reports: Balance is initialized with just amounts.
This works fine with how we're currently using it, makes transformation methods easier to implement, and avoids potential bugs where a balance is initialized with a bad mapping.
This commit is contained in:
Brett Smith
parent
069939b2d3
commit
3d704e2865
4 changed files with 89 additions and 117 deletions
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@ -60,27 +60,22 @@ class Balance(Mapping[str, data.Amount]):
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"""
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__slots__ = ('_currency_map',)
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def __init__(self,
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source: Union[Iterable[Tuple[str, data.Amount]],
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Mapping[str, data.Amount]]=(),
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) -> None:
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if isinstance(source, Mapping):
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source = source.items()
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self._currency_map = {
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currency: amount.number for currency, amount in source
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}
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def __init__(self, source: Iterable[data.Amount]=()) -> None:
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self._currency_map = {amount.currency: amount for amount in source}
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def _add_amount(self,
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currency_map: MutableMapping[str, Decimal],
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currency_map: MutableMapping[str, data.Amount],
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amount: data.Amount,
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) -> None:
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code = amount.currency
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try:
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currency_map[amount.currency] += amount.number
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current_number = currency_map[code].number
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except KeyError:
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currency_map[amount.currency] = amount.number
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current_number = Decimal(0)
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currency_map[code] = data.Amount(current_number + amount.number, code)
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def _add_other(self,
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currency_map: MutableMapping[str, Decimal],
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currency_map: MutableMapping[str, data.Amount],
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other: Union[data.Amount, 'Balance'],
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) -> None:
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if isinstance(other, Balance):
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@ -90,21 +85,19 @@ class Balance(Mapping[str, data.Amount]):
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self._add_amount(currency_map, other)
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def __repr__(self) -> str:
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return f"{type(self).__name__}({self._currency_map!r})"
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values = [repr(amt) for amt in self.values()]
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return f"{type(self).__name__}({values!r})"
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def __str__(self) -> str:
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return self.format()
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def __abs__(self) -> 'Balance':
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return type(self)(
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(key, bc_amount.abs(amt)) for key, amt in self.items()
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)
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def __abs__(self: BalanceType) -> BalanceType:
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return type(self)(bc_amount.abs(amt) for amt in self.values())
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def __add__(self: BalanceType, other: Union[data.Amount, 'Balance']) -> BalanceType:
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retval_map = self._currency_map.copy()
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self._add_other(retval_map, other)
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return type(self)((code, data.Amount(number, code))
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for code, number in retval_map.items())
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return type(self)(retval_map.values())
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def __eq__(self, other: Any) -> bool:
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if (self.is_zero()
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@ -114,13 +107,11 @@ class Balance(Mapping[str, data.Amount]):
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else:
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return super().__eq__(other)
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def __neg__(self) -> 'Balance':
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return type(self)(
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(key, -amt) for key, amt in self.items()
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)
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def __neg__(self: BalanceType) -> BalanceType:
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return type(self)(-amt for amt in self.values())
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def __getitem__(self, key: str) -> data.Amount:
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return data.Amount(self._currency_map[key], key)
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return self._currency_map[key]
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def __iter__(self) -> Iterator[str]:
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return iter(self._currency_map)
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@ -132,7 +123,7 @@ class Balance(Mapping[str, data.Amount]):
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op_func: Callable[[DecimalCompat, DecimalCompat], bool],
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operand: DecimalCompat,
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) -> bool:
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return all(op_func(number, operand) for number in self._currency_map.values())
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return all(op_func(amt.number, operand) for amt in self.values())
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def eq_zero(self) -> bool:
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"""Returns true if all amounts in the balance == 0."""
