NPO-Accounting/conservancy_beancount Files · tests/test_reports_balance.py

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Brett Smith

plugin: Be more selective about when ! skips validation.

It makes sense to let the bookkeeper skip validations in situations
where the metadata requires information that might not be available
when entered. It does not make sense to skip validations that *must*
be available and affect the structure of the books, like project and
entity.

This commit ensures every plugin hook has a test for flagged
transactions, even for hooks that currently have the desired
behavior where no code changes were required for the test to
pass.

"""test_reports_balance - Unit tests for reports.core.Balance"""
# Copyright © 2020  Brett Smith
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program.  If not, see <https://www.gnu.org/licenses/>.

import itertools

from decimal import Decimal

import pytest

from . import testutil

from conservancy_beancount.reports import core

def test_empty_balance():
    balance = core.Balance()
    assert not balance
    assert len(balance) == 0
    assert balance.is_zero()
    with pytest.raises(KeyError):
        balance['USD']

@pytest.mark.parametrize('currencies', [
    'USD',
    'EUR GBP',
    'JPY INR BRL',
])
def test_zero_balance(currencies):
    keys = currencies.split()
    balance = core.Balance(testutil.balance_map((key, 0) for key in keys))
    assert balance
    assert len(balance) == len(keys)
    assert balance.is_zero()
    assert all(balance[key].number == 0 for key in keys)
    assert all(balance[key].currency == key for key in keys)

@pytest.mark.parametrize('currencies', [
    'USD',
    'EUR GBP',
    'JPY INR BRL',
])
def test_nonzero_balance(currencies):
    amounts = testutil.balance_map(zip(currencies.split(), itertools.count(110, 100)))
    balance = core.Balance(amounts.items())
    assert balance
    assert len(balance) == len(amounts)
    assert not balance.is_zero()
    assert all(balance[key] == amt for key, amt in amounts.items())

def test_mixed_balance():
    amounts = testutil.balance_map(USD=0, EUR=120)
    balance = core.Balance(amounts.items())
    assert balance
    assert len(balance) == 2
    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"),
    ({'USD': '20.00'}, "20.00 USD"),
    ({'EUR': '50.00', 'GBP': '80.00'}, "80.00 GBP, 50.00 EUR"),
    ({'JPY': '-55.00', 'BRL': '-85.00'}, "-85.00 BRL, -55.00 JPY"),
])
def test_str(balance_map_kwargs, expected):
    amounts = testutil.balance_map(**balance_map_kwargs)
    assert str(core.Balance(amounts.items())) == expected