def test_ctor(self, ConditionalFormatting):
    cf = ConditionalFormatting(sqref='A1:B5')
    xml = tostring(cf.to_tree())
    expected = '\n        <conditionalFormatting sqref="A1:B5" />\n        '
    diff = compare_xml(xml, expected)
    assert (diff is None), diff
def test_ctor(self, ConditionalFormatting):
    cf = ConditionalFormatting(sqref='A1:B5')
    xml = tostring(cf.to_tree())
    expected = '\n        <conditionalFormatting sqref="A1:B5" />\n        '
    diff = compare_xml(xml, expected)
    assert (diff is None), diff