Throw exception if input not found

.drone.yml

@@ -11,6 +11,7 @@ steps:
 - name: test
   image: mcr.microsoft.com/dotnet/sdk:5.0
   commands:
+    - ls
     - dotnet test AOC2021.Test
 
 - name: build-aoc-2021

AOC2021.Test/AOCTester.cs

@@ -19,7 +19,6 @@ namespace AOC2021.Test
             Console.WriteLine($"Testing {request.Day} Part A, Test data");
             if (!string.IsNullOrEmpty(request.Answer.Day_A_Test))
                 response.Answer.Day_A_Test = GetAOCDay(request.Day).ExecuteDay(new AOCRequest() { Input = test, Version = AOCVersion.A }).Answer;
-            Console.WriteLine(response);
             Console.WriteLine(response.Answer.Day_A_Test);
             Console.WriteLine($"Testing {request.Day} Part A, Input data");
             if (!string.IsNullOrEmpty(request.Answer.Day_A_Input))
@@ -57,16 +56,18 @@ namespace AOC2021.Test
 
         private string GetTextInput(string day, string type)
         {
+            var constructedFileName = $"Input\\{day}_{type}.txt";
+            Console.WriteLine("ConstructedFileName: " + constructedFileName);
+            Console.WriteLine("Input File Size: " + Directory.GetFiles("Input").Length);
             foreach (var file in Directory.GetFiles("Input"))
             {
-                var constructedFileName = $"Input\\{day}_{type}.txt";
                 if (file.ToLower().Equals(constructedFileName.ToLower()))
                 {
                     Console.WriteLine("Loading " + file);
                     return File.ReadAllText(file);
                 }
             }
-            return null;
+            throw new Exception($"No Text Input found for {day} {type}");
         }
     }
 }