before_all.rb

require 'minitest/autorun'

class FooTest < Minitest::Test
  def self.before_tests
    puts "BEFORE!!!"
  end

  def self.after_tests
    puts "AFTER!!!"
  end

  (1..10).each { |x| define_method("test_x#{x}") { assert true } }

  def self.run *args
    before_tests
    super
  ensure 
    after_tests
  end
end