def format_currency(amount, convert_to_dollars=True):
"""
Pad currency with 2 decimals and commas,
optionally covert cents to dollars.
:param amount: Amount in cents or dollars
:type amount: int or float
:param convert_to_dollars: Convert cents to dollars
:type convert_to_dollars: bool
:return: str
"""
if convert_to_dollars:
amount = cents_to_dollars(amount)
return '{:,.2f}'.format(amount)
def to_json(self):
"""
Return JSON fields to represent a coupon.
:return: dict
"""
params = {
'duration': self.duration,
'duration_in_months': self.duration_in_months,
}
if self.amount_off:
params['amount_off'] = cents_to_dollars(self.amount_off)
if self.percent_off:
params['percent_off'] = self.percent_off,
return params
def test_cents_convert_to_dollars(self):
""" Cents become dollars. """
assert cents_to_dollars(0) == 0.0
assert cents_to_dollars(5) == 0.05
assert cents_to_dollars(-20) == -0.2
assert cents_to_dollars(100) == 1
