module MiniTest

def self.const_missing name # :nodoc:
  case name
  when :MINI_DIR then
    msg = "MiniTest::MINI_DIR was removed. Don't violate other's internals."
    warn "WAR\NING: #{msg}"
    warn "WAR\NING: Used by #{caller.first}."
    const_set :MINI_DIR, "bad value"
  else
    super
  end
end

def self.filter_backtrace bt # :nodoc:
  return ["No backtrace"] unless bt
  new_bt = []
  unless $DEBUG then
    bt.each do |line|
      break if line =~ /lib\/minitest/
      new_bt << line
    end
    new_bt = bt.reject { |line| line =~ /lib\/minitest/ } if new_bt.empty?
    new_bt = bt.dup if new_bt.empty?
  else
    new_bt = bt.dup
  end
  new_bt
end