Incorrect recommendation suggested by Performance/ChainArrayAllocation Cop

[ashmaroli]

Expected behavior

Expected RuboCop to suggest valid corrections.

Actual behavior

C: Performance/ChainArrayAllocation: Use unchained values_at! and compact! (followed by return array if required)
instead of chaining values_at...compact.

options.values_at("alpha", "beta", "gamma").compact.length > 1
                                           ^^^^^^^^

Problem

Hash instances do not respond to :values_at!

Steps to reproduce the problem

Run RuboCop against the following code:

def foo?(options = {})
  options.values_at("alpha", "beta", "gamma").compact.length > 1
end

[ashmaroli]

Thanks for resolving this issue @fatkodima.
I have not manually tested the patch but will in a couple of days if a new version doesn't get shipped by then.