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path: root/beancount_extras_kris7t/plugins/transfer_accounts_test.py
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__copyright__ = 'Copyright (c) 2020  Kristóf Marussy <kristof@marussy.com>'
__license__ = 'GNU GPLv2'

import unittest

from beancount import loader
from beancount.parser import cmptest


class TestTransferAccounts(cmptest.TestCase):

    @loader.load_doc()
    def test_same_currency(self, entries, _, __):
        '''
        plugin "beancount_extras_kris7t.plugins.transfer_accounts"

        2020-01-01 open Assets:Checking
        2020-01-01 open Liabilities:CreditCard
        2020-01-01 open Expenses:Taxi

        2020-03-15 * "Taxi home from concert in Brooklyn" ^taxi
          Assets:Checking  -20 USD
          Expenses:Taxi
            transfer-account: Liabilities:CreditCard
            transfer-date: 2020-03-10
        '''
        self.assertEqualEntries('''
        plugin "beancount_extras_kris7t.plugins.transfer_accounts"

        2020-01-01 open Assets:Checking
        2020-01-01 open Liabilities:CreditCard
        2020-01-01 open Expenses:Taxi

        2020-03-15 * "Taxi home from concert in Brooklyn" ^taxi
          Assets:Checking  -20 USD
          Liabilities:CreditCard  20 USD

        2020-03-10 * "Taxi home from concert in Brooklyn" ^taxi
          Expenses:Taxi  20 USD
          Liabilities:CreditCard  -20 USD
        ''', entries)

    @loader.load_doc()
    def test_missing_date(self, entries, _, __):
        '''
        plugin "beancount_extras_kris7t.plugins.transfer_accounts"

        2020-01-01 open Assets:Checking
        2020-01-01 open Liabilities:CreditCard
        2020-01-01 open Expenses:Taxi

        2020-03-15 * "Taxi home from concert in Brooklyn" ^taxi
          Assets:Checking  -20 USD
          Expenses:Taxi
            transfer-account: Liabilities:CreditCard
        '''
        self.assertEqualEntries('''
        plugin "beancount_extras_kris7t.plugins.transfer_accounts"

        2020-01-01 open Assets:Checking
        2020-01-01 open Liabilities:CreditCard
        2020-01-01 open Expenses:Taxi

        2020-03-15 * "Taxi home from concert in Brooklyn" ^taxi
          Assets:Checking  -20 USD
          Liabilities:CreditCard  20 USD

        2020-03-15 * "Taxi home from concert in Brooklyn" ^taxi
          Expenses:Taxi  20 USD
          Liabilities:CreditCard  -20 USD
        ''', entries)

    @loader.load_doc(expect_errors=True)
    def test_missing_account_with_date(self, _, errors, __):
        '''
        plugin "beancount_extras_kris7t.plugins.transfer_accounts"

        2020-01-01 open Assets:Checking
        2020-01-01 open Liabilities:CreditCard
        2020-01-01 open Expenses:Taxi

        2020-03-15 * "Taxi home from concert in Brooklyn" ^taxi
          Assets:Checking  -20 USD
          Expenses:Taxi
            transfer-date: 2020-03-10
        '''
        self.assertRegex(errors[0].message, 'transfer-date was set but transfer-account was not')

    @loader.load_doc(expect_errors=True)
    def test_missing_account_with_conversion(self, _, errors, __):
        '''
        plugin "beancount_extras_kris7t.plugins.transfer_accounts"

        2020-01-01 open Assets:Checking
        2020-01-01 open Liabilities:CreditCard
        2020-01-01 open Expenses:Taxi

        2020-03-15 * "Taxi home from concert in Brooklyn" ^taxi
          Assets:Checking  -25.60 CAD
          Expenses:Taxi  20 USD @ 1.28 CAD
            transfer-converted: FALSE
        '''
        self.assertRegex(
            errors[0].message, 'transfer-converted was set but transfer-account was not')

    @loader.load_doc(expect_errors=True)
    def test_invalid_account(self, _, errors, __):
        '''
        plugin "beancount_extras_kris7t.plugins.transfer_accounts"

