From feabca860bbbdc603fa391c7f9d19822789d26cc Mon Sep 17 00:00:00 2001
From: smoogipoo <smoogipoo@smgi.me>
Date: Fri, 13 Nov 2020 18:35:33 +0900
Subject: [PATCH] Fix sample playback test

---
 .../Visual/Gameplay/TestSceneGameplaySamplePlayback.cs    | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/osu.Game.Tests/Visual/Gameplay/TestSceneGameplaySamplePlayback.cs b/osu.Game.Tests/Visual/Gameplay/TestSceneGameplaySamplePlayback.cs
index b86cb69eb4..7c6a213fe2 100644
--- a/osu.Game.Tests/Visual/Gameplay/TestSceneGameplaySamplePlayback.cs
+++ b/osu.Game.Tests/Visual/Gameplay/TestSceneGameplaySamplePlayback.cs
@@ -23,11 +23,13 @@ public void TestAllSamplesStopDuringSeek()
             DrawableSample[] samples = null;
             ISamplePlaybackDisabler sampleDisabler = null;
 
-            AddStep("get variables", () =>
+            AddUntilStep("get variables", () =>
             {
                 sampleDisabler = Player;
-                slider = Player.ChildrenOfType<DrawableSlider>().OrderBy(s => s.HitObject.StartTime).First();
-                samples = slider.ChildrenOfType<DrawableSample>().ToArray();
+                slider = Player.ChildrenOfType<DrawableSlider>().OrderBy(s => s.HitObject.StartTime).FirstOrDefault();
+                samples = slider?.ChildrenOfType<DrawableSample>().ToArray();
+
+                return slider != null;
             });
 
             AddUntilStep("wait for slider sliding then seek", () =>