module RuboCop::Cop::MinitestExplorationHelpers

def assertion_method?(node)
  return false unless node
  return assertion_method?(node.expression) if node.assignment? && node.respond_to?(:expression)
  return false if !node.send_type? && !node.block_type? && !node.numblock_type?
  ASSERTION_PREFIXES.any? do |prefix|
    method_name = node.method_name
    method_name.start_with?(prefix) || node.method?(:flunk)
  end
end