Add test coverage

osu.Game.Rulesets.Osu.Tests/Mods/TestSceneOsuModAutoplay.cs

@@ -0,0 +1,65 @@
+// 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 System.Linq;
+using NUnit.Framework;
+using osu.Framework.Testing;
+using osu.Framework.Utils;
+using osu.Game.Beatmaps;
+using osu.Game.Rulesets.Mods;
+using osu.Game.Rulesets.Osu.Mods;
+using osu.Game.Rulesets.Osu.Objects;
+using osu.Game.Rulesets.Osu.Skinning.Default;
+using osu.Game.Rulesets.Osu.UI;
+
+namespace osu.Game.Rulesets.Osu.Tests.Mods
+{
+    public class TestSceneOsuModAutoplay : OsuModTestScene
+    {
+        [Test]
+        public void TestSpmUnaffectedByRateAdjust()
+            => runSpmTest(new OsuModDaycore
+            {
+                SpeedChange = { Value = 0.88 }
+            });
+
+        [Test]
+        public void TestSpmUnaffectedByTimeRamp()
+            => runSpmTest(new ModWindUp
+            {
+                InitialRate = { Value = 0.7 },
+                FinalRate = { Value = 1.3 }
+            });
+
+        private void runSpmTest(Mod mod)
+        {
+            SpinnerSpmCounter spmCounter = null;
+
+            CreateModTest(new ModTestData
+            {
+                Autoplay = true,
+                Mod = mod,
+                Beatmap = new Beatmap
+                {
+                    HitObjects =
+                    {
+                        new Spinner
+                        {
+                            Duration = 2000,
+                            Position = OsuPlayfield.BASE_SIZE / 2
+                        }
+                    }
+                },
+                PassCondition = () => Player.ScoreProcessor.JudgedHits >= 1
+            });
+
+            AddUntilStep("fetch SPM counter", () =>
+            {
+                spmCounter = this.ChildrenOfType<SpinnerSpmCounter>().SingleOrDefault();
+                return spmCounter != null;
+            });
+
+            AddUntilStep("SPM is correct", () => Precision.AlmostEquals(spmCounter.SpinsPerMinute, 477, 5));
+        }
+    }
+}