test(breads): add ordering and sort_order field tests (#565)

Author: Mohit-Lakra

bakerydemo/breads/tests.py

@@ -0,0 +1,71 @@
+from django.test import TestCase
+
+from bakerydemo.breads.models import BreadIngredient, Country
+
+
+class CountryModelTest(TestCase):
+    """Test Country model ordering and sort_order field."""
+
+    def test_country_has_sort_order_field(self):
+        """Test that Country model has sort_order field."""
+        country = Country(title="Test Country", sort_order=10)
+        country.save()
+        self.assertEqual(country.sort_order, 10)
+
+    def test_country_ordering_respects_sort_order(self):
+        """Test that Country model ordering includes sort_order."""
+        Country.objects.create(title="Country A", sort_order=20)
+        Country.objects.create(title="Country B", sort_order=10)
+        Country.objects.create(title="Country C", sort_order=30)
+
+        countries = list(Country.objects.all())
+        self.assertEqual(countries[0].title, "Country B")
+        self.assertEqual(countries[1].title, "Country A")
+        self.assertEqual(countries[2].title, "Country C")
+
+    def test_country_ordering_with_null_sort_order(self):
+        """Test that Country with null sort_order is ordered by title."""
+        Country.objects.create(title="AAA", sort_order=None)
+        Country.objects.create(title="BBB", sort_order=10)
+        Country.objects.create(title="CCC", sort_order=None)
+
+        countries = list(Country.objects.all())
+        # NULL sort_order values come first in SQL, then ordered by title
+        # Then items with sort_order
+        self.assertEqual(countries[0].title, "AAA")
+        self.assertEqual(countries[1].title, "CCC")
+        self.assertEqual(countries[2].title, "BBB")
+
+
+class BreadIngredientModelTest(TestCase):
+    """Test BreadIngredient model ordering and sort_order field."""
+
+    def test_ingredient_has_sort_order_field(self):
+        """Test that BreadIngredient model has sort_order field."""
+        ingredient = BreadIngredient(name="Test Ingredient", sort_order=10)
+        ingredient.save()
+        self.assertEqual(ingredient.sort_order, 10)
+
+    def test_ingredient_ordering_respects_sort_order(self):
+        """Test that BreadIngredient model ordering includes sort_order."""
+        BreadIngredient.objects.create(name="Ingredient A", sort_order=20)
+        BreadIngredient.objects.create(name="Ingredient B", sort_order=10)
+        BreadIngredient.objects.create(name="Ingredient C", sort_order=30)
+
+        ingredients = list(BreadIngredient.objects.all())
+        self.assertEqual(ingredients[0].name, "Ingredient B")
+        self.assertEqual(ingredients[1].name, "Ingredient A")
+        self.assertEqual(ingredients[2].name, "Ingredient C")
+
+    def test_ingredient_ordering_with_null_sort_order(self):
+        """Test that BreadIngredient with null sort_order is ordered by name."""
+        BreadIngredient.objects.create(name="AAA", sort_order=None)
+        BreadIngredient.objects.create(name="BBB", sort_order=10)
+        BreadIngredient.objects.create(name="CCC", sort_order=None)
+
+        ingredients = list(BreadIngredient.objects.all())
+        # NULL sort_order values come first in SQL, then ordered by name
+        # Then items with sort_order
+        self.assertEqual(ingredients[0].name, "AAA")
+        self.assertEqual(ingredients[1].name, "CCC")
+        self.assertEqual(ingredients[2].name, "BBB")