prvi kod za live uporabu

backend/modules/invoicing/tests/test_services.py

@@ -0,0 +1,40 @@
+from django.test import TestCase
+from django.contrib.auth import get_user_model
+from datetime import date
+from decimal import Decimal
+
+from modules.crm.models import Client
+from modules.invoicing.models import Invoice, InvoiceItem
+from modules.invoicing.services import InvoiceService
+
+
+class InvoiceServiceTests(TestCase):
+    def setUp(self):
+        User = get_user_model()
+        self.creator = User.objects.create_user(username="creator", email="c@example.com", password="pass")
+        self.client = Client.objects.create(name="Test Client")
+
+    def test_create_full_invoice_creates_invoice_and_items(self):
+        items = [
+            {"description": "Item A", "quantity": Decimal("2.00"), "unit_price": Decimal("10.00")},
+            {"description": "Item B", "quantity": Decimal("1.00"), "unit_price": Decimal("5.50")},
+        ]
+        validated_data = {
+            "client": self.client,
+            "due_date": date.today(),
+            "items": items,
+        }
+
+        invoice = InvoiceService.create_full_invoice(user=self.creator, **validated_data)
+
+        # Basic assertions
+        self.assertIsInstance(invoice, Invoice)
+        self.assertEqual(invoice.creator, self.creator)
+        self.assertEqual(invoice.client, self.client)
+        self.assertEqual(invoice.items.count(), 2)
+
+        # Total should be 2*10 + 1*5.5 = 25.5
+        self.assertEqual(invoice.amount, Decimal("25.50"))
+        item_descriptions = [i.description for i in invoice.items.all()]
+        self.assertIn("Item A", item_descriptions)
+        self.assertIn("Item B", item_descriptions)