axes.Both,
+                },
+                new BasicScrollContainer
+                {
+                    RelativeSizeAxes = Axes.Both,
+                    Padding = new MarginPadding(20),
+                    Child = markdownContainer = new OsuMarkdownContainer
+                    {
+                        RelativeSizeAxes = Axes.X,
+                        AutoSizeAxes = Axes.Y
+                    }
+                }
+            };
+        });
+
+        [Test]
+        public void TestLink()
+        {
+            AddStep("Add Link", () =>
+            {
+                markdownContainer.Text = "[Welcome to osu!](https://osu.ppy.sh)";
+            });
+        }
+    }
+}