def test_to_float() -> None:
## Vanilla:
with pytest.raises(TypeError):
Money.NA.as_float()
assert Money.of(usd, half, today).as_float() == 0.5
assert type(Money.of(usd, half, today).as_float()) == float
## With overload:
with pytest.raises(TypeError):
float(Money.NA)
assert float(Money.of(usd, half, today)) == 0.5
assert type(float(Money.of(usd, half, today))) == float
def test_to_integer() -> None:
## Vanilla:
with pytest.raises(TypeError):
int(Money.NA)
assert int(Money.of(usd, half, today)) == 0
assert type(int(Money.of(usd, half, today))) == int
## With overload:
with pytest.raises(TypeError):
Money.NA.as_integer()
assert Money.of(usd, half, today).as_integer() == 0
assert type(Money.of(usd, half, today).as_integer()) == int
def test_implementation() -> None:
## Define instances:
_money = Money() # type: ignore
smoney = SomeMoney(usd, one, today)
nmoney = NoneMoney()
## Check structure:
assert _money.__slots__ == ()
assert smoney.__slots__ == ()
assert nmoney.__slots__ == ()
assert not hasattr(_money, "__dict__")
assert not hasattr(smoney, "__dict__")
assert not hasattr(nmoney, "__dict__")
## Check types
assert isinstance(Money.NA, Money)
assert isinstance(Money.NA, NoneMoney)
assert not isinstance(Money.NA, SomeMoney)
assert not isinstance(Money.NA, Price)
assert isinstance(_money, Money)
assert not isinstance(_money, SomeMoney)
assert not isinstance(_money, NoneMoney)
assert isinstance(smoney, Money)
assert isinstance(smoney, SomeMoney)
assert not isinstance(smoney, NoneMoney)
assert isinstance(nmoney, Money)
assert not isinstance(nmoney, SomeMoney)
assert isinstance(nmoney, NoneMoney)
def test_of() -> None:
assert Money.of(usd, one, None) == Money.NA
assert Money.of(usd, None, today) == Money.NA
assert Money.of(usd, one, None) == Money.NA
assert Money.of(usd, one, today) == SomeMoney(usd, one, today)
assert Money.of(usd, Decimal("0.055"),
today) == Money.of(usd, Decimal("0.06"), today)
assert Money.of(usd, Decimal("0.045"),
today) == Money.of(usd, Decimal("0.04"), today)
def test_with() -> None:
## First use `Money.NA`s:
assert Money.NA.with_ccy(usd) == Money.NA
assert Money.NA.with_qty(one) == Money.NA
assert Money.NA.with_dov(today) == Money.NA
## Now with some:
assert Money.of(usd, zero,
today).with_ccy(eur) == Money.of(eur, zero, today)
assert Money.of(usd, zero,
today).with_qty(one) == Money.of(usd, one, today)
assert Money.of(usd, zero, today).with_dov(yesterday) == Money.of(
usd, zero, yesterday)
## Extras:
assert Money.of(usd, zero, today).with_qty(Decimal("0.005")) == Money.of(
usd, zero, today)
assert Money.of(usd, zero, today).with_qty(Decimal("0.054")) == Money.of(
usd, Decimal("0.05"), today)
def test_monetary_multiplication() -> None:
## First use `Price.NA`s:
assert Price.NA.times(1) == Money.NA
## Vanilla multiplication:
assert Price.of(usd, one, today).times(1) == Money.of(usd, one, today)
assert Price.of(usd, one, today).times(2) == Money.of(usd, two, today)
assert Price.of(usd, -one, today).times(1) == Money.of(usd, -one, today)
assert Price.of(usd, -one, today).times(2) == Money.of(usd, -two, today)
## Other types:
assert Price.of(usd, one, today).times(1) == Money.of(usd, one, today)
assert Price.of(usd, one, today).times(1.0) == Money.of(usd, one, today)
assert Price.of(usd, one, today).times(one) == Money.of(usd, one, today)
def test_to_boolean() -> None:
## Vanilla:
assert not Money.NA.as_boolean()
assert not Money.of(usd, zero, today).as_boolean()
assert Money.of(usd, half, today).as_boolean()
assert Money.of(usd, -half, today).as_boolean()
## With semantic overload
assert not bool(Money.NA)
assert not Money.of(usd, zero, today)
assert Money.of(usd, half, today)
assert Money.of(usd, -half, today)
def test_is_equal() -> None:
## Vanilla:
assert Money.NA.is_equal(NoMoney)
assert Money.NA.is_equal(NoneMoney())
assert not Money.NA.is_equal(Money.of(usd, zero, today))
assert Money.of(usd, zero, today).is_equal(Money.of(usd, zero, today))
