init project tests
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Maximilian
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test/unit/test_costs_models.py
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test/unit/test_costs_models.py
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"""
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Unit tests for Costs models.
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"""
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import pytest
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from django.test import TestCase
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from django.core.exceptions import ValidationError
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from django.contrib.auth.models import User
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from django.utils import timezone
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from django.db import models
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from decimal import Decimal
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from costs.models import Costs
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from bird.models import Bird, BirdStatus, Circumstance
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from aviary.models import Aviary
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class CostsModelTests(TestCase):
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"""Test cases for Costs model."""
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def setUp(self):
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"""Set up test data."""
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self.user = User.objects.create_user(
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username='testuser',
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email='test@example.com',
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password='testpass123'
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)
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self.aviary = Aviary.objects.create(
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name="Test Aviary",
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location="Test Location",
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created_by=self.user
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)
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self.bird_status = BirdStatus.objects.create(
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name="Gesund",
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description="Healthy bird"
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)
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self.circumstance = Circumstance.objects.create(
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name="Gefunden",
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description="Found bird"
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)
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self.bird = Bird.objects.create(
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name="Test Bird",
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species="Test Species",
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aviary=self.aviary,
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status=self.bird_status,
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circumstance=self.circumstance,
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created_by=self.user
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)
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self.costs = Costs.objects.create(
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bird=self.bird,
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description="Veterinary treatment",
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amount=Decimal('150.75'),
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cost_date=timezone.now().date(),
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category="medical",
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invoice_number="INV-001",
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vendor="Test Veterinary Clinic",
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notes="Routine checkup and treatment",
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user=self.user,
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created_by=self.user
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)
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def test_costs_creation(self):
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"""Test that a cost entry can be created."""
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self.assertTrue(isinstance(self.costs, Costs))
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self.assertEqual(self.costs.bird, self.bird)
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self.assertEqual(self.costs.description, "Veterinary treatment")
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self.assertEqual(self.costs.amount, Decimal('150.75'))
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self.assertEqual(self.costs.category, "medical")
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self.assertEqual(self.costs.invoice_number, "INV-001")
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self.assertEqual(self.costs.vendor, "Test Veterinary Clinic")
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self.assertEqual(self.costs.notes, "Routine checkup and treatment")
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def test_costs_str_representation(self):
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"""Test the string representation of costs."""
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expected = f"{self.costs.description} - €{self.costs.amount}"
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self.assertEqual(str(self.costs), expected)
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def test_costs_amount_validation(self):
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"""Test that cost amount is validated."""
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# Test negative amount
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with self.assertRaises(ValidationError):
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costs = Costs(
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bird=self.bird,
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description="Invalid cost",
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amount=Decimal('-10.00'),
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cost_date=timezone.now().date(),
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user=self.user,
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created_by=self.user
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)
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costs.full_clean()
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# Test zero amount (should be valid)
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costs = Costs(
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bird=self.bird,
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description="Zero cost",
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amount=Decimal('0.00'),
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cost_date=timezone.now().date(),
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user=self.user,
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created_by=self.user
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)
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costs.full_clean() # Should not raise validation error
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def test_costs_category_choices(self):
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"""Test that cost category has valid choices."""
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valid_categories = ['medical', 'food', 'equipment', 'transport', 'other']
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self.assertIn(self.costs.category, valid_categories)
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# Test invalid category
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with self.assertRaises(ValidationError):
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costs = Costs(
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bird=self.bird,
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description="Invalid category",
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amount=Decimal('10.00'),
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category="invalid_category",
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cost_date=timezone.now().date(),
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user=self.user,
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created_by=self.user
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)
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costs.full_clean()
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def test_costs_required_fields(self):
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"""Test that required fields are validated."""
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with self.assertRaises(ValidationError):
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costs = Costs()
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costs.full_clean()
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def test_costs_relationship(self):
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"""Test costs relationships."""