        2020-01-01 open Assets:Checking
        2020-01-01 open Liabilities:CreditCard
        2020-01-01 open Expenses:Taxi

        2020-03-15 * "Taxi home from concert in Brooklyn" ^taxi
          Assets:Checking  -20 USD
          Expenses:Taxi
            transfer-account: 2020-03-10
        '''
        self.assertRegex(errors[0].message, 'transfer-account must be a string.*')

    @loader.load_doc(expect_errors=True)
    def test_invalid_date(self, _, errors, __):
        '''
        plugin "beancount_extras_kris7t.plugins.transfer_accounts"

        2020-01-01 open Assets:Checking
        2020-01-01 open Liabilities:CreditCard
        2020-01-01 open Expenses:Taxi

        2020-03-15 * "Taxi home from concert in Brooklyn" ^taxi
          Assets:Checking  -20 USD
          Expenses:Taxi
            transfer-account: Liabilities:CreditCard
            transfer-date: "Ides of March"
        '''
        self.assertRegex(errors[0].message, 'transfer-date must be a date.*')

    @loader.load_doc(expect_errors=True)
    def test_invalid_conversion(self, _, errors, __):
        '''
        plugin "beancount_extras_kris7t.plugins.transfer_accounts"

        2020-01-01 open Assets:Checking
        2020-01-01 open Liabilities:CreditCard
        2020-01-01 open Expenses:Taxi

        2020-03-15 * "Taxi home from concert in Brooklyn" ^taxi
          Assets:Checking  -25.60 CAD
          Expenses:Taxi  20 USD @ 1.28 CAD
            transfer-account: Liabilities:CreditCard
            transfer-converted: "indeed"
        '''
        self.assertRegex(errors[0].message, 'transfer-converted must be a Boolean.*')

    @loader.load_doc(expect_errors=True)
    def test_invalid_account_conversion(self, _, errors, __):
        '''
        plugin "beancount_extras_kris7t.plugins.transfer_accounts"

        2020-01-01 open Liabilities:CreditCard
          transfer-converted: "Indeed"
        '''
        self.assertRegex(errors[0].message, 'transfer-converted must be a Boolean.*')

    @loader.load_doc(expect_errors=True)
    def test_redundant_conversion(self, _, errors, __):
        '''
        plugin "beancount_extras_kris7t.plugins.transfer_accounts"

        2020-01-01 open Assets:Checking
        2020-01-01 open Liabilities:CreditCard
        2020-01-01 open Expenses:Taxi

        2020-03-15 * "Taxi home from concert in Brooklyn" ^taxi
          Assets:Checking  -20 USD
          Expenses:Taxi
            transfer-account: Liabilities:CreditCard
            transfer-converted: TRUE
        '''
        self.assertRegex(
            errors[0].message, 'transfer-converted was set, but there is no conversion.*')

    @loader.load_doc()
    def test_converted_price_false(self, entries, _, __):
        '''
        plugin "beancount_extras_kris7t.plugins.transfer_accounts"

        2020-01-01 open Assets:Checking
        2020-01-01 open Liabilities:CreditCard
        2020-01-01 open Expenses:Taxi

        2020-03-15 * "Taxi home from concert in Brooklyn" ^taxi
          Assets:Checking  -25.60 CAD
          Expenses:Taxi  20 USD @ 1.28 CAD
            transfer-account: Liabilities:CreditCard
            transfer-date: 2020-03-10
            transfer-converted: FALSE
        '''
        self.assertEqualEntries('''
        plugin "beancount_extras_kris7t.plugins.transfer_accounts"

        2020-01-01 open Assets:Checking
        2020-01-01 open Liabilities:CreditCard
        2020-01-01 open Expenses:Taxi

        2020-03-15 * "Taxi home from concert in Brooklyn" ^taxi
          Assets:Checking  -25.60 CAD
          Liabilities:CreditCard  25.60 CAD

        2020-03-10 * "Taxi home from concert in Brooklyn" ^taxi
          Expenses:Taxi  20 USD @ 1.28 CAD
          Liabilities:CreditCard  -25.60 CAD
        ''', entries)