assert Money.of(usd, half, today).is_equal(Money.of(usd, half, today))
assert not Money.of(usd, zero, today).is_equal(Money.of(eur, zero, today))
assert not Money.of(usd, zero, today).is_equal(Money.of(usd, half, today))
assert not Money.of(usd, zero, today).is_equal(
Money.of(usd, zero, yesterday))
## With operator overload:
assert Money.NA == NoneMoney()
assert Money.NA != Money.of(usd, zero, today)
assert Money.of(usd, zero, today) == Money.of(usd, zero, today)
assert Money.of(usd, half, today) == Money.of(usd, half, today)
assert Money.of(usd, zero, today) != Money.of(eur, zero, today)
assert Money.of(usd, zero, today) != Money.of(usd, half, today)
assert Money.of(usd, zero, today) != Money.of(usd, zero, yesterday)
def test_subtraction() -> None:
## First use `Money.NA`s:
assert Money.NA.subtract(Money.NA) == Money.NA
assert Money.NA.subtract(Money.of(usd, zero,
today)) == Money.of(usd, zero, today)
assert Money.of(usd, zero,
today).subtract(Money.NA) == Money.of(usd, zero, today)
## Vanilla subtraction:
assert Money.of(usd, zero, today).subtract(Money.of(usd, zero,
today)) == Money.of(
usd, zero, today)
assert Money.of(usd, zero, today).subtract(Money.of(usd, one,
today)) == Money.of(
usd, -one, today)
assert Money.of(usd, one, today).subtract(Money.of(usd, one,
today)) == Money.of(
usd, zero, today)
assert Money.of(usd, one, today).subtract(Money.of(usd, -one,
today)) == Money.of(
usd, two, today)
## Carry dates forward:
assert Money.of(usd, zero,
today).subtract(Money.of(usd, one, yesterday)) == Money.of(
usd, -one, today)
assert Money.of(usd, zero,
yesterday).subtract(Money.of(usd, one, today)) == Money.of(
usd, -one, today)
## Incompatible currency errors:
with pytest.raises(IncompatibleCurrencyError):
Money.of(usd, zero, today).subtract(Money.of(eur, zero, today))
## Operator overload:
assert Money.of(usd, zero, today) - Money.of(usd, one, today) == Money.of(
usd, -one, today)
assert Money.NA - Money.NA == Money.NA
assert Money.NA - Money.of(usd, zero, today) == Money.of(usd, zero, today)
assert Money.of(usd, zero, today) - Money.NA == Money.of(usd, zero, today)
def test_negative() -> None:
## Vanilla:
assert Money.NA.negative() == Money.NA
assert Money.of(usd, zero, today).negative() == Money.of(usd, zero, today)
assert Money.of(usd, -one, today).negative() == Money.of(usd, +one, today)
assert Money.of(usd, +one, today).negative() == Money.of(usd, -one, today)
## With overload:
assert -Money.NA == Money.NA
assert -Money.of(usd, zero, today) == Money.of(usd, zero, today)
assert -Money.of(usd, -one, today) == Money.of(usd, +one, today)
assert -Money.of(usd, +one, today) == Money.of(usd, -one, today)
def test_abs() -> None:
## Vanilla:
assert Money.NA.abs() == Money.NA
assert Money.of(usd, zero, today).abs() == Money.of(usd, zero, today)
assert Money.of(usd, -one, today).abs() == Money.of(usd, +one, today)
assert Money.of(usd, +one, today).abs() == Money.of(usd, +one, today)
## With overload:
assert abs(Money.NA) == Money.NA
assert abs(Money.of(usd, zero, today)) == Money.of(usd, zero, today)
assert abs(Money.of(usd, -one, today)) == Money.of(usd, +one, today)
assert abs(Money.of(usd, +one, today)) == Money.of(usd, +one, today)
def test_floor_division() -> None:
## First use `Money.NA`s:
assert Money.NA.floor_divide(1) == Money.NA
## Vanilla subtraction:
assert Money.of(usd, one,
today).floor_divide(1) == Money.of(usd, one, today)
assert Money.of(usd, one,
today).floor_divide(2) == Money.of(usd, zero, today)
assert Money.of(usd, -one,
today).floor_divide(1) == Money.of(usd, -one, today)
assert Money.of(usd, -one,
today).floor_divide(2) == Money.of(usd, zero, today)
## Various divisor types:
assert Money.of(usd, one,
today).floor_divide(2) == Money.of(usd, zero, today)
assert Money.of(usd, one,
today).floor_divide(2.0) == Money.of(usd, zero, today)
assert Money.of(usd, one,
today).floor_divide(two) == Money.of(usd, zero, today)
