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Location: NPO-Accounting/conservancy_beancount/tests/test_reports_related_postings.py - annotation
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reports.core: Start Balance class.
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# 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 datetime
import itertools
from decimal import Decimal
import pytest
from . import testutil
from conservancy_beancount import data
from conservancy_beancount.reports import core
_day_counter = itertools.count(1)
def next_date():
return testutil.FY_MID_DATE + datetime.timedelta(next(_day_counter))
def txn_pair(acct, src_acct, dst_acct, amount, date=None, txn_meta={}, post_meta={}):
if date is None:
date = next_date()
src_txn = testutil.Transaction(date=date, **txn_meta, postings=[
(acct, amount, post_meta.copy()),
(src_acct, -amount),
])
dst_date = date + datetime.timedelta(days=1)
dst_txn = testutil.Transaction(date=dst_date, **txn_meta, postings=[
(acct, -amount, post_meta.copy()),
(dst_acct, amount),
])
return (src_txn, dst_txn)
def donation(amount, currency='USD', date=None, other_acct='Assets:Cash', **meta):
if date is None:
date = next_date()
return testutil.Transaction(date=date, postings=[
('Income:Donations', -amount, currency, meta),
(other_acct, amount, currency),
])
def test_balance():
related = core.RelatedPostings()
related.add(data.Posting.from_beancount(donation(10), 0))
assert related.balance() == testutil.balance_map(USD=-10)
related.add(data.Posting.from_beancount(donation(15), 0))
assert related.balance() == testutil.balance_map(USD=-25)
related.add(data.Posting.from_beancount(donation(20), 0))
assert related.balance() == testutil.balance_map(USD=-45)
def test_balance_zero():
related = core.RelatedPostings()
related.add(data.Posting.from_beancount(donation(10), 0))
related.add(data.Posting.from_beancount(donation(-10), 0))
assert related.balance().is_zero()
def test_balance_multiple_currencies():
related = core.RelatedPostings()
related.add(data.Posting.from_beancount(donation(10, 'GBP'), 0))
related.add(data.Posting.from_beancount(donation(15, 'GBP'), 0))
related.add(data.Posting.from_beancount(donation(20, 'EUR'), 0))
related.add(data.Posting.from_beancount(donation(25, 'EUR'), 0))
assert related.balance() == testutil.balance_map(EUR=-45, GBP=-25)
def test_balance_multiple_currencies_one_zero():
related = core.RelatedPostings()
related.add(data.Posting.from_beancount(donation(10, 'EUR'), 0))
related.add(data.Posting.from_beancount(donation(15, 'USD'), 0))
related.add(data.Posting.from_beancount(donation(-10, 'EUR'), 0))
assert related.balance() == testutil.balance_map(EUR=0, USD=-15)
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