module Rake

def run_tests(pattern='test/test*.rb', log_enabled=false)
  Rake.glob(pattern).each { |fn|
    $stderr.puts fn if log_enabled
    begin
      require fn
    rescue Exception => ex
      $stderr.puts "Error in #{fn}: #{ex.message}"
      $stderr.puts ex.backtrace
      assert false
    end
  }
end