## Division by zero:
assert Money.of(usd, one, today).floor_divide(0) == Money.NA
assert Money.of(usd, one, today).floor_divide(zero) == Money.NA
assert Money.of(usd, one, today).floor_divide(0.0) == Money.NA
## Operator overload:
assert Money.NA / 1 == Money.NA
assert Money.of(usd, one, today) // 1 == Money.of(usd, one, today)
assert Money.of(usd, one, today) // 2 == Money.of(usd, zero, today)
assert Money.of(usd, -one, today) // 1 == Money.of(usd, -one, today)
assert Money.of(usd, -one, today) // 2 == Money.of(usd, zero, today)
assert Money.of(usd, -one, today) // 0 == Money.NA
## Extras
assert Money.of(usd, Decimal("10"),
today).floor_divide(Decimal("10")) == Money.of(
usd, Decimal("1.00"), today)
assert Money.of(usd, Decimal("10"),
today).floor_divide(Decimal("11")) == Money.of(
usd, Decimal("0.00"), today)
def test_comparisons() -> None:
## First use `Money.NA`s:
assert not (Money.NA < Money.NA)
assert Money.NA <= Money.NA
assert not (Money.NA > Money.NA)
assert Money.NA >= Money.NA
## Try mixed:
assert Money.NA < Money.of(usd, -one, today)
assert Money.NA <= Money.of(usd, -one, today)
assert not (Money.NA > Money.of(usd, -one, today))
assert not (Money.NA >= Money.of(usd, -one, today))
## ... and:
assert not (Money.of(usd, -one, today) < Money.NA)
assert not (Money.of(usd, -one, today) <= Money.NA)
assert Money.of(usd, -one, today) > Money.NA
assert Money.of(usd, -one, today) >= Money.NA
## With defined values:
assert not (Money.of(usd, zero, today) < Money.of(usd, zero, today))
assert Money.of(usd, zero, today) <= Money.of(usd, zero, today)
assert not (Money.of(usd, zero, today) > Money.of(usd, zero, today))
assert Money.of(usd, zero, today) >= Money.of(usd, zero, today)
## ... and:
assert Money.of(usd, zero, today) < Money.of(usd, one, today)
assert Money.of(usd, zero, today) <= Money.of(usd, one, today)
assert not (Money.of(usd, zero, today) > Money.of(usd, one, today))
assert not (Money.of(usd, zero, today) >= Money.of(usd, one, today))
## ... and:
assert not (Money.of(usd, one, today) < Money.of(usd, zero, today))
assert not (Money.of(usd, one, today) <= Money.of(usd, zero, today))
assert Money.of(usd, one, today) > Money.of(usd, zero, today)
assert Money.of(usd, one, today) >= Money.of(usd, zero, today)
def test_scalar_multiplication() -> None:
## First use `Money.NA`s:
assert Money.NA.multiply(1) == Money.NA
## Vanilla subtraction:
assert Money.of(usd, one, today).multiply(1) == Money.of(usd, one, today)
assert Money.of(usd, one, today).multiply(2) == Money.of(usd, two, today)
assert Money.of(usd, -one, today).multiply(1) == Money.of(usd, -one, today)
assert Money.of(usd, -one, today).multiply(2) == Money.of(usd, -two, today)
## Other types:
assert Money.of(usd, one, today).multiply(1) == Money.of(usd, one, today)
assert Money.of(usd, one, today).multiply(1.0) == Money.of(usd, one, today)
assert Money.of(usd, one, today).multiply(one) == Money.of(usd, one, today)
## Operator overload:
assert Money.NA * 1 == Money.NA
assert Money.of(usd, one, today) * 1 == Money.of(usd, one, today)
assert Money.of(usd, one, today) * 2 == Money.of(usd, two, today)
assert Money.of(usd, -one, today) * 1 == Money.of(usd, -one, today)
assert Money.of(usd, -one, today) * 2 == Money.of(usd, -two, today)
## Extras
assert Money.of(usd, one, today).multiply(Decimal("0.050")) == Money.of(
usd, Decimal("0.05"), today)
assert Money.of(usd, one, today).multiply(Decimal("0.005")) == Money.of(
usd, Decimal("0.00"), today)
assert Money.of(usd, one, today).multiply(Decimal("0.015")) == Money.of(
usd, Decimal("0.02"), today)
def test_scalar_subtraction() -> None:
## First use `Money.NA`s:
assert Money.NA.scalar_subtract(1) == Money.NA
## Vanilla subtraction:
assert Money.of(usd, zero,
today).scalar_subtract(1) == Money.of(usd, -one, today)
assert Money.of(usd, zero,
today).scalar_subtract(1.0) == Money.of(usd, -one, today)
assert Money.of(usd, zero,
today).scalar_subtract(one) == Money.of(usd, -one, today)
