module Mocha::Integration::TestUnit

def self.activate
  target = Detection::TestUnit.testcase
  return false unless target
  test_unit_version = Gem::Version.new(Detection::TestUnit.version)
  Debug.puts "Detected Test::Unit version: #{test_unit_version}"
  unless TestUnit::Adapter.applicable_to?(test_unit_version)
    raise 'Versions of test-unit earlier than v2.5.1 are not supported.'
  end
  unless target < TestUnit::Adapter
    Debug.puts "Applying #{TestUnit::Adapter.description}"
    target.send(:include, TestUnit::Adapter)
  end
  true
end