use ArgumentException instead of a custom exception

Author: Guiorgy

src/CountExceedingBehaviour.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Globalization;
 
 namespace SpanExtensions
 {
@@ -22,12 +23,14 @@ public enum CountExceedingBehaviour
     /// </summary>
     static class CountExceedingBehaviourExtensions
     {
+        static string? CountExceedingBehaviourInvalidFormat;
+
         /// <summary>
         /// Validates whether a specified value is a valid <see cref="CountExceedingBehaviour"/>.
         /// </summary>
         /// <param name="countExceedingBehaviour">The <see cref="CountExceedingBehaviour"/> to validate.</param>
         /// <returns>The specified <see cref="CountExceedingBehaviour"/> if valid.</returns>
-        /// <exception cref="InvalidCountExceedingBehaviourException">If <paramref name="countExceedingBehaviour"/> is not valid.</exception>
+        /// <exception cref="ArgumentException">If <paramref name="countExceedingBehaviour"/> is not valid.</exception>
         public static CountExceedingBehaviour ThrowIfInvalid(this CountExceedingBehaviour countExceedingBehaviour)
         {
 #if NET5_0_OR_GREATER
@@ -36,7 +39,17 @@ public static CountExceedingBehaviour ThrowIfInvalid(this CountExceedingBehaviou
             if(!Enum.IsDefined(typeof(CountExceedingBehaviour), countExceedingBehaviour))
 #endif
             {
-                throw new InvalidCountExceedingBehaviourException(countExceedingBehaviour);
+                if(CountExceedingBehaviourInvalidFormat == null)
+                {
+#if NET5_0_OR_GREATER
+                    string[] names = Enum.GetNames<CountExceedingBehaviour>();
+#else
+                    string[] names = (string[]) Enum.GetNames(typeof(CountExceedingBehaviour));
+#endif
+                    CountExceedingBehaviourInvalidFormat = $"{nameof(CountExceedingBehaviour)} doesn't define an option with the value '{{0}}'. Valid values are {string.Join(", ", names)}.";
+                }
+
+                throw new ArgumentException(string.Format(CultureInfo.InvariantCulture, CountExceedingBehaviourInvalidFormat, (int)countExceedingBehaviour), nameof(countExceedingBehaviour));
             }
 
             return countExceedingBehaviour;