Don’t abort when tests fail; move on the next test task. Silence the default description to cut down on `rake -T` noise.

Methods
D
Instance Public methods
define()

Create the tasks defined by this task lib.

Source: show | on GitHub 

# File railties/lib/rails/test_unit/sub_test_task.rb, line 6
def define
  lib_path = @libs.join(File::PATH_SEPARATOR)
  task @name do
    run_code = ''
    RakeFileUtils.verbose(@verbose) do
      run_code =
        case @loader
        when :direct
          "-e 'ARGV.each{|f| load f}'"
        when :testrb
          "-S testrb #{fix}"
        when :rake
          rake_loader
        end
      @ruby_opts.unshift( "-I\"#{lib_path}\"" )
      @ruby_opts.unshift( "-w" ) if @warning

      begin
        ruby @ruby_opts.join(" ") +
          " \"#{run_code}\" " +
          file_list.collect { |fn| "\"#{fn}\"" }.join(' ') +
          " #{option_list}"
      rescue => error
        warn "Error running #{name}: #{error.inspect}"
      end
    end
  end
  self
end