diff --git a/Chapter-3-microservice-extraction/Fitnet/Src/Fitnet/Program.cs b/Chapter-3-microservice-extraction/Fitnet/Src/Fitnet/Program.cs
index 64bfc124..2ac1a9c1 100644
--- a/Chapter-3-microservice-extraction/Fitnet/Src/Fitnet/Program.cs
+++ b/Chapter-3-microservice-extraction/Fitnet/Src/Fitnet/Program.cs
@@ -44,7 +44,5 @@
 namespace EvolutionaryArchitecture.Fitnet
 {
     [UsedImplicitly]
-    public sealed class Program
-    {
-    }
+    public sealed class Program;
 }
diff --git a/Chapter-3-microservice-extraction/Fitnet/Src/Reports/Tests/Fitnet.Reports.IntegrationTests/GenerateNewPassesPerMonthReport/TestData/ReportTestCases.cs b/Chapter-3-microservice-extraction/Fitnet/Src/Reports/Tests/Fitnet.Reports.IntegrationTests/GenerateNewPassesPerMonthReport/TestData/ReportTestCases.cs
index 2d7547be..6246dbb2 100644
--- a/Chapter-3-microservice-extraction/Fitnet/Src/Reports/Tests/Fitnet.Reports.IntegrationTests/GenerateNewPassesPerMonthReport/TestData/ReportTestCases.cs
+++ b/Chapter-3-microservice-extraction/Fitnet/Src/Reports/Tests/Fitnet.Reports.IntegrationTests/GenerateNewPassesPerMonthReport/TestData/ReportTestCases.cs
@@ -1,31 +1,27 @@
 namespace EvolutionaryArchitecture.Fitnet.Reports.IntegrationTests.GenerateNewPassesPerMonthReport.TestData;
 
-internal sealed class ReportTestCases : IEnumerable<object[]>
+internal sealed class ReportTestCases : TheoryData<List<PassRegistrationDateRange>>
 {
     internal static DateTimeOffset FakeNowDate = new(2021, 1, 1, 0, 0, 0, TimeSpan.Zero);
 
-    public IEnumerator<object[]> GetEnumerator()
+    public ReportTestCases()
     {
-        yield return new object[]
+        var passRegistrationDateRanges = new List<PassRegistrationDateRange>
         {
-            new List<PassRegistrationDateRange>
-            {
-                new(new DateTimeOffset(FakeNowDate.Year, 1, 3, 1, 1,1, TimeSpan.Zero), new DateTimeOffset(FakeNowDate.Year, 1, 10 ,1, 1, 1,1, TimeSpan.Zero)),
-                new(new DateTimeOffset(FakeNowDate.Year, 1, 5, 1, 1,1, TimeSpan.Zero), new DateTimeOffset(FakeNowDate.Year, 1, 20 ,1, 1, 1,1, TimeSpan.Zero)),
-                new(new DateTimeOffset(FakeNowDate.Year, 2, 1, 1, 1,1, TimeSpan.Zero), new DateTimeOffset(FakeNowDate.Year, 2, 28 ,1, 1, 1,1, TimeSpan.Zero)),
-                new(new DateTimeOffset(FakeNowDate.Year, 3, 1, 1, 1,1, TimeSpan.Zero), new DateTimeOffset(FakeNowDate.Year, 3, 31 ,1, 1, 1,1, TimeSpan.Zero)),
-                new(new DateTimeOffset(FakeNowDate.Year, 4, 1, 1, 1,1, TimeSpan.Zero), new DateTimeOffset(FakeNowDate.Year, 4, 30 ,1, 1, 1,1, TimeSpan.Zero)),
-                new(new DateTimeOffset(FakeNowDate.Year, 5, 1, 1, 1,1, TimeSpan.Zero), new DateTimeOffset(FakeNowDate.Year, 5, 31 ,1, 1, 1,1, TimeSpan.Zero)),
-                new(new DateTimeOffset(FakeNowDate.Year, 6, 1, 1, 1,1, TimeSpan.Zero), new DateTimeOffset(FakeNowDate.Year, 6, 30 ,1, 1, 1,1, TimeSpan.Zero)),
-                new(new DateTimeOffset(FakeNowDate.Year, 7, 1, 1, 1,1, TimeSpan.Zero), new DateTimeOffset(FakeNowDate.Year, 7, 31 ,1, 1, 1,1, TimeSpan.Zero)),
