NPO-Accounting/conservancy_beancount Changeset - 1b8137529472

Changeset - 1b8137529472

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Brett Smith - 4 years ago 2020-04-29 18:35:20
brettcsmith@brettcsmith.org

reports: Add Balance.__neg__() method.

2 files changed with 21 insertions and 0 deletions:

conservancy_beancount/reports/core.py

tests/test_reports_balance.py

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conservancy_beancount/reports/core.py

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@@ ... / @@ -67,6 +67,11 @@ class Balance(Mapping[str, data.Amount]): @@
         amounts.sort(key=lambda amt: abs(amt.number), reverse=True)
         return ', '.join(str(amount) for amount in amounts)
     def __neg__(self) -> 'Balance':
         return type(self)(
             (key, -amt) for key, amt in self.items()
+        )
     def __getitem__(self, key: str) -> data.Amount:
         return data.Amount(self._currency_map[key], key)

tests/test_reports_balance.py

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@@ ... / @@ -67,6 +67,22 @@ def test_mixed_balance(): @@
     assert not balance.is_zero()
     assert all(balance[key] == amt for key, amt in amounts.items())
 @pytest.mark.parametrize('balance_map_kwargs', [
     {},
     {'USD': 0},
     {'EUR': 10},
     {'JPY': 20, 'BRL': 30},
     {'EUR': -15},
     {'JPY': -25, 'BRL': -35},
     {'JPY': 40, 'USD': 0, 'EUR': -50},
 ])
 def test_neg(balance_map_kwargs):
     amounts = testutil.balance_map(**balance_map_kwargs)
     actual = -core.Balance(amounts.items())
     assert set(actual) == set(balance_map_kwargs)
     for key in balance_map_kwargs:
         assert actual[key] == -amounts[key]
 @pytest.mark.parametrize('balance_map_kwargs,expected', [
     ({}, "Zero balance"),
     ({'JPY': 0, 'BRL': 0}, "Zero balance"),

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