Add a Player test scene that uses a legacy skin

osu.Game.Rulesets.Catch.Tests/TestSceneCatchPlayerLegacySkin.cs

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+// 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.Audio;
+using osu.Framework.IO.Stores;
+using osu.Game.Skinning;
+using osu.Game.Tests.Visual;
+
+namespace osu.Game.Rulesets.Catch.Tests
+{
+    [TestFixture]
+    public class TestSceneCatchPlayerLegacySkin : PlayerTestScene
+    {
+        private ISkinSource legacySkinSource;
+
+        protected override TestPlayer CreatePlayer(Ruleset ruleset) => new SkinProvidingPlayer(legacySkinSource);
+
+        [BackgroundDependencyLoader]
+        private void load(AudioManager audio, OsuGameBase game)
+        {
+            var legacySkin = new DefaultLegacySkin(new NamespacedResourceStore<byte[]>(game.Resources, "Skins/Legacy"), audio);
+            legacySkinSource = new SkinProvidingContainer(legacySkin);
+        }
+
+        protected override Ruleset CreatePlayerRuleset() => new CatchRuleset();
+
+        public class SkinProvidingPlayer : TestPlayer
+        {
+            private readonly ISkinSource skinSource;
+
+            public SkinProvidingPlayer(ISkinSource skinSource)
+            {
+                this.skinSource = skinSource;
+            }
+
+            protected override IReadOnlyDependencyContainer CreateChildDependencies(IReadOnlyDependencyContainer parent)
+            {
+                var dependencies = new DependencyContainer(base.CreateChildDependencies(parent));
+                dependencies.CacheAs(skinSource);
+                return dependencies;
+            }
+        }
+    }
+}