    @loader.load_doc()
    def test_converted_price_true(self, entries, _, __):
        '''
        plugin "beancount_extras_kris7t.plugins.transfer_accounts"

        2020-01-01 open Assets:Checking
        2020-01-01 open Liabilities:CreditCard
        2020-01-01 open Expenses:Taxi

        2020-03-15 * "Taxi home from concert in Brooklyn" ^taxi
          Assets:Checking  -25.60 CAD
          Expenses:Taxi  20 USD @ 1.28 CAD
            transfer-account: Liabilities:CreditCard
            transfer-date: 2020-03-10
            transfer-converted: TRUE
        '''
        self.assertEqualEntries('''
        plugin "beancount_extras_kris7t.plugins.transfer_accounts"

        2020-01-01 open Assets:Checking
        2020-01-01 open Liabilities:CreditCard
        2020-01-01 open Expenses:Taxi

        2020-03-15 * "Taxi home from concert in Brooklyn" ^taxi
          Assets:Checking  -25.60 CAD
          Liabilities:CreditCard  20 USD @ 1.28 CAD

        2020-03-10 * "Taxi home from concert in Brooklyn" ^taxi
          Expenses:Taxi  20 USD
          Liabilities:CreditCard  -20 USD
        ''', entries)

    @loader.load_doc()
    def test_converted_price_default(self, entries, _, __):
        '''
        plugin "beancount_extras_kris7t.plugins.transfer_accounts"

        2020-01-01 open Assets:Checking
        2020-01-01 open Liabilities:CreditCard
        2020-01-01 open Expenses:Taxi

        2020-03-15 * "Taxi home from concert in Brooklyn" ^taxi
          Assets:Checking  -25.60 CAD
          Expenses:Taxi  20 USD @ 1.28 CAD
            transfer-account: Liabilities:CreditCard
            transfer-date: 2020-03-10
        '''
        self.assertEqualEntries('''
        plugin "beancount_extras_kris7t.plugins.transfer_accounts"

        2020-01-01 open Assets:Checking
        2020-01-01 open Liabilities:CreditCard
        2020-01-01 open Expenses:Taxi

        2020-03-15 * "Taxi home from concert in Brooklyn" ^taxi
          Assets:Checking  -25.60 CAD
          Liabilities:CreditCard  20 USD @ 1.28 CAD

        2020-03-10 * "Taxi home from concert in Brooklyn" ^taxi
          Expenses:Taxi  20 USD
          Liabilities:CreditCard  -20 USD
        ''', entries)

    @loader.load_doc()
    def test_converted_price_account_false(self, entries, _, __):
        '''
        plugin "beancount_extras_kris7t.plugins.transfer_accounts"

        2020-01-01 open Assets:Checking
        2020-01-01 open Liabilities:CreditCard
          transfer-converted: FALSE
        2020-01-01 open Expenses:Taxi

        2020-03-15 * "Taxi home from concert in Brooklyn" ^taxi
          Assets:Checking  -25.60 CAD
          Expenses:Taxi  20 USD @ 1.28 CAD
            transfer-account: Liabilities:CreditCard
            transfer-date: 2020-03-10
        '''
        self.assertEqualEntries('''
        plugin "beancount_extras_kris7t.plugins.transfer_accounts"

        2020-01-01 open Assets:Checking
        2020-01-01 open Liabilities:CreditCard
        2020-01-01 open Expenses:Taxi

        2020-03-15 * "Taxi home from concert in Brooklyn" ^taxi
          Assets:Checking  -25.60 CAD
          Liabilities:CreditCard  25.60 CAD

        2020-03-10 * "Taxi home from concert in Brooklyn" ^taxi
          Expenses:Taxi  20 USD @ 1.28 CAD
          Liabilities:CreditCard  -25.60 CAD
        ''', entries)

    @loader.load_doc()
    def test_converted_price_account_true(self, entries, _, __):
        '''
        plugin "beancount_extras_kris7t.plugins.transfer_accounts"

        2020-01-01 open Assets:Checking
        2020-01-01 open Liabilities:CreditCard
          transfer-converted: TRUE
        2020-01-01 open Expenses:Taxi

