Move all TestCases to Testing project

This allows tests to successfully retrieve rulesets, as they are referenced.

osu.Game.Tests/Visual/TestCaseUserRanks.cs

@@ -0,0 +1,47 @@
+// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
+// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
+
+using osu.Framework.Graphics;
+using osu.Framework.Graphics.Containers;
+using osu.Framework.Graphics.Shapes;
+using osu.Game.Graphics;
+using osu.Game.Overlays.Profile.Sections;
+using osu.Game.Overlays.Profile.Sections.Ranks;
+using osu.Game.Users;
+using System;
+using System.Collections.Generic;
+
+namespace osu.Game.Tests.Visual
+{
+    internal class TestCaseUserRanks : OsuTestCase
+    {
+        public override string Description => "showing your latest achievements";
+
+        public override IReadOnlyList<Type> RequiredTypes => new[] { typeof(DrawableScore), typeof(RanksSection) };
+
+        public TestCaseUserRanks()
+        {
+            RanksSection ranks;
+
+            Add(new Container
+            {
+                RelativeSizeAxes = Axes.Both,
+                Children = new Drawable[]
+                {
+                    new Box
+                    {
+                        RelativeSizeAxes = Axes.Both,
+                        Colour = OsuColour.Gray(0.2f)
+                    },
+                    new ScrollContainer
+                    {
+                        RelativeSizeAxes = Axes.Both,
+                        Child = ranks = new RanksSection(),
+                    },
+                }
+            });
+
+            AddStep("Show cookiezi", () => ranks.User = new User { Id = 124493 });
+        }
+    }
+}