class RuboCop::Cop::Minitest::AssertMatch


assert_match(matcher, string, ‘message’)
assert_match(regex, string)
# good
assert(matcher.match(string), ‘message’)
assert_operator(matcher, :=~, string)
assert(matcher =~ string)
assert(matcher.match?(string))
assert(matcher.match(string))
# bad
@example
instead of using ‘assert(matcher.match(string))`.
Enforces the test to use `assert_match`

def on_send(node)

rubocop:disable Metrics/AbcSize 
def on_send(node)
  assert_match(node) do |expected, actual, rest_args|
    basic_arguments = order_expected_and_actual(expected, actual)
    preferred = (message_arg = rest_args.first) ? "#{basic_arguments}, #{message_arg.source}" : basic_arguments
    message = format(MSG, preferred: preferred)
    add_offense(node, message: message) do |corrector|
      corrector.replace(node.loc.selector, 'assert_match')
      range = if node.method?(:assert)
                node.first_argument
              else
                node.first_argument.source_range.begin.join(node.arguments[2].source_range.end)
              end
      corrector.replace(range, basic_arguments)
    end
  end
end

def order_expected_and_actual(expected, actual) 

def order_expected_and_actual(expected, actual)
  if actual.regexp_type?
    [actual, expected]
  else
    [expected, actual]
  end.map(&:source).join(', ')
end