        2020-03-15 * "Taxi home from concert in Brooklyn" ^taxi
          Assets:Checking  -25.60 CAD
          Expenses:Taxi  20 USD @ 1.28 CAD
            transfer-account: Liabilities:CreditCard
            transfer-date: 2020-03-10
        '''
        self.assertEqualEntries('''
        plugin "beancount_extras_kris7t.plugins.transfer_accounts"

        2020-01-01 open Assets:Checking
        2020-01-01 open Liabilities:CreditCard
        2020-01-01 open Expenses:Taxi

        2020-03-15 * "Taxi home from concert in Brooklyn" ^taxi
          Assets:Checking  -25.60 CAD
          Liabilities:CreditCard  20 USD @ 1.28 CAD

        2020-03-10 * "Taxi home from concert in Brooklyn" ^taxi
          Expenses:Taxi  20 USD
          Liabilities:CreditCard  -20 USD
        ''', entries)

    @loader.load_doc()
    def test_converted_cost_false(self, entries, _, __):
        '''
        plugin "beancount_extras_kris7t.plugins.transfer_accounts"

        2020-01-01 open Assets:Checking
        2020-01-01 open Liabilities:CreditCard
        2020-01-01 open Expenses:Taxi

        2020-03-15 * "Taxi home from concert in Brooklyn" ^taxi
          Assets:Checking  -25.60 CAD
          Expenses:Taxi  20 USD {1.28 CAD}
            transfer-account: Liabilities:CreditCard
            transfer-date: 2020-03-10
            transfer-converted: FALSE
        '''
        self.assertEqualEntries('''
        plugin "beancount_extras_kris7t.plugins.transfer_accounts"

        2020-01-01 open Assets:Checking
        2020-01-01 open Liabilities:CreditCard
        2020-01-01 open Expenses:Taxi

        2020-03-15 * "Taxi home from concert in Brooklyn" ^taxi
          Assets:Checking  -25.60 CAD
          Liabilities:CreditCard  25.60 CAD

        2020-03-10 * "Taxi home from concert in Brooklyn" ^taxi
          Expenses:Taxi  20 USD {1.28 CAD, 2020-03-15}
          Liabilities:CreditCard  -25.60 CAD
        ''', entries)

    @loader.load_doc()
    def test_converted_cost_true(self, entries, _, __):
        '''
        plugin "beancount_extras_kris7t.plugins.transfer_accounts"

        2020-01-01 open Assets:Checking
        2020-01-01 open Liabilities:CreditCard
        2020-01-01 open Expenses:Taxi

        2020-03-15 * "Taxi home from concert in Brooklyn" ^taxi
          Assets:Checking  -25.60 CAD
          Expenses:Taxi  20 USD {1.28 CAD}
            transfer-account: Liabilities:CreditCard
            transfer-date: 2020-03-10
            transfer-converted: TRUE
        '''
        self.assertEqualEntries('''
        plugin "beancount_extras_kris7t.plugins.transfer_accounts"

        2020-01-01 open Assets:Checking
        2020-01-01 open Liabilities:CreditCard
        2020-01-01 open Expenses:Taxi

        2020-03-15 * "Taxi home from concert in Brooklyn" ^taxi
          Assets:Checking  -25.60 CAD
          Liabilities:CreditCard  20 USD {1.28 CAD, 2020-03-15}

        2020-03-10 * "Taxi home from concert in Brooklyn" ^taxi
          Expenses:Taxi  20 USD {1.28 CAD, 2020-03-15}
          Liabilities:CreditCard  -20 USD {1.28 CAD, 2020-03-15}
        ''', entries)

    @loader.load_doc()
    def test_converted_cost_and_price_false(self, entries, _, __):
        '''
        plugin "beancount_extras_kris7t.plugins.transfer_accounts"

        2020-01-01 open Assets:Checking
        2020-01-01 open Liabilities:CreditCard
        2020-01-01 open Expenses:Taxi

        2020-03-15 * "Taxi home from concert in Brooklyn" ^taxi
          Assets:Checking  -25.60 CAD
          Expenses:Taxi  20 USD {1.28 CAD} @ 1.30 CAD
            transfer-account: Liabilities:CreditCard
            transfer-date: 2020-03-10
            transfer-converted: FALSE
        '''
        self.assertEqualEntries('''
        plugin "beancount_extras_kris7t.plugins.transfer_accounts"

