Kata

After fixing the issue below, I suggest to make the kata a bit harder, because this way it's very easy (basically just completing a simple function). It's just an interesting concept a little bit "wasted" this way. You could:

• make the user write the whole class from scratch
• define M at initialization
• try to find another "twist"

Oh, and definitely, it needs more tests!

You gave the solution in your example test cases!!! D:

You also might want to specify how exactly we are to normalize the value to be within [0, 1]. Incidentally, your solution will only ever return 1 of 100 unique values: [0.0, 0.01, 0.02, 0.03, ... , 0.98, 0.99] -- not quite how the PRNG should behave. May be better to just divide by M. Of course, you may have done it that way to ease testing, which is fine. But either way, it should be stated clearly in the description.