assert Money.of(usd, zero,
today).scalar_subtract(-1) == Money.of(usd, one, today)
## Operator overload:
assert Money.of(usd, zero,
today).scalar_subtract(1) == Money.of(usd, -one, today)
assert Money.of(usd, zero,
today).scalar_subtract(-1) == Money.of(usd, one, today)
## Extras:
assert Money.of(usd, zero,
today).scalar_subtract(0.5) == Money.of(usd, -half, today)
assert Money.of(usd, zero, today).scalar_subtract(
Decimal("0.05")) == -Money.of(usd, Decimal("0.05"), today)
assert Money.of(usd, zero, today).scalar_subtract(
Decimal("0.005")) == -Money.of(usd, Decimal("0"), today)
assert Money.of(usd, zero, today).scalar_subtract(
Decimal("0.015")) == -Money.of(usd, Decimal("0.02"), today)
def test_positive() -> None:
## Vanilla:
assert Money.NA.positive() == Money.NA
assert Money.of(usd, zero, today).positive() == Money.of(usd, zero, today)
assert Money.of(usd, -one, today).positive() == Money.of(usd, -one, today)
assert Money.of(usd, +one, today).positive() == Money.of(usd, +one, today)
## With overload:
assert +Money.NA == Money.NA
assert +Money.of(usd, zero, today) == Money.of(usd, zero, today)
assert +Money.of(usd, -one, today) == Money.of(usd, -one, today)
assert +Money.of(usd, +one, today) == Money.of(usd, +one, today)
def test_scalar_addition() -> None:
## First use `Money.NA`s:
assert Money.NA.scalar_add(1) == Money.NA
## Vanilla addition:
assert Money.of(usd, zero,
today).scalar_add(1) == Money.of(usd, one, today)
assert Money.of(usd, zero,
today).scalar_add(1.0) == Money.of(usd, one, today)
assert Money.of(usd, zero,
today).scalar_add(one) == Money.of(usd, one, today)
assert Money.of(usd, zero,
today).scalar_add(-1) == Money.of(usd, -one, today)
## Extras:
assert Money.of(usd, zero,
today).scalar_add(0.5) == Money.of(usd, half, today)
assert Money.of(usd, zero, today).scalar_add(Decimal("0.05")) == Money.of(
usd, Decimal("0.05"), today)
assert Money.of(usd, zero, today).scalar_add(Decimal("0.005")) == Money.of(
usd, Decimal("0"), today)
assert Money.of(usd, zero, today).scalar_add(Decimal("0.015")) == Money.of(
usd, Decimal("0.02"), today)
def test_round() -> None:
## Vanilla:
assert Money.NA.round(2) == Money.NA
assert Money.of(usd, zero, today).round(2) == Money.of(usd, zero, today)
assert Money.of(usd, -one, today).round(2) == Money.of(usd, -one, today)
assert Money.of(usd, +one, today).round(2) == Money.of(usd, +one, today)
## Quick tests:
assert Money.of(usd, Decimal("1.555"),
today).round(2) == Money.of(usd, Decimal("1.56"), today)
assert Money.of(usd, Decimal("1.545"),
today).round(2) == Money.of(usd, Decimal("1.54"), today)
## With overload:
assert round(Money.NA, 2) == Money.NA
assert round(Money.of(usd, zero, today), 2) == Money.of(usd, zero, today)
assert round(Money.of(usd, -one, today), 2) == Money.of(usd, -one, today)
assert round(Money.of(usd, +one, today), 2) == Money.of(usd, +one, today)
assert round(Money.of(usd, Decimal("1.555"), today),
2) == Money.of(usd, Decimal("1.56"), today)
assert round(Money.of(usd, Decimal("1.545"), today),
2) == Money.of(usd, Decimal("1.54"), today)
## Extras:
assert round(Money.of(usd, Decimal("0.545"), today),
0) == Money.of(usd, Decimal("1"), today)
assert round(Money.of(usd, Decimal("1.545"), today),
0) == Money.of(usd, Decimal("2"), today)
assert round(Money.of(usd, Decimal("0.545"), today),
1) == Money.of(usd, Decimal("0.5"), today)
assert round(Money.of(usd, Decimal("1.545"), today),
1) == Money.of(usd, Decimal("1.5"), today)
assert round(Money.of(usd, Decimal("0.45"), today),
1) == Money.of(usd, Decimal("0.4"), today)
assert round(Money.of(usd, Decimal("1.45"), today),
1) == Money.of(usd, Decimal("1.4"), today)
## TODO: Following two are not really what round function signature says. mypy can't detect it!
assert round(Money.of(usd, Decimal("1.4"),
today)) == Money.of(usd, Decimal("1"), today)
assert round(Money.of(usd, Decimal("1.5"),
today)) == Money.of(usd, Decimal("2"), today)