module RSpec::Rails

def self.disable_testunit_autorun
  # `Test::Unit::AutoRunner.need_auto_run=` was introduced to the test-unit
  # gem in version 2.4.9. Previous to this version `Test::Unit.run=` was
  # used. The implementation of test-unit included with Ruby has neither
  # method.
  if defined?(Test::Unit::AutoRunner.need_auto_run = ())
    Test::Unit::AutoRunner.need_auto_run = false
  elsif defined?(Test::Unit.run = ())
    Test::Unit.run = false
  end
end