Rust translation

Unexpectedly light kata as for 6 kyu

Random test generator updated.
Probability of valid values: 79-80%

Interesting...

Interesting...
I have only print(v) in my code (Python) and after running full tests I've got:
Passed: 161 Failed: 51 Exit Code: 1
:D :D :D
So 152 test cases are for "Non-existant values" and only 48 for valid "start point".
Many reruns of testing those tests returns similar proportion for passed and failed tests.
Is it ok? I don't think so.
I can imagine, in rare case, that all random test will have "Non-existant values" and then you need to hardcode 9 cases from
"Fixed Test" and voile, you're done.
I'm marking this comment as sugestion to fix those random test.

very very easy kata for 6 kyu.

Updated python translation

I would argue against doing so as it promotes boolean blindness. Also, nowhere in the domain of the problem does it contain an operation in which two directions are tested for equality.

Although possible to solve without it, it may be best to change the ADT in the Kata from

data Direction = L | R deriving (Show)

to

data Direction = L | R deriving (Show, Eq)

Yeah. Highest scoring word of "" is not "" because empty string is not a word.

At least in the Haskell version, I suggest having (visible, non-solution) test cases that verify the "wrap around" behavior.

I added these to my own tests when working this kata:

	it "should wrap around to the left" $ do
  	  cycleList L [1,2,3] 1 `shouldBe` Just 3
    
	it "should wrap around to the right" $ do
  	  cycleList R [1,2,3] 3 `shouldBe` Just 1

I suggest to make Direction an instance of Eq, it may simplify some code.

What happened to that?