# File lib/generators/templates/application/merb_stack/autotest/merb_rspec.rb, line 123
  def spec_command(separator=File::ALT_SEPARATOR)
    unless defined?(@spec_command)
      @spec_command = spec_commands.find { |cmd| File.exists?(cmd) }

      raise RspecCommandError, "No spec command could be found" unless @spec_command

      @spec_command.gsub!(File::SEPARATOR, separator) if separator
    end
    @spec_command
  end