-                new(new DateTimeOffset(FakeNowDate.Year, 8, 1, 1, 1,1, TimeSpan.Zero), new DateTimeOffset(FakeNowDate.Year, 8, 31 ,1, 1, 1,1, TimeSpan.Zero)),
-                new(new DateTimeOffset(FakeNowDate.Year, 9, 1, 1, 1,1, TimeSpan.Zero), new DateTimeOffset(FakeNowDate.Year, 9, 30 ,1, 1, 1,1, TimeSpan.Zero)),
-                new(new DateTimeOffset(FakeNowDate.Year, 10, 1, 1, 1,1, TimeSpan.Zero), new DateTimeOffset(FakeNowDate.Year, 10, 31 ,1, 1, 1,1, TimeSpan.Zero)),
-                new(new DateTimeOffset(FakeNowDate.Year, 11, 1, 1, 1,1, TimeSpan.Zero), new DateTimeOffset(FakeNowDate.Year, 11, 30 ,1, 1, 1,1, TimeSpan.Zero)),
-                new(new DateTimeOffset(FakeNowDate.Year, 12, 1, 1, 1,1, TimeSpan.Zero), new DateTimeOffset(FakeNowDate.Year, 12, 31 ,1, 1, 1,1, TimeSpan.Zero))
-            }
+            new(new DateTimeOffset(FakeNowDate.Year, 1, 3, 1, 1, 1, TimeSpan.Zero), new DateTimeOffset(FakeNowDate.Year, 1, 10, 1, 1, 1, 1, TimeSpan.Zero)),
+            new(new DateTimeOffset(FakeNowDate.Year, 1, 5, 1, 1, 1, TimeSpan.Zero), new DateTimeOffset(FakeNowDate.Year, 1, 20, 1, 1, 1, 1, TimeSpan.Zero)),
+            new(new DateTimeOffset(FakeNowDate.Year, 2, 1, 1, 1, 1, TimeSpan.Zero), new DateTimeOffset(FakeNowDate.Year, 2, 28, 1, 1, 1, 1, TimeSpan.Zero)),
+            new(new DateTimeOffset(FakeNowDate.Year, 3, 1, 1, 1, 1, TimeSpan.Zero), new DateTimeOffset(FakeNowDate.Year, 3, 31, 1, 1, 1, 1, TimeSpan.Zero)),
+            new(new DateTimeOffset(FakeNowDate.Year, 4, 1, 1, 1, 1, TimeSpan.Zero), new DateTimeOffset(FakeNowDate.Year, 4, 30, 1, 1, 1, 1, TimeSpan.Zero)),
+            new(new DateTimeOffset(FakeNowDate.Year, 5, 1, 1, 1, 1, TimeSpan.Zero), new DateTimeOffset(FakeNowDate.Year, 5, 31, 1, 1, 1, 1, TimeSpan.Zero)),
+            new(new DateTimeOffset(FakeNowDate.Year, 6, 1, 1, 1, 1, TimeSpan.Zero), new DateTimeOffset(FakeNowDate.Year, 6, 30, 1, 1, 1, 1, TimeSpan.Zero)),
+            new(new DateTimeOffset(FakeNowDate.Year, 7, 1, 1, 1, 1, TimeSpan.Zero), new DateTimeOffset(FakeNowDate.Year, 7, 31, 1, 1, 1, 1, TimeSpan.Zero)),
+            new(new DateTimeOffset(FakeNowDate.Year, 8, 1, 1, 1, 1, TimeSpan.Zero), new DateTimeOffset(FakeNowDate.Year, 8, 31, 1, 1, 1, 1, TimeSpan.Zero)),
+            new(new DateTimeOffset(FakeNowDate.Year, 9, 1, 1, 1, 1, TimeSpan.Zero), new DateTimeOffset(FakeNowDate.Year, 9, 30, 1, 1, 1, 1, TimeSpan.Zero)),
+            new(new DateTimeOffset(FakeNowDate.Year, 10, 1, 1, 1, 1, TimeSpan.Zero), new DateTimeOffset(FakeNowDate.Year, 10, 31, 1, 1, 1, 1, TimeSpan.Zero)),
+            new(new DateTimeOffset(FakeNowDate.Year, 11, 1, 1, 1, 1, TimeSpan.Zero), new DateTimeOffset(FakeNowDate.Year, 11, 30, 1, 1, 1, 1, TimeSpan.Zero)),
+            new(new DateTimeOffset(FakeNowDate.Year, 12, 1, 1, 1, 1, TimeSpan.Zero), new DateTimeOffset(FakeNowDate.Year, 12, 31, 1, 1, 1, 1, TimeSpan.Zero))
         };
+        AddRow(passRegistrationDateRanges);
     }
-
-    IEnumerator IEnumerable.GetEnumerator() => GetEnumerator();
-}
\ No newline at end of file
+}