        2020-01-01 open Assets:Checking
        2020-01-01 open Liabilities:CreditCard
        2020-01-01 open Expenses:Taxi

        2020-03-15 * "Taxi home from concert in Brooklyn" ^taxi
          Assets:Checking  -25.60 CAD
          Liabilities:CreditCard  25.60 CAD

        2020-03-10 * "Taxi home from concert in Brooklyn" ^taxi
          Expenses:Taxi  20 USD {1.28 CAD, 2020-03-15} @ 1.30 CAD
          Liabilities:CreditCard  -25.60 CAD
        ''', entries)

    @loader.load_doc()
    def test_converted_cost_and_price_true(self, entries, _, __):
        '''
        plugin "beancount_extras_kris7t.plugins.transfer_accounts"

        2020-01-01 open Assets:Checking
        2020-01-01 open Liabilities:CreditCard
        2020-01-01 open Expenses:Taxi

        2020-03-15 * "Taxi home from concert in Brooklyn" ^taxi
          Assets:Checking  -25.60 CAD
          Expenses:Taxi  20 USD {1.28 CAD} @ 1.30 CAD
            transfer-account: Liabilities:CreditCard
            transfer-date: 2020-03-10
            transfer-converted: TRUE
        '''
        self.assertEqualEntries('''
        plugin "beancount_extras_kris7t.plugins.transfer_accounts"

        2020-01-01 open Assets:Checking
        2020-01-01 open Liabilities:CreditCard
        2020-01-01 open Expenses:Taxi

        2020-03-15 * "Taxi home from concert in Brooklyn" ^taxi
          Assets:Checking  -25.60 CAD
          Liabilities:CreditCard  20 USD {1.28 CAD, 2020-03-15} @ 1.30 CAD

        2020-03-10 * "Taxi home from concert in Brooklyn" ^taxi
          Expenses:Taxi  20 USD {1.28 CAD, 2020-03-15}
          Liabilities:CreditCard  -20 USD {1.28 CAD, 2020-03-15}
        ''', entries)

    @loader.load_doc()
    def test_multiple_separate(self, entries, _, __):
        '''
        plugin "beancount_extras_kris7t.plugins.transfer_accounts"

        2020-01-01 open Assets:Checking
        2020-01-01 open Liabilities:CreditCard
        2020-01-01 open Expenses:Taxi
        2020-01-01 open Expenses:Food

        2020-03-15 * "Night out in Brooklyn" ^taxi
          Assets:Checking  -45 USD
          Expenses:Taxi  20 USD
            transfer-account: Liabilities:CreditCard
            transfer-date: 2020-03-10
          Expenses:Food  25 USD
            transfer-account: Liabilities:CreditCard
            transfer-date: 2020-03-12
        '''
        self.assertEqualEntries('''
        plugin "beancount_extras_kris7t.plugins.transfer_accounts"

        2020-01-01 open Assets:Checking
        2020-01-01 open Liabilities:CreditCard
        2020-01-01 open Expenses:Taxi
        2020-01-01 open Expenses:Food

        2020-03-15 * "Night out in Brooklyn" ^taxi
          Assets:Checking  -45 USD
          Liabilities:CreditCard  45 USD

        2020-03-10 * "Night out in Brooklyn" ^taxi
          Expenses:Taxi  20 USD
          Liabilities:CreditCard  -20 USD

        2020-03-12 * "Night out in Brooklyn" ^taxi
          Expenses:Food  25 USD
          Liabilities:CreditCard  -25 USD
        ''', entries)

    @loader.load_doc()
    def test_multiple_merge(self, entries, _, __):
        '''
        plugin "beancount_extras_kris7t.plugins.transfer_accounts"

        2020-01-01 open Assets:Checking
        2020-01-01 open Liabilities:CreditCard
        2020-01-01 open Expenses:Taxi
        2020-01-01 open Expenses:Food