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@ -34,6 +34,10 @@ DEFAULT_STRINGS = [
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({'JPY': '-5500.00', 'BRL': '-8500.00'}, "-8,500.00 BRL, -5,500 JPY"),
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]
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def amounts_from_map(currency_map):
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for code, number in currency_map.items():
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yield testutil.Amount(number, code)
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def test_empty_balance():
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balance = core.Balance()
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assert not balance
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@ -49,7 +53,7 @@ def test_empty_balance():
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])
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def test_zero_balance(currencies):
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keys = currencies.split()
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balance = core.Balance(testutil.balance_map((key, 0) for key in keys))
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balance = core.Balance(testutil.Amount(0, key) for key in keys)
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assert balance
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assert len(balance) == len(keys)
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assert balance.is_zero()
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@ -62,22 +66,22 @@ def test_zero_balance(currencies):
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'JPY INR BRL',
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])
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def test_nonzero_balance(currencies):
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amounts = testutil.balance_map(zip(currencies.split(), itertools.count(110, 100)))
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balance = core.Balance(amounts.items())
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amounts = dict(zip(currencies.split(), itertools.count(110, 100)))
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balance = core.Balance(amounts_from_map(amounts))
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assert balance
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assert len(balance) == len(amounts)
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assert not balance.is_zero()
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assert all(balance[key] == amt for key, amt in amounts.items())
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assert all(balance[key] == testutil.Amount(amt, key) for key, amt in amounts.items())
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def test_mixed_balance():
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amounts = testutil.balance_map(USD=0, EUR=120)
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balance = core.Balance(amounts.items())
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amounts = {'USD': 0, 'EUR': 120}
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balance = core.Balance(amounts_from_map(amounts))
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assert balance
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assert len(balance) == 2
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assert not balance.is_zero()
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assert all(balance[key] == amt for key, amt in amounts.items())
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assert all(balance[key] == testutil.Amount(amt, key) for key, amt in amounts.items())
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@pytest.mark.parametrize('balance_map_kwargs,expected', [
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@pytest.mark.parametrize('mapping,expected', [
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({}, True),
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({'USD': 0}, True),
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({'USD': 0, 'EUR': 0}, True),
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@ -89,13 +93,12 @@ def test_mixed_balance():
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({'JPY': 10, 'BRL': 0}, False),
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({'JPY': 10, 'BRL': 20}, False),
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])
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def test_eq_zero(balance_map_kwargs, expected):
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amounts = testutil.balance_map(**balance_map_kwargs)
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balance = core.Balance(amounts.items())
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def test_eq_zero(mapping, expected):
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balance = core.Balance(amounts_from_map(mapping))
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assert balance.eq_zero() == expected
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assert balance.is_zero() == expected
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@pytest.mark.parametrize('balance_map_kwargs,expected', [
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@pytest.mark.parametrize('mapping,expected', [
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({}, True),
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({'USD': 0}, True),
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({'USD': 0, 'EUR': 0}, True),
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@ -106,12 +109,11 @@ def test_eq_zero(balance_map_kwargs, expected):
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({'JPY': 10, 'BRL': 0}, True),
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({'JPY': 10, 'BRL': 20}, True),
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])
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def test_ge_zero(balance_map_kwargs, expected):
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amounts = testutil.balance_map(**balance_map_kwargs)
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balance = core.Balance(amounts.items())
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def test_ge_zero(mapping, expected):
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balance = core.Balance(amounts_from_map(mapping))
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assert balance.ge_zero() == expected
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@pytest.mark.parametrize('balance_map_kwargs,expected', [
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@pytest.mark.parametrize('mapping,expected', [
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({}, True),
