diff --git a/TestCentre/InputGeneration.fs b/TestCentre/InputGeneration.fs
index 9ff63bf..68ac7e1 100644
--- a/TestCentre/InputGeneration.fs
+++ b/TestCentre/InputGeneration.fs
@@ -10,7 +10,7 @@
 
     let ValidSentencesInput () = System.Random().Next(2, 10)
 
-    let InvalidGibberishInput () =
+    let InvalidGibberishLevelInput () =
         let testInputs = Array.concat [ [|0; 1|] ; [|21 .. 100|] ]
         let index = System.Random().Next(0, testInputs.Length)
         testInputs.[index]
diff --git a/WetPancake/ProductServices.fs b/WetPancake/ProductServices.fs
index 7eb0118..1fc4779 100644
--- a/WetPancake/ProductServices.fs
+++ b/WetPancake/ProductServices.fs
@@ -21,7 +21,6 @@ module  Pancake =
             return GenerateMarkovText (PickRandomNumber 2 10) data
         }
 
-    // TODO: Write tests for the validation checks (throws exceptions)
     let RequestTextAsync (gibberishLevel: int) (sentences: int) =
         async {
             try
@@ -38,7 +37,6 @@ module  Pancake =
                 return ex.Message
         }
 
-    // TODO: Write tests for the validation checks (throws exceptions)
     let RequestTextFromFileAsync (gibberishLevel: int) (sentences: int) (filePath: string) =
         async {
             try
diff --git a/WetPancake/Script.fsx b/WetPancake/Script.fsx
index cc698cf..759b0d4 100644
--- a/WetPancake/Script.fsx
+++ b/WetPancake/Script.fsx
@@ -16,6 +16,7 @@ open DataProcessing
 open DataStructuring
 open DataServices
 open WetPancake
+open System
 
 // System Services
 let ss_number = PickRandomNumber 10
@@ -79,6 +80,15 @@ let dp_combine4 =
     let prev = "Next is null"
     let next = null
     CombineWords prev next
+let dp_invalidGibberish =
+    try
+        GibberishLevelIsValid 0
+        |> ignore
+        "No exception thrown"
+    with :? ArgumentException as ex -> ex.Message
+
+
+
 
 (* Functions to include:
    =====================