Ruby 3.0 should be enabled, see this to learn how to do it

Please organize the structure of test fixture as following (although it has been mentioned in the attached link, I'm repeated here again)

describe "<This message should describe the categories of test groups inside this block>" do
  it "<A short message describing this test group>" do
    expect(...).to eq(...) #Assertions
    #Or Test.assert_equals(user_response, reference_response)
  end
end

It is possible that a solution could be created that is capable of passing all the sample tests but would fail the kata where the dice include two-pair, such as "44522" which could be mistaken for a full_house. It's a consideration if you want to be replete with all possibilities that you would then include this as a sample test.