From dd65f6903362309a5df833714e53b3f68bf3cc93 Mon Sep 17 00:00:00 2001
From: Adam Radocz <adam.radocz@gmail.com>
Date: Sun, 24 Jul 2022 14:33:40 +0200
Subject: [PATCH 1/2] #938 Add default Run and Test mode.

---
 src/Splat.Tests/ModeDetection/ModeTests.cs | 43 ++++++++++++++++++++++
 src/Splat/ModeDetection/Mode.cs            | 30 +++++++++++++++
 2 files changed, 73 insertions(+)
 create mode 100644 src/Splat.Tests/ModeDetection/ModeTests.cs
 create mode 100644 src/Splat/ModeDetection/Mode.cs

diff --git a/src/Splat.Tests/ModeDetection/ModeTests.cs b/src/Splat.Tests/ModeDetection/ModeTests.cs
new file mode 100644
index 000000000..34b611176
--- /dev/null
+++ b/src/Splat.Tests/ModeDetection/ModeTests.cs
@@ -0,0 +1,43 @@
+using Splat.ModeDetection;
+using Xunit;
+
+namespace Splat.Tests.ModeDetection
+{
+    /// <summary>
+    /// Unit tests for the <see cref="Mode"/> class.
+    /// </summary>
+    public class ModeTests
+    {
+        /// <summary>
+        /// Tests the <see cref="Mode.Run"/> mode.
+        /// </summary>
+        [Fact]
+        public void RunModeTest()
+        {
+            // Arrange
+            ModeDetector.OverrideModeDetector(Mode.Run);
+
+            // Act
+            var inUnitTestRunner = ModeDetector.InUnitTestRunner();
+
+            // Assert
+            Assert.False(inUnitTestRunner);
+        }
+
+        /// <summary>
+        /// Tests the <see cref="Mode.Test"/> mode.
+        /// </summary>
+        [Fact]
+        public void TestModeTest()
+        {
+            // Arrange
+            ModeDetector.OverrideModeDetector(Mode.Test);
+
+            // Act
+            var inUnitTestRunner = ModeDetector.InUnitTestRunner();
+
+            // Assert
+            Assert.True(inUnitTestRunner);
+        }
+    }
+}
diff --git a/src/Splat/ModeDetection/Mode.cs b/src/Splat/ModeDetection/Mode.cs
new file mode 100644
index 000000000..47c462357
--- /dev/null
+++ b/src/Splat/ModeDetection/Mode.cs
@@ -0,0 +1,30 @@
+// Copyright (c) 2021 .NET Foundation and Contributors. All rights reserved.
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for full license information.
+
+namespace Splat.ModeDetection
+{
+    /// <summary>
+    /// The default implementation of the <see cref="Run"/> and <see cref="Test"/> mode.
+    /// </summary>
+    public sealed class Mode : IModeDetector
+    {
+        /// <summary>
+        /// The default implementation of the run mode.
+        /// </summary>
+        public static readonly Mode Run = new(false);
+
+        /// <summary>
+        /// The default implementation of the test mode.
+        /// </summary>
+        public static readonly Mode Test = new(true);
+
+        private readonly bool _inUnitTestRunner;
+
+        private Mode(bool inUnitTestRunner) => _inUnitTestRunner = inUnitTestRunner;
+
+        /// <inheritdoc/>
+        public bool? InUnitTestRunner() => _inUnitTestRunner;
+    }
+}

From 6e2fc1a00e7fc0c7ba10be1b45cda3aa20bb9747 Mon Sep 17 00:00:00 2001
From: Chris Pulman <chris.pulman@yahoo.com>
Date: Sun, 24 Jul 2022 14:15:45 +0100
Subject: [PATCH 2/2] Update
 ApiApprovalTests.SplatProject.DotNet6_0.verified.txt

---
 .../ApiApprovalTests.SplatProject.DotNet6_0.verified.txt | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/Splat.Tests/API/ApiApprovalTests.SplatProject.DotNet6_0.verified.txt b/src/Splat.Tests/API/ApiApprovalTests.SplatProject.DotNet6_0.verified.txt
index 72858adf4..45d64972d 100644
--- a/src/Splat.Tests/API/ApiApprovalTests.SplatProject.DotNet6_0.verified.txt
+++ b/src/Splat.Tests/API/ApiApprovalTests.SplatProject.DotNet6_0.verified.txt
@@ -772,4 +772,13 @@ namespace Splat.ApplicationPerformanceMonitoring
     {
         void OnViewNavigation(string name);
     }
+}
+namespace Splat.ModeDetection
+{
+    public sealed class Mode : Splat.IModeDetector
+    {
+        public static readonly Splat.ModeDetection.Mode Run;
+        public static readonly Splat.ModeDetection.Mode Test;
+        public bool? InUnitTestRunner() { }
+    }
 }
\ No newline at end of file