Add last-lap exercise

Author: ErikSchierboom

exercises/practice/split-second-stopwatch/SplitSecondStopwatch.cs

@@ -6,7 +6,27 @@ public enum StopwatchState
     Stopped
 }
 
-public class SplitSecondStopwatch
+public class SplitSecondStopwatch(TimeProvider time)
 {
     public StopwatchState State { get; private set; }
+
+    public void Start()
+    {
+        throw new NotImplementedException();
+    }
+
+    public void Stop()
+    {
+        throw new NotImplementedException();
+    }
+
+    public void Split()
+    {
+        throw new NotImplementedException();
+    }
+
+    public void Pause()
+    {
+        throw new NotImplementedException();
+    }
 }

exercises/practice/split-second-stopwatch/SplitSecondStopwatch.csproj

@@ -9,6 +9,7 @@
     <Using Include="Xunit" />
   </ItemGroup>
   <ItemGroup>
+    <PackageReference Include="Microsoft.Extensions.TimeProvider.Testing" Version="9.2.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.12.0" />
     <PackageReference Include="xunit.v3" Version="1.1.0" />
     <PackageReference Include="xunit.runner.visualstudio" Version="3.0.2" />

exercises/practice/split-second-stopwatch/SplitSecondStopwatchTests.cs

@@ -1,24 +1,26 @@
+using Microsoft.Extensions.Time.Testing;
+
 public class SplitSecondStopwatchTests
 {
     [Fact]
     public void InitalStateIsReady()       
     {
-        var stopwatch = new SplitSecondStopwatch();
+        var stopwatch = new SplitSecondStopwatch(new FakeTimeProvider());
         Assert.Equal(StopwatchState.Ready, stopwatch.State);
     }
 
     [Fact]
     public void StartChangesStateToRunning()       
     {
-        var stopwatch = new SplitSecondStopwatch();
+        var stopwatch = new SplitSecondStopwatch(new FakeTimeProvider());
         stopwatch.Start();
         Assert.Equal(StopwatchState.Running, stopwatch.State);
     }
 
     [Fact]
     public void PauseChangesStateToPaused()       
     {
-        var stopwatch = new SplitSecondStopwatch();
+        var stopwatch = new SplitSecondStopwatch(new FakeTimeProvider());
         stopwatch.Start();
         stopwatch.Pause();
         Assert.Equal(StopwatchState.Paused, stopwatch.State);
@@ -27,7 +29,7 @@ public void PauseChangesStateToPaused()
     [Fact]
     public void SplitKeepsStateAsRunning()
     {
-        var stopwatch = new SplitSecondStopwatch();
+        var stopwatch = new SplitSecondStopwatch(new FakeTimeProvider());
         stopwatch.Start();
         stopwatch.Split();
         Assert.Equal(StopwatchState.Running, stopwatch.State);
@@ -36,7 +38,16 @@ public void SplitKeepsStateAsRunning()
     [Fact]
     public void StopChangesStateToStop()       
     {
-        var stopwatch = new SplitSecondStopwatch();
+        var stopwatch = new SplitSecondStopwatch(new FakeTimeProvider());
+        stopwatch.Start();
+        stopwatch.Stop();
+        Assert.Equal(StopwatchState.Stopped, stopwatch.State);
+    }
+
+    [Fact]
+    public void StopAddsLapTime()       
+    {
+        var stopwatch = new SplitSecondStopwatch(new FakeTimeProvider());
         stopwatch.Start();
         stopwatch.Stop();
         Assert.Equal(StopwatchState.Stopped, stopwatch.State);