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({'USD': 0}, True),
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({'USD': 0, 'EUR': 0}, True),
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@ -122,12 +124,11 @@ def test_ge_zero(balance_map_kwargs, expected):
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({'JPY': 10, 'BRL': 0}, False),
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({'JPY': 10, 'BRL': 20}, False),
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])
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def test_le_zero(balance_map_kwargs, expected):
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amounts = testutil.balance_map(**balance_map_kwargs)
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balance = core.Balance(amounts.items())
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def test_le_zero(mapping, expected):
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balance = core.Balance(amounts_from_map(mapping))
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assert balance.le_zero() == expected
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@pytest.mark.parametrize('balance_map_kwargs', [
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@pytest.mark.parametrize('mapping', [
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{},
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{'USD': 0},
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{'EUR': 10},
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@ -136,17 +137,13 @@ def test_le_zero(balance_map_kwargs, expected):
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{'JPY': -25, 'BRL': -35},
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{'JPY': 40, 'USD': 0, 'EUR': -50},
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])
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def test_abs(balance_map_kwargs):
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amounts = testutil.balance_map(**balance_map_kwargs)
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actual = abs(core.Balance(amounts.items()))
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assert set(actual) == set(balance_map_kwargs)
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abs_amounts = testutil.balance_map(**{
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key: abs(number) for key, number in balance_map_kwargs.items()
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})
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for key in balance_map_kwargs:
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assert actual[key] == abs_amounts[key]
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def test_abs(mapping):
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actual = abs(core.Balance(amounts_from_map(mapping)))
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assert set(actual) == set(mapping)
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for key, number in mapping.items():
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assert actual[key] == testutil.Amount(abs(number), key)
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@pytest.mark.parametrize('balance_map_kwargs', [
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@pytest.mark.parametrize('mapping', [
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{},
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{'USD': 0},
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{'EUR': 10},
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@ -155,14 +152,13 @@ def test_abs(balance_map_kwargs):
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{'JPY': -25, 'BRL': -35},
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{'JPY': 40, 'USD': 0, 'EUR': -50},
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])
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def test_neg(balance_map_kwargs):
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amounts = testutil.balance_map(**balance_map_kwargs)
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actual = -core.Balance(amounts.items())
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assert set(actual) == set(balance_map_kwargs)
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for key in balance_map_kwargs:
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assert actual[key] == -amounts[key]
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def test_neg(mapping):
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actual = -core.Balance(amounts_from_map(mapping))
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assert set(actual) == set(mapping)
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for key, number in mapping.items():
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assert actual[key] == testutil.Amount(-number, key)
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@pytest.mark.parametrize('kwargs1,kwargs2,expected', [
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@pytest.mark.parametrize('map1,map2,expected', [
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({}, {}, True),
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({}, {'USD': 0}, True),
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({}, {'EUR': 1}, False),
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@ -173,9 +169,9 @@ def test_neg(balance_map_kwargs):
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({'USD': 1, 'EUR': 2, 'BRL': '3.0'}, {'USD': '1.0', 'EUR': '2.0'}, False),
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({'USD': 1, 'EUR': 2}, {'USD': '1.0', 'EUR': '2.0'}, True),
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])
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def test_eq(kwargs1, kwargs2, expected):
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bal1 = core.Balance(testutil.balance_map(**kwargs1))
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bal2 = core.Balance(testutil.balance_map(**kwargs2))
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def test_eq(map1, map2, expected):
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bal1 = core.Balance(amounts_from_map(map1))
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bal2 = core.Balance(amounts_from_map(map2))
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actual = bal1 == bal2
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assert actual == expected
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@ -186,8 +182,8 @@ def test_eq(kwargs1, kwargs2, expected):
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(-4000, 'BRL'),
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})
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def test_add_amount(number, currency):
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start_amounts = testutil.balance_map(USD=500)
