Use generator

Author: ErikSchierboom

exercises/practice/split-second-stopwatch/.meta/Generator.tpl

@@ -1,12 +1,49 @@
-using Xunit;
+{{ func to_timespan
+    if $0 == "00:00:00"
+        ret "TimeSpan.Zero"
+    end
+
+    parts = string.split $0 ":"
+    hours = parts[0] | string.to_int
+    minutes = parts[1] | string.to_int
+    seconds = parts[2] | string.to_int        
+    $"new TimeSpan({hours},{minutes},{seconds})"
+end }}
+
+using Microsoft.Extensions.Time.Testing;
 
 public class {{ testClass }}
 {
     {{- for test in tests }}
     [Fact{{ if !for.first }}(Skip = "Remove this Skip property to run this test"){{ end }}]
     public void {{ test.testMethod }}()
     {
-        Assert.Equal({{ test.expected }}, {{ testedClass }}.{{ test.testedMethod }}({{ test.input.commands }}));
+        {{- for command in test.input.commands }}
+        {{- if command.command == "new" }}
+        var timeProvider = new FakeTimeProvider();
+        var stopwatch = new {{ testedClass }}(timeProvider);
+        {{- else if command.command == "state" }}
+        Assert.Equal({{ command.expected | enum "StopwatchState" }}, stopwatch.State);
+        {{- else if command.command == "currentLap" }}
+        Assert.Equal({{ command.expected | to_timespan }}, stopwatch.CurrentLap);
+        {{- else if command.command == "total" }}
+        Assert.Equal({{ command.expected | to_timespan }}, stopwatch.Total);
+        {{- else if command.command == "previousLaps" }}
+        {{- if command.expected.empty? }}
+        Assert.Empty(stopwatch.PreviousLaps);
+        {{ else }}
+        Assert.Equal([{{- for previousLap in command.expected }}{{ previousLap | to_timespan }}{{ if !for.last }}, {{ end }}{{ end -}}], stopwatch.PreviousLaps);
+        {{ end -}}
+        {{- else if command.command == "advanceTime" }}
+        timeProvider.Advance({{ command.by | to_timespan }});
+        {{- else }}
+        {{- if command.expected && command.expected.error }}
+        Assert.Throws<InvalidOperationException>(() => stopwatch.{{ command.command | pascalize }}());
+        {{ else }}
+        stopwatch.{{ command.command | pascalize }}();
+        {{ end -}}
+        {{ end -}}
+        {{ end -}}
     }
     {{ end -}}
 }

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

@@ -1,7 +1,8 @@
 public enum StopwatchState
 {
     Ready,
-    Running
+    Running,
+    Stopped
 }
 
 public class SplitSecondStopwatch(TimeProvider time)