def test_add_one_with_new_until(self):
"""Add a Cultivar with New Until to worksheet.
New Until values should be dates formatted MM/DD/YYYY because 'murica.
"""
dt = datetime.date(2012, 12, 21)
wb = Workbook()
ws = wb.active
cvws = CultivarsWorksheet(ws)
cvws.setup()
cv = Cultivar(name='Foxy')
cv.common_name = CommonName(name='Foxglove')
cv.common_name.index = Index(name='Perennial')
cv.new_until = dt
cvws.add_one(cv)
assert cvws.cell(
2, cvws.cols['New Until']
).value == dt.strftime('%m/%d/%Y')