"""Unit tests: model __str__, serializer computed fields, view helpers. These exercise pure logic in isolation (no API client), complementing the endpoint-level tests in test_accounting.py and test_integration.py. """ import datetime from decimal import Decimal import pytest from apps.accounting.models import ( Account, Fund, Transaction, JournalEntry, JournalLine, ) from apps.accounting.serializers import FundSerializer, JournalEntrySerializer from apps.accounting import views from apps.companies.models import Organization @pytest.fixture def org(db): return Organization.objects.create(name="Test Org") @pytest.mark.django_db class TestModelStr: def test_account_str(self): a = Account(code="1000", name="Cash and Bank", type="Asset", normal_balance="Debit") assert str(a) == "1000 Cash and Bank" def test_fund_str(self): f = Fund(fund_id="FND-001", name="Community Health") assert str(f) == "FND-001 Community Health" def test_transaction_str_strips(self): t = Transaction(transaction_id="TRX-001", description="Grant receipt") assert str(t) == "TRX-001 Grant receipt" t2 = Transaction(transaction_id="TRX-002", description="") assert str(t2) == "TRX-002" def test_journal_entry_str(self): e = JournalEntry(journal_no="JV-007") assert str(e) == "JV-007" def test_journal_line_str(self, org): a = Account.objects.create(organization=org, code="1000", name="Cash", type="Asset", normal_balance="Debit") e = JournalEntry.objects.create(organization=org, journal_no="JV-1", date=datetime.date(2026, 1, 1)) line = JournalLine.objects.create(journal=e, account=a, debit_idr=100, credit_idr=0) assert "100" in str(line) @pytest.mark.django_db class TestJournalTotals: def test_totals_sum_lines(self, org): a = Account.objects.create(organization=org, code="1000", name="Cash", type="Asset", normal_balance="Debit") b = Account.objects.create(organization=org, code="4000", name="Income", type="Income", normal_balance="Credit") e = JournalEntry.objects.create(organization=org, journal_no="JV-1", date=datetime.date(2026, 1, 1)) JournalLine.objects.create(journal=e, account=a, debit_idr=500, credit_idr=0) JournalLine.objects.create(journal=e, account=b, debit_idr=0, credit_idr=500) debit, credit = e.totals() assert debit == Decimal("500") assert credit == Decimal("500") def test_empty_journal_totals_zero(self, org): e = JournalEntry.objects.create(organization=org, journal_no="JV-EMPTY", date=datetime.date(2026, 1, 1)) assert e.totals() == (Decimal("0"), Decimal("0")) @pytest.mark.django_db class TestFundSerializer: def test_donor_label_prefers_company_name(self, org): from apps.companies.models import Company c = Company.objects.create(organization=org, name="Global Health Foundation") f = Fund.objects.create(organization=org, fund_id="FND-1", name="Health", donor=c) data = FundSerializer(f).data assert data["donor_label"] == "Global Health Foundation" def test_donor_label_falls_back_to_free_text(self, org): f = Fund.objects.create(organization=org, fund_id="FND-2", name="Edu", donor_name="Education Alliance") data = FundSerializer(f).data assert data["donor_label"] == "Education Alliance" def test_available_uses_annotated_spent(self, org): f = Fund.objects.create(organization=org, fund_id="FND-3", name="Climate", received_amount=Decimal("1000")) f._spent = Decimal("300") data = FundSerializer(f).data assert Decimal(str(data["spent_amount"])) == Decimal("300") assert Decimal(str(data["available_amount"])) == Decimal("700") def test_available_defaults_when_unannotated(self, org): f = Fund.objects.create(organization=org, fund_id="FND-4", name="Ops", received_amount=Decimal("500")) data = FundSerializer(f).data assert Decimal(str(data["spent_amount"])) == Decimal("0") assert Decimal(str(data["available_amount"])) == Decimal("500") @pytest.mark.django_db class TestJournalEntrySerializerWrite: def _accounts(self, org): cash = Account.objects.create(organization=org, code="1000", name="Cash", type="Asset", normal_balance="Debit") exp = Account.objects.create(organization=org, code="5000", name="Expense", type="Expense", normal_balance="Debit") return cash, exp def test_create_builds_nested_lines(self, org): cash, exp = self._accounts(org) s = JournalEntrySerializer(data={ "journal_no": "JV-10", "date": "2026-01-01", "lines": [ {"account": str(exp.id), "debit_idr": "100", "credit_idr": "0"}, {"account": str(cash.id), "debit_idr": "0", "credit_idr": "100"}, ], }) assert s.is_valid(), s.errors entry = s.save(organization=org) assert entry.lines.count() == 2 assert entry.totals() == (Decimal("100"), Decimal("100")) def test_update_replaces_lines(self, org): cash, exp = self._accounts(org) entry = JournalEntry.objects.create(organization=org, journal_no="JV-11", date=datetime.date(2026, 1, 1)) JournalLine.objects.create(journal=entry, account=cash, debit_idr=999, credit_idr=0) s = JournalEntrySerializer(entry, data={ "journal_no": "JV-11", "date": "2026-01-01", "lines": [ {"account": str(exp.id), "debit_idr": "50", "credit_idr": "0"}, {"account": str(cash.id), "debit_idr": "0", "credit_idr": "50"}, ], }, partial=False) assert s.is_valid(), s.errors s.save() entry.refresh_from_db() assert entry.lines.count() == 2 # old 999 line gone assert entry.totals() == (Decimal("50"), Decimal("50")) def test_update_without_lines_keeps_them(self, org): cash, _ = self._accounts(org) entry = JournalEntry.objects.create(organization=org, journal_no="JV-12", date=datetime.date(2026, 1, 1)) JournalLine.objects.create(journal=entry, account=cash, debit_idr=7, credit_idr=0) s = JournalEntrySerializer(entry, data={"description": "renamed"}, partial=True) assert s.is_valid(), s.errors s.save() entry.refresh_from_db() assert entry.lines.count() == 1 assert entry.description == "renamed" class TestRestrictionHelper: """views._restriction_class is pure — no DB.""" def test_restricted_is_with(self): assert views._restriction_class("Restricted") == views.WITH @pytest.mark.parametrize("ftype", ["Unrestricted", "Designated", "", None]) def test_others_are_without(self, ftype): assert views._restriction_class(ftype) == views.WITHOUT