None of those cases you mentioned are tested because they aren't valid. Unless some translation has them, please, mention which language you're talking about.

well since you must have a way to determine the start and the end of each word, you usually use the String.Split Method anyway to split on the whitespaces. That method returns an array of strings, so you can access every word seperated. Since every string is a CharArray in c#, you can then access an index of each word. That should solve your problems

Yeah I had a problem with that