diagnostic_check :mysql do |c|
  c.passed { true }
  c.failed { false }

  c.data do |d|
    d['a'] = 'b'
    d[1] = 2

    d << [1,2,3,4,5]
    d << [6,7,6,8,10]

    d << 'a string'

    d << { 'heading 1' => 'a',
           'heading 2' => 'b',
           'heading 3' => nil }
  end
end