def test_usd_to_cents_valid_non_strings(self):
"""Return an int given a valid non-string type."""
assert USDollar.usd_to_cents(1) == 100
assert USDollar.usd_to_cents(2.99) == 299
assert USDollar.usd_to_cents(3.999) == 399
assert USDollar.usd_to_cents(Decimal('1.99')) == 199
assert USDollar.usd_to_cents(3.14159265) == 314
def test_usd_to_cents_valid_string(self):
"""Return an int given a valid string containing a dollar amount."""
assert USDollar.usd_to_cents('$2.99') == 299
assert USDollar.usd_to_cents('3.00') == 300
assert USDollar.usd_to_cents('2.50$') == 250
assert USDollar.usd_to_cents('$ 1.99') == 199
assert USDollar.usd_to_cents('4.99 $') == 499
assert USDollar.usd_to_cents(' 3.50 ') == 350
assert USDollar.usd_to_cents('4') == 400
assert USDollar.usd_to_cents('5.3') == 530
assert USDollar.usd_to_cents('3.9999') == 399
def test_cents_to_usd_two_decimal_places(self):
"""Always return a Decimal with 2 decimal places."""
assert str(USDollar.cents_to_usd(100)) == '1.00'
assert str(USDollar.cents_to_usd(350)) == '3.50'
assert str(USDollar.cents_to_usd(1000)) == '10.00'
def test_cents_to_usd(self):
"""Return a Decimal USD value given an integer."""
assert USDollar.cents_to_usd(100) == Decimal('1.00')
assert USDollar.cents_to_usd(299) == Decimal('2.99')
assert USDollar.cents_to_usd(350) == Decimal('3.50')
