def test_column_rule_span(assert_pixels):
    assert_pixels('''
        ___________
        ___________
        ___________
        ___a_______
        ___a_r_a___
        ___a_r_a___
        ___________
        ___________
        ___________
    ''', '''
      <style>
        img { display: inline-block; width: 1px; height: 1px }
        div { columns: 2; column-rule: 1px solid red; column-gap: 3px }
        article { column-span: all }
        body { margin: 0; font-size: 0 }
        @page { margin: 3px; size: 11px 9px }
      </style>
      <div>
        <article>
          <img src=blue.jpg>
        </article>
        <img src=blue.jpg>
        <img src=blue.jpg>
        <img src=blue.jpg>
        <img src=blue.jpg>
      </div>''')
,
tests/draw/test_column.py