I have a small suggestion to make the kata's Test and Attempts failed test results a bit more clear.
Instead of printing "Nope!", I would suggest to print a message giving a hint about the method name and the passed arguments of each test.

E.g.:

Let's imagine that the the second test of Test failed.

Current test and failure message:

Test.expect(lt.get_points("Man Utd") == 3, "Nope!")

 Nope! -  Expected: 3, instead got: 0

Suggested test/failure message:

Test.expect(lt.get_points("Man Utd") == 3, "Wrong number of points for Man Utd.")

Wrong number of points for Man Utd. -  Expected: 3, instead got: 0

Thanks for your prompt answer.
I will follow the guidelines and ask a question about this kata, if it still make sense to ask it after my code recheck.

[EDIT] it was definitely my code, sorry for this and thanks again for your support.

The "Attempt" tests don't seem to work from Test.expect(lt.get_points("Liverpool") == 1, "Nope!")
My code seems to work okay for the full test scenario (I called each method manually and checked the result), but I don't pass the above test, frustating :P
Can you recheck your test and correct if necessary?

Above test error message:

Man Utd should now have 1 win, 1 draw and 0 losses.
Nope! -  Expected: 1, instead got: nil

And below my test results for each method:

Test Results:
 Log
3
3
0
0
3
-3
4
4
1  #=> this is the result of the methid call that return "nil" according the above error message, as you can see, it definitely returns 1!
1
4
-3

It looks like the random test expected results are not sorted in ascending order of values in the Ruby version.
Here is a test log I got:

Random Tests
  Expected: [[25, 27], [626, 628], [271, 273], [359, 361]], instead got: [[25, 27], [271, 273], [359, 361], [626, 628]]
  Expected: [[229, 231], [891, 893], [827, 829], [57, 59], [329, 331], [854, 856], [227, 229], [893, 895], [802, 804], [510, 512]], instead got: [[57, 59], [227, 229], [229, 231], [329, 331], [510, 512], [802, 804], [827, 829], [854, 856], [891, 893], [893, 895]] 

Can we correct them?