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start_bal = core.Balance(start_amounts)
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start_amount = testutil.Amount(500, 'USD')
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start_bal = core.Balance([start_amount])
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add_amount = testutil.Amount(number, currency)
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actual = start_bal + add_amount
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if currency == 'USD':
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@ -195,9 +191,9 @@ def test_add_amount(number, currency):
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assert actual['USD'] == testutil.Amount(500 + number)
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else:
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assert len(actual) == 2
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assert actual['USD'] == testutil.Amount(500)
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assert actual['USD'] == start_amount
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assert actual[currency] == add_amount
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assert start_bal == start_amounts
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assert start_bal == {'USD': start_amount}
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@pytest.mark.parametrize('number,currency', {
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(50, 'USD'),
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@ -206,8 +202,7 @@ def test_add_amount(number, currency):
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(-4000, 'BRL'),
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})
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def test_iadd_amount(number, currency):
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start_amounts = testutil.balance_map(USD=500)
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balance = core.MutableBalance(start_amounts)
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balance = core.MutableBalance([testutil.Amount(500, 'USD')])
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add_amount = testutil.Amount(number, currency)
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balance += add_amount
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if currency == 'USD':
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@ -218,7 +213,7 @@ def test_iadd_amount(number, currency):
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assert balance['USD'] == testutil.Amount(500)
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assert balance[currency] == add_amount
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@pytest.mark.parametrize('balance_map_kwargs', [
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@pytest.mark.parametrize('mapping', [
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{},
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{'USD': 0},
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{'EUR': 10},
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@ -227,18 +222,17 @@ def test_iadd_amount(number, currency):
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{'JPY': -25, 'BRL': -35},
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{'JPY': 40, 'USD': 0, 'EUR': -50},
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])
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def test_add_balance(balance_map_kwargs):
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start_numbers = {'USD': 500, 'BRL': 40000}
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start_bal = core.Balance(testutil.balance_map(**start_numbers))
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expect_numbers = start_numbers.copy()
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for code, number in balance_map_kwargs.items():
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def test_add_balance(mapping):
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expect_numbers = {'USD': 500, 'BRL': 40000}
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start_bal = core.Balance(amounts_from_map(expect_numbers))
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for code, number in mapping.items():
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expect_numbers[code] = expect_numbers.get(code, 0) + number
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add_bal = core.Balance(testutil.balance_map(**balance_map_kwargs))
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add_bal = core.Balance(amounts_from_map(mapping))
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actual = start_bal + add_bal
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expected = core.Balance(testutil.balance_map(**expect_numbers))
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expected = core.Balance(amounts_from_map(expect_numbers))
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assert actual == expected
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@pytest.mark.parametrize('balance_map_kwargs', [
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@pytest.mark.parametrize('mapping', [
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{},
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{'USD': 0},
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{'EUR': 10},
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@ -247,25 +241,24 @@ def test_add_balance(balance_map_kwargs):
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{'JPY': -25, 'BRL': -35},
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{'JPY': 40, 'USD': 0, 'EUR': -50},
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])
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def test_iadd_balance(balance_map_kwargs):
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start_numbers = {'USD': 500, 'BRL': 40000}
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balance = core.MutableBalance(testutil.balance_map(**start_numbers))
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expect_numbers = start_numbers.copy()
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for code, number in balance_map_kwargs.items():
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def test_iadd_balance(mapping):
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expect_numbers = {'USD': 500, 'BRL': 40000}
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balance = core.MutableBalance(amounts_from_map(expect_numbers))
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for code, number in mapping.items():
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expect_numbers[code] = expect_numbers.get(code, 0) + number
