Rename test cases to test scenes inline with the framework change

osu.Game.Tests/Visual/TestSceneOsuScreenStack.cs

@@ -0,0 +1,82 @@
+// 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.Sprites;
+using osu.Framework.Screens;
+using osu.Framework.Testing;
+using osu.Game.Screens;
+using osu.Game.Screens.Play;
+using osuTK.Graphics;
+
+namespace osu.Game.Tests.Visual
+{
+    [TestFixture]
+    public class TestSceneOsuScreenStack : OsuTestScene
+    {
+        private TestOsuScreenStack stack;
+
+        [SetUpSteps]
+        public void SetUpSteps()
+        {
+            AddStep("Create new screen stack", () => { Child = stack = new TestOsuScreenStack { RelativeSizeAxes = Axes.Both }; });
+        }
+
+        [Test]
+        public void ParallaxAssignmentTest()
+        {
+            NoParallaxTestScreen noParallaxScreen = null;
+            TestScreen parallaxScreen = null;
+
+            AddStep("Push no parallax", () => stack.Push(noParallaxScreen = new NoParallaxTestScreen("NO PARALLAX")));
+            AddUntilStep("Wait for current", () => noParallaxScreen.IsLoaded);
+            AddAssert("Parallax is off", () => stack.ParallaxAmount == 0);
+
+            AddStep("Push parallax", () => noParallaxScreen.Push(parallaxScreen = new TestScreen("PARALLAX")));
+            AddUntilStep("Wait for current", () => parallaxScreen.IsLoaded);
+            AddAssert("Parallax is on", () => stack.ParallaxAmount > 0);
+
+            AddStep("Exit from new screen", () => { noParallaxScreen.MakeCurrent(); });
+            AddAssert("Parallax is off", () => stack.ParallaxAmount == 0);
+        }
+
+        private class TestScreen : ScreenWithBeatmapBackground
+        {
+            private readonly string screenText;
+
+            public TestScreen(string screenText)
+            {
+                this.screenText = screenText;
+            }
+
+            [BackgroundDependencyLoader]
+            private void load()
+            {
+                AddInternal(new SpriteText
+                {
+                    Text = screenText,
+                    Colour = Color4.White,
+                    Anchor = Anchor.Centre,
+                    Origin = Anchor.Centre,
+                });
+            }
+        }
+
+        private class NoParallaxTestScreen : TestScreen
+        {
+            public NoParallaxTestScreen(string screenText)
+                : base(screenText)
+            {
+            }
+
+            public override float BackgroundParallaxAmount => 0.0f;
+        }
+
+        private class TestOsuScreenStack : OsuScreenStack
+        {
+            public new float ParallaxAmount => base.ParallaxAmount;
+        }
+    }
+}