public void FormatSpecialCharacters_StringWasCorrectlyFormattedToStringWithoutSpecialCharacters()
{
ArrayFormat arrayFormat = new ArrayFormat();
string fileName = System.IO.Directory.GetCurrentDirectory().Replace(@"ExerciseOrderBy.Tests\bin\Debug", @"\ExerciseOrderBy\input.txt");
string lowerText = System.IO.File.ReadAllText(fileName).ToLower();
string text = arrayFormat.FormatSpecialCharacters(lowerText);
var regexItem = new Regex("^[a-zA-Z0-9 ]*$");
Assert.IsTrue(regexItem.IsMatch(text), "Formatted message contains at least one special character");
}