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balance += core.Balance(testutil.balance_map(**balance_map_kwargs))
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expected = core.Balance(testutil.balance_map(**expect_numbers))
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balance += core.Balance(amounts_from_map(mapping))
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expected = core.Balance(amounts_from_map(expect_numbers))
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assert balance == expected
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@pytest.mark.parametrize('balance_map_kwargs,expected', DEFAULT_STRINGS)
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def test_str(balance_map_kwargs, expected):
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amounts = testutil.balance_map(**balance_map_kwargs)
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assert str(core.Balance(amounts.items())) == expected
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@pytest.mark.parametrize('mapping,expected', DEFAULT_STRINGS)
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def test_str(mapping, expected):
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balance = core.Balance(amounts_from_map(mapping))
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assert str(balance) == expected
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@pytest.mark.parametrize('bal_kwargs,expected', DEFAULT_STRINGS)
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def test_format_defaults(bal_kwargs, expected):
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amounts = testutil.balance_map(**bal_kwargs)
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assert core.Balance(amounts).format() == expected
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@pytest.mark.parametrize('mapping,expected', DEFAULT_STRINGS)
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def test_format_defaults(mapping, expected):
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balance = core.Balance(amounts_from_map(mapping))
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assert balance.format() == expected
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@pytest.mark.parametrize('fmt,expected', [
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('¤##0.0', '¥5000, -€1500.00'),
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@ -274,7 +267,7 @@ def test_format_defaults(bal_kwargs, expected):
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('#,#00.0 ¤¤;(#,#00.0 ¤¤)', '5,000 JPY, (1,500.00 EUR)'),
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])
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def test_format_fmt(fmt, expected):
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amounts = testutil.balance_map(JPY=5000, EUR=-1500)
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amounts = [testutil.Amount(5000, 'JPY'), testutil.Amount(-1500, 'EUR')]
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balance = core.Balance(amounts)
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assert balance.format(fmt) == expected
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@ -284,16 +277,15 @@ def test_format_fmt(fmt, expected):
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'\0',
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])
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def test_format_sep(sep):
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bal_kwargs, expected = DEFAULT_STRINGS[-1]
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mapping, expected = DEFAULT_STRINGS[-1]
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expected = expected.replace(', ', sep)
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amounts = testutil.balance_map(**bal_kwargs)
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balance = core.Balance(amounts)
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balance = core.Balance(amounts_from_map(mapping))
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assert balance.format(sep=sep) == expected
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def test_format_none():
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amounts = testutil.balance_map(BRL=65000)
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balance = core.Balance(amounts)
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expected = babel.numbers.format_currency(65000, 'BRL')
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args = (65000, 'BRL')
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balance = core.Balance([testutil.Amount(*args)])
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expected = babel.numbers.format_currency(*args)
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assert balance.format(None) == expected
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@pytest.mark.parametrize('empty', [
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@ -90,7 +90,7 @@ def test_balance_credit_card(credit_card_cycle, index, expected):
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related = core.RelatedPostings(
|
||||
txn.postings[0] for txn in credit_card_cycle[:index + 1]
|
||||
)
|
||||
assert related.balance() == testutil.balance_map(USD=expected)
|
||||
assert related.balance() == {'USD': testutil.Amount(expected, 'USD')}
|
||||
|
||||
def check_iter_with_balance(entries):
|
||||
expect_posts = [txn.postings[0] for txn in entries]
|
||||
|
|
@ -99,7 +99,8 @@ def check_iter_with_balance(entries):
|
|||
for post in expect_posts:
|
||||
number, currency = post.units
|
||||
balance_tally[currency] += number
|
||||
expect_balances.append(testutil.balance_map(balance_tally.items()))
|
||||
expect_balances.append({code: testutil.Amount(number, code)
|
||||
for code, number in balance_tally.items()})
|
||||
related = core.RelatedPostings(expect_posts)
|
||||
for (post, balance), exp_post, exp_balance in zip(
|
||||
related.iter_with_balance(),
|
||||
|
|
|
|||
|
|
@ -156,18 +156,6 @@ OPENING_EQUITY_ACCOUNTS = itertools.cycle([
|
|||
'Equity:OpeningBalance',
|
||||
])
|
||||
|
||||
def balance_map(source=None, **kwargs):
|
||||
# The source and/or kwargs should map currency name strings to
|
||||
# things you can pass to Decimal (a decimal string, an int, etc.)
|
||||
# This returns a dict that maps currency name strings to Amount instances.
|
||||
retval = {}
|
||||
if source is not None:
|
||||
retval.update((currency, Amount(number, currency))
|
||||
for currency, number in source)
|
||||
if kwargs:
|
||||
retval.update(balance_map(kwargs.items()))
|
||||
return retval
|
||||
|
||||
def OpeningBalance(acct=None, **txn_meta):
|
||||
if acct is None:
|
||||
acct = next(OPENING_EQUITY_ACCOUNTS)
|
||||
|
|
|
|||
Loading…
Add table
Reference in a new issue