Add failing test scene

osu.Game.Tests/Visual/Editing/TestSceneEditorSeeking.cs

@@ -0,0 +1,79 @@
+// 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.Utils;
+using osu.Game.Beatmaps;
+using osu.Game.Beatmaps.ControlPoints;
+using osu.Game.Rulesets;
+using osu.Game.Rulesets.Osu;
+using osuTK.Input;
+
+namespace osu.Game.Tests.Visual.Editing
+{
+    public class TestSceneEditorSeeking : EditorTestScene
+    {
+        protected override Ruleset CreateEditorRuleset() => new OsuRuleset();
+
+        protected override IBeatmap CreateBeatmap(RulesetInfo ruleset)
+        {
+            var beatmap = base.CreateBeatmap(ruleset);
+
+            beatmap.BeatmapInfo.BeatDivisor = 1;
+
+            beatmap.ControlPointInfo = new ControlPointInfo();
+            beatmap.ControlPointInfo.Add(0, new TimingControlPoint { BeatLength = 1000 });
+            beatmap.ControlPointInfo.Add(2000, new TimingControlPoint { BeatLength = 500 });
+
+            return beatmap;
+        }
+
+        [Test]
+        public void TestSnappedSeeking()
+        {
+            AddStep("seek to 0", () => EditorClock.Seek(0));
+            AddAssert("time is 0", () => EditorClock.CurrentTime == 0);
+
+            pressAndCheckTime(Key.Right, 1000);
+            pressAndCheckTime(Key.Right, 2000);
+            pressAndCheckTime(Key.Right, 2500);
+            pressAndCheckTime(Key.Right, 3000);
+
+            pressAndCheckTime(Key.Left, 2500);
+            pressAndCheckTime(Key.Left, 2000);
+            pressAndCheckTime(Key.Left, 1000);
+        }
+
+        [Test]
+        public void TestSnappedSeekingAfterControlPointChange()
+        {
+            AddStep("seek to 0", () => EditorClock.Seek(0));
+            AddAssert("time is 0", () => EditorClock.CurrentTime == 0);
+
+            pressAndCheckTime(Key.Right, 1000);
+            pressAndCheckTime(Key.Right, 2000);
+            pressAndCheckTime(Key.Right, 2500);
+            pressAndCheckTime(Key.Right, 3000);
+
+            AddStep("remove 2nd timing point", () =>
+            {
+                EditorBeatmap.BeginChange();
+                var group = EditorBeatmap.ControlPointInfo.GroupAt(2000);
+                EditorBeatmap.ControlPointInfo.RemoveGroup(group);
+                EditorBeatmap.EndChange();
+            });
+
+            pressAndCheckTime(Key.Left, 2000);
+            pressAndCheckTime(Key.Left, 1000);
+
+            pressAndCheckTime(Key.Right, 2000);
+            pressAndCheckTime(Key.Right, 3000);
+        }
+
+        private void pressAndCheckTime(Key key, double expectedTime)
+        {
+            AddStep($"press {key}", () => InputManager.Key(key));
+            AddUntilStep($"time is {expectedTime}", () => Precision.AlmostEquals(expectedTime, EditorClock.CurrentTime, 1));
+        }
+    }
+}