Is there a reason, why probabilities (in percentages) are rounded down this time?

Python translation:
https://www.codewars.com/kumite/606460f277c714001c091dc5?sel=606460f277c714001c091dc5

The solution should be inside a Describe block.

Tests produce warnings.

The reference solution is incorrect. The correct answer for wheel = "NNNNNNNNNNNWWW" is 56 but the reference solution returns 55. Please add the following fixed tests:

Assert::That(::spinning_wheel("NNNNNNNNNNNWWW"), Equals(56));
Assert::That(::spinning_wheel("NWW"), Equals(75));

and replace the reference solution with a correct one (you may copy my solution).

In general, I recommend to unpublish this kata. Prepare a completely new kata with all issues fixed. Then it will have much higher chances to get out of beta.

Tests are throwing warnings.

Provide more info in assert messages (input, expected and actual)