class RuboCop::Cop::Rails::UnknownEnv

Rails.env == ‘production’
Rails.env.production?
# good
Rails.env == ‘proudction’
Rails.env.proudction?
# bad
@example
More can be added to the ‘Environments` config parameter.
`development`, `test`, and `production`.
By default the cop allows three environments which Rails ships with:
exist.
This cop checks that environments called with `Rails.env` predicates

def collect_variable_like_names(_scope) 

def collect_variable_like_names(_scope)
  environments
end

def environments 

def environments
  cop_config['Environments']
end

def message(name) 

def message(name)
  name = name.to_s.chomp('?')
  # DidYouMean::SpellChecker is not available in all versions of Ruby,
  # and even on versions where it *is* available (>= 2.3), it is not
  # always required correctly. So we do a feature check first. See:
  # https://github.com/rubocop/rubocop/issues/7979
  similar_names = if defined?(DidYouMean::SpellChecker)
                    spell_checker = DidYouMean::SpellChecker.new(dictionary: environments)
                    spell_checker.correct(name)
                  else
                    []
                  end
  if similar_names.empty?
    format(MSG, name: name)
  else
    format(MSG_SIMILAR, name: name, similar: similar_names.join(', '))
  end
end

def on_send(node) 

def on_send(node)
  unknown_environment_predicate?(node) do |name|
    add_offense(node.loc.selector, message: message(name))
  end
  unknown_environment_equal?(node) do |str_node|
    name = str_node.value
    add_offense(str_node, message: message(name))
  end
end

def unknown_env_name?(name) 

def unknown_env_name?(name)
  !environments.include?(name)
end

def unknown_env_predicate?(name) 

def unknown_env_predicate?(name)
  name = name.to_s
  name.end_with?('?') &&
    !environments.include?(name[0..-2])
end