From bfca64a98ebcb15e84bd22ff4b10653b3ddb00d2 Mon Sep 17 00:00:00 2001
From: Shiumano <takkunmail2005@gmail.com>
Date: Fri, 14 Jun 2024 20:07:27 +0900
Subject: [PATCH] Add failing test

---
 .../Gameplay/TestSceneBeatmapOffsetControl.cs | 25 +++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/osu.Game.Tests/Visual/Gameplay/TestSceneBeatmapOffsetControl.cs b/osu.Game.Tests/Visual/Gameplay/TestSceneBeatmapOffsetControl.cs
index 83fc5c2013..1de55fce8c 100644
--- a/osu.Game.Tests/Visual/Gameplay/TestSceneBeatmapOffsetControl.cs
+++ b/osu.Game.Tests/Visual/Gameplay/TestSceneBeatmapOffsetControl.cs
@@ -137,5 +137,30 @@ namespace osu.Game.Tests.Visual.Gameplay
             AddStep("Remove reference score", () => offsetControl.ReferenceScore.Value = null);
             AddAssert("No calibration button", () => !offsetControl.ChildrenOfType<SettingsButton>().Any());
         }
+
+        [Test]
+        public void TestCalibrationNoChange()
+        {
+            const double average_error = 0;
+
+            AddAssert("Offset is neutral", () => offsetControl.Current.Value == 0);
+            AddAssert("No calibration button", () => !offsetControl.ChildrenOfType<SettingsButton>().Any());
+            AddStep("Set reference score", () =>
+            {
+                offsetControl.ReferenceScore.Value = new ScoreInfo
+                {
+                    HitEvents = TestSceneHitEventTimingDistributionGraph.CreateDistributedHitEvents(average_error),
+                    BeatmapInfo = Beatmap.Value.BeatmapInfo,
+                };
+            });
+
+            AddUntilStep("Has calibration button", () => offsetControl.ChildrenOfType<SettingsButton>().Any());
+            AddStep("Press button", () => offsetControl.ChildrenOfType<SettingsButton>().Single().TriggerClick());
+            AddAssert("Offset is adjusted", () => offsetControl.Current.Value == -average_error);
+
+            AddUntilStep("Button is disabled", () => !offsetControl.ChildrenOfType<SettingsButton>().Single().Enabled.Value);
+            AddStep("Remove reference score", () => offsetControl.ReferenceScore.Value = null);
+            AddAssert("No calibration button", () => !offsetControl.ChildrenOfType<SettingsButton>().Any());
+        }
     }
 }