        2020-03-15 * "Night out in Brooklyn" ^taxi
          Assets:Checking  -45 USD
          Expenses:Taxi  20 USD
            transfer-account: Liabilities:CreditCard
            transfer-date: 2020-03-10
          Expenses:Food  25 USD
            transfer-account: Liabilities:CreditCard
            transfer-date: 2020-03-10
        '''
        self.assertEqualEntries('''
        plugin "beancount_extras_kris7t.plugins.transfer_accounts"

        2020-01-01 open Assets:Checking
        2020-01-01 open Liabilities:CreditCard
        2020-01-01 open Expenses:Taxi
        2020-01-01 open Expenses:Food

        2020-03-15 * "Night out in Brooklyn" ^taxi
          Assets:Checking  -45 USD
          Liabilities:CreditCard  45 USD

        2020-03-10 * "Night out in Brooklyn" ^taxi
          Expenses:Taxi  20 USD
          Expenses:Food  25 USD
          Liabilities:CreditCard  -45 USD
        ''', entries)

    @loader.load_doc()
    def test_multiple_currencies_merge_converted_false(self, entries, _, __):
        '''
        plugin "beancount_extras_kris7t.plugins.transfer_accounts"

        2020-01-01 open Assets:Checking
        2020-01-01 open Liabilities:CreditCard
        2020-01-01 open Expenses:Taxi
        2020-01-01 open Expenses:Food

        2020-03-15 * "Night out in Brooklyn" ^taxi
          Assets:Checking  -50.60 CAD
          Expenses:Taxi  20 USD @ 1.28 CAD
            transfer-account: Liabilities:CreditCard
            transfer-date: 2020-03-10
            transfer-converted: FALSE
          Expenses:Food  25 CAD
            transfer-account: Liabilities:CreditCard
            transfer-date: 2020-03-10
        '''
        self.assertEqualEntries('''
        plugin "beancount_extras_kris7t.plugins.transfer_accounts"

        2020-01-01 open Assets:Checking
        2020-01-01 open Liabilities:CreditCard
        2020-01-01 open Expenses:Taxi
        2020-01-01 open Expenses:Food

        2020-03-15 * "Night out in Brooklyn" ^taxi
          Assets:Checking  -50.60 CAD
          Liabilities:CreditCard  50.60 CAD

        2020-03-10 * "Night out in Brooklyn" ^taxi
          Expenses:Taxi  20 USD @ 1.28 CAD
          Expenses:Food  25 CAD
          Liabilities:CreditCard  -50.60 CAD
        ''', entries)

    @loader.load_doc()
    def test_multiple_currencies_merge_converted_true(self, entries, _, __):
        '''
        plugin "beancount_extras_kris7t.plugins.transfer_accounts"

        2020-01-01 open Assets:Checking
        2020-01-01 open Liabilities:CreditCard
        2020-01-01 open Expenses:Taxi
        2020-01-01 open Expenses:Food

        2020-03-15 * "Night out in Brooklyn" ^taxi
          Assets:Checking  -50.60 CAD
          Expenses:Taxi  20 USD @ 1.28 CAD
            transfer-account: Liabilities:CreditCard
            transfer-date: 2020-03-10
            transfer-converted: TRUE
          Expenses:Food  25 CAD
            transfer-account: Liabilities:CreditCard
            transfer-date: 2020-03-10
        '''
        self.assertEqualEntries('''
        plugin "beancount_extras_kris7t.plugins.transfer_accounts"

        2020-01-01 open Assets:Checking
        2020-01-01 open Liabilities:CreditCard
        2020-01-01 open Expenses:Taxi
        2020-01-01 open Expenses:Food

        2020-03-15 * "Night out in Brooklyn" ^taxi
          Assets:Checking  -50.60 CAD
          Liabilities:CreditCard  20 USD @ 1.28 CAD
          Liabilities:CreditCard  25 CAD

        2020-03-10 * "Night out in Brooklyn" ^taxi
          Expenses:Taxi  20 USD
          Expenses:Food  25 CAD
          Liabilities:CreditCard  -20 USD
          Liabilities:CreditCard  -25 CAD
        ''', entries)


if __name__ == '__main__':
    unittest.main()