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self.assertEqual(self.costs.bird, self.bird)
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self.assertEqual(self.costs.created_by, self.user)
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def test_costs_date_validation(self):
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"""Test that cost date is validated."""
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# Test future date (should be valid unless restricted)
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future_date = timezone.now().date() + timezone.timedelta(days=30)
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costs = Costs(
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bird=self.bird,
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description="Future cost",
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amount=Decimal('50.00'),
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cost_date=future_date,
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user=self.user,
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created_by=self.user
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)
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costs.full_clean() # Should not raise validation error
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def test_costs_decimal_precision(self):
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"""Test decimal precision for amounts."""
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# Test 2 decimal place amount (model allows max 2 decimal places)
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precise_amount = Decimal('123.45')
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costs = Costs(
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bird=self.bird,
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description="Precise amount",
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amount=precise_amount,
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cost_date=timezone.now().date(),
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user=self.user,
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created_by=self.user
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)
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costs.full_clean()
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costs.save()
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# Reload from database and check precision
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costs.refresh_from_db()
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# Model supports 2 decimal places, should match exactly
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self.assertEqual(costs.amount, precise_amount)
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# Test that amounts with more than 2 decimal places are rejected
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with self.assertRaises(ValidationError):
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invalid_costs = Costs(
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bird=self.bird,
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description="Too precise amount",
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amount=Decimal('123.456'), # More than 2 decimal places
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cost_date=timezone.now().date(),
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user=self.user,
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created_by=self.user
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)
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invalid_costs.full_clean()
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def test_costs_filtering_by_category(self):
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"""Test filtering costs by category."""
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# Create costs in different categories
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Costs.objects.create(
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bird=self.bird,
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description="Food cost",
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amount=Decimal('25.00'),
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category="food",
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cost_date=timezone.now().date(),
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user=self.user,
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created_by=self.user
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)
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Costs.objects.create(
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bird=self.bird,
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description="Equipment cost",
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amount=Decimal('75.00'),
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category="equipment",
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cost_date=timezone.now().date(),
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user=self.user,
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created_by=self.user
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)
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# Filter by category
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medical_costs = Costs.objects.filter(category="medical")
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food_costs = Costs.objects.filter(category="food")
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equipment_costs = Costs.objects.filter(category="equipment")
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self.assertEqual(medical_costs.count(), 1)
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self.assertEqual(food_costs.count(), 1)
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self.assertEqual(equipment_costs.count(), 1)
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self.assertIn(self.costs, medical_costs)
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def test_costs_total_for_bird(self):
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"""Test calculating total costs for a bird."""
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# Create additional costs for the same bird
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Costs.objects.create(
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bird=self.bird,
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description="Additional cost 1",
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amount=Decimal('50.00'),
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cost_date=timezone.now().date(),
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user=self.user,
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created_by=self.user
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)
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Costs.objects.create(
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bird=self.bird,
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description="Additional cost 2",
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amount=Decimal('25.25'),
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cost_date=timezone.now().date(),
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user=self.user,
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created_by=self.user
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)
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# Calculate total costs for the bird
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total_costs = Costs.objects.filter(bird=self.bird).aggregate(
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total=models.Sum('amount')
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)['total']
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expected_total = Decimal('150.75') + Decimal('50.00') + Decimal('25.25')
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self.assertEqual(total_costs, expected_total)
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def test_costs_invoice_number_uniqueness(self):
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"""Test invoice number uniqueness if enforced."""
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# Try to create another cost with the same invoice number
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try:
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duplicate_costs = Costs(
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bird=self.bird,
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description="Duplicate invoice",
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amount=Decimal('10.00'),
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invoice_number="INV-001", # Same as self.costs
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cost_date=timezone.now().date(),
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user=self.user,
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created_by=self.user
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)
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duplicate_costs.full_clean()
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# If unique constraint exists, this should fail
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except ValidationError:
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# Expected if invoice_number has unique constraint
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pass
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