diff --git a/osu.Game.Tests/Visual/Settings/TestSceneSettingsNumberBox.cs b/osu.Game.Tests/Visual/Settings/TestSceneSettingsNumberBox.cs
index ffa1200f32..c063e5526a 100644
--- a/osu.Game.Tests/Visual/Settings/TestSceneSettingsNumberBox.cs
+++ b/osu.Game.Tests/Visual/Settings/TestSceneSettingsNumberBox.cs
@@ -11,15 +11,68 @@ namespace osu.Game.Tests.Visual.Settings
 {
     public class TestSceneSettingsNumberBox : OsuTestScene
     {
+        private SettingsNumberBox numberBox;
+        private OsuTextBox textBox;
+
+        [SetUpSteps]
+        public void SetUpSteps()
+        {
+            AddStep("create number box", () => Child = numberBox = new SettingsNumberBox());
+            AddStep("get inner text box", () => textBox = numberBox.ChildrenOfType<OsuTextBox>().Single());
+        }
+
         [Test]
         public void TestLargeInteger()
         {
-            SettingsNumberBox numberBox = null;
-
-            AddStep("create number box", () => Child = numberBox = new SettingsNumberBox());
-
-            AddStep("set value to 1,000,000,000", () => numberBox.Current.Value = 1_000_000_000);
-            AddAssert("text box text is correct", () => numberBox.ChildrenOfType<OsuTextBox>().Single().Current.Value == "1000000000");
+            AddStep("set current to 1,000,000,000", () => numberBox.Current.Value = 1_000_000_000);
+            AddAssert("text box text is correct", () => textBox.Text == "1000000000");
         }
+
+        [Test]
+        public void TestUserInput()
+        {
+            inputText("42");
+            currentValueIs(42);
+            currentTextIs("42");
+
+            inputText(string.Empty);
+            currentValueIs(null);
+            currentTextIs(string.Empty);
+
+            inputText("555");
+            currentValueIs(555);
+            currentTextIs("555");
+
+            inputText("-4444");
+            // attempting to input the minus will raise an input error, the rest will pass through fine.
+            currentValueIs(4444);
+            currentTextIs("4444");
+
+            // checking the upper bound.
+            inputText(int.MaxValue.ToString());
+            currentValueIs(int.MaxValue);
+            currentTextIs(int.MaxValue.ToString());
+
+            inputText((long)int.MaxValue + 1.ToString());
+            currentValueIs(int.MaxValue);
+            currentTextIs(int.MaxValue.ToString());
+
+            inputText("0");
+            currentValueIs(0);
+            currentTextIs("0");
+
+            // checking that leading zeroes are stripped.
+            inputText("00");
+            currentValueIs(0);
+            currentTextIs("0");
+
+            inputText("01");
+            currentValueIs(1);
+            currentTextIs("1");
+        }
+
+        private void inputText(string text) => AddStep($"set textbox text to {text}", () => textBox.Text = text);
+        private void currentValueIs(int? value) => AddAssert($"current value is {value?.ToString() ?? "null"}", () => numberBox.Current.Value == value);
+        private void currentTextIs(string value) => AddAssert($"current text is {value}", () => textBox.Text == value);
     }
 }