'Test the _write_data_validations() method. Data validation example 2 from docs'

def test_write_data_validations_2(self):

    self.worksheet.data_validation('A2', {'validate': 'integer', 'criteria': '>', 'value': '=E3'})
    self.worksheet._write_data_validations()
    exp = '<dataValidations    count="1"><dataValidation    type="whole"    operator="greaterThan"    allowBlank="1"    showInputMessage="1"    showErrorMessage="1"    sqref="A2"><formula1>E3</formula1></dataValidation></dataValidations>'
    got = self.fh.getvalue()
    exp = _xml_to_list(exp)
    got = _xml_to_list(got)
    self.assertEqual(got, exp)
