From 8bf679db8be69f18ac06aba4972a14bcf5e8f513 Mon Sep 17 00:00:00 2001
From: smoogipoo <smoogipoo@smgi.me>
Date: Wed, 2 Sep 2020 13:17:17 +0900
Subject: [PATCH 1/2] Fix nullref in date text box

---
 osu.Game.Tournament/Components/DateTextBox.cs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/osu.Game.Tournament/Components/DateTextBox.cs b/osu.Game.Tournament/Components/DateTextBox.cs
index ee7e350970..aee5241e35 100644
--- a/osu.Game.Tournament/Components/DateTextBox.cs
+++ b/osu.Game.Tournament/Components/DateTextBox.cs
@@ -22,11 +22,12 @@ namespace osu.Game.Tournament.Components
         }
 
         // hold a reference to the provided bindable so we don't have to in every settings section.
-        private Bindable<DateTimeOffset> bindable;
+        private Bindable<DateTimeOffset> bindable = new Bindable<DateTimeOffset>();
 
         public DateTextBox()
         {
             base.Bindable = new Bindable<string>();
+
             ((OsuTextBox)Control).OnCommit = (sender, newText) =>
             {
                 try

From 8f90cc182099075a3651d22d1c31b9303aabd6ed Mon Sep 17 00:00:00 2001
From: smoogipoo <smoogipoo@smgi.me>
Date: Wed, 2 Sep 2020 13:21:51 +0900
Subject: [PATCH 2/2] Add test

---
 .../Components/TestSceneDateTextBox.cs        | 41 +++++++++++++++++++
 1 file changed, 41 insertions(+)
 create mode 100644 osu.Game.Tournament.Tests/Components/TestSceneDateTextBox.cs

diff --git a/osu.Game.Tournament.Tests/Components/TestSceneDateTextBox.cs b/osu.Game.Tournament.Tests/Components/TestSceneDateTextBox.cs
new file mode 100644
index 0000000000..33165d385a
--- /dev/null
+++ b/osu.Game.Tournament.Tests/Components/TestSceneDateTextBox.cs
@@ -0,0 +1,41 @@
+// 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.Game.Tests.Visual;
+using osu.Game.Tournament.Components;
+using osuTK;
+using osuTK.Input;
+
+namespace osu.Game.Tournament.Tests.Components
+{
+    public class TestSceneDateTextBox : OsuManualInputManagerTestScene
+    {
+        private DateTextBox textBox;
+
+        [SetUp]
+        public void Setup() => Schedule(() =>
+        {
+            Child = textBox = new DateTextBox
+            {
+                Width = 0.3f
+            };
+        });
+
+        [Test]
+        public void TestCommitWithoutSettingBindable()
+        {
+            AddStep("click textbox", () =>
+            {
+                InputManager.MoveMouseTo(textBox);
+                InputManager.Click(MouseButton.Left);
+            });
+
+            AddStep("unfocus", () =>
+            {
+                InputManager.MoveMouseTo(Vector2.Zero);
+                InputManager.Click(MouseButton.Left);
+            });
+        }
+    }
+}