Add form to add multiple things to a box

boxes/tests.py

@@ -663,3 +663,126 @@ class SearchApiTests(TestCase):
         results = response.json()['results']
         self.assertEqual(results[0]['type'], 'Electronics')
         self.assertEqual(results[0]['box'], 'BOX001')
+
+
+class AddThingsViewTests(TestCase):
+    """Tests for add things view."""
+
+    def setUp(self):
+        """Set up test fixtures."""
+        self.client = Client()
+        self.box_type = BoxType.objects.create(
+            name='Standard Box',
+            width=200,
+            height=100,
+            length=300
+        )
+        self.box = Box.objects.create(
+            id='BOX001',
+            box_type=self.box_type
+        )
+        self.thing_type = ThingType.objects.create(name='Electronics')
+
+    def test_add_things_get_request(self):
+        """Add things page should return 200 for GET request."""
+        response = self.client.get(f'/box/{self.box.id}/add/')
+        self.assertEqual(response.status_code, 200)
+
+    def test_add_things_shows_box_id(self):
+        """Add things page should show box ID."""
+        response = self.client.get(f'/box/{self.box.id}/add/')
+        self.assertContains(response, 'BOX001')
+        self.assertContains(response, 'Standard Box')
+
+    def test_add_things_shows_form(self):
+        """Add things page should show form."""
+        response = self.client.get(f'/box/{self.box.id}/add/')
+        self.assertContains(response, 'Save Things')
+        self.assertContains(response, 'Name')
+        self.assertContains(response, 'Type')
+        self.assertContains(response, 'Description')
+        self.assertContains(response, 'Picture')
+
+    def test_add_things_post_valid(self):
+        """Adding valid things should redirect to box detail."""
+        response = self.client.post(f'/box/{self.box.id}/add/', {
+            'form-TOTAL_FORMS': '3',
+            'form-0-name': 'Arduino Uno',
+            'form-0-thing_type': self.thing_type.id,
+            'form-0-description': 'A microcontroller',
+            'form-1-name': 'LED Strip',
+            'form-1-thing_type': self.thing_type.id,
+            'form-1-description': 'Lighting component',
+        })
+        self.assertRedirects(response, f'/box/{self.box.id}/')
+        self.assertEqual(Thing.objects.count(), 2)
+
+    def test_add_things_post_required_name(self):
+        """Adding things without name should show error."""
+        response = self.client.post(f'/box/{self.box.id}/add/', {
+            'form-TOTAL_FORMS': '2',
+            'form-0-thing_type': self.thing_type.id,
+            'form-1-thing_type': self.thing_type.id,
+        })
+        self.assertEqual(response.status_code, 200)
+        self.assertContains(response, 'This field is required')
+
+    def test_add_things_post_partial_valid_invalid(self):
+        """Partial submission: one valid, one missing name."""
+        response = self.client.post(f'/box/{self.box.id}/add/', {
+            'form-TOTAL_FORMS': '2',
+            'form-0-name': 'Arduino Uno',
+            'form-0-thing_type': self.thing_type.id,
+            'form-1-thing_type': self.thing_type.id,
+        })
+        self.assertEqual(response.status_code, 200)
+        self.assertContains(response, 'This field is required')
+        self.assertEqual(Thing.objects.count(), 1)
+
+    def test_add_things_creates_thing_types(self):
+        """Can create new thing types while adding things."""
+        new_type = ThingType.objects.create(name='Components')
+        response = self.client.post(f'/box/{self.box.id}/add/', {
+            'form-TOTAL_FORMS': '2',
+            'form-0-name': 'Resistor',
+            'form-0-thing_type': new_type.id,
+            'form-1-name': 'Capacitor',
+            'form-1-thing_type': new_type.id,
+        })
+        self.assertRedirects(response, f'/box/{self.box.id}/')
+        self.assertEqual(Thing.objects.count(), 2)
+        self.assertEqual(Thing.objects.filter(thing_type=new_type).count(), 2)
+
+    def test_add_things_empty_all(self):
+        """Submitting empty forms should not create anything."""
+        response = self.client.post(f'/box/{self.box.id}/add/', {
+            'form-TOTAL_FORMS': '2',
+            'form-0-name': '',
+            'form-0-thing_type': self.thing_type.id,
+            'form-1-name': '',
+            'form-1-thing_type': self.thing_type.id,
+        })
+        self.assertRedirects(response, f'/box/{self.box.id}/')
+        self.assertEqual(Thing.objects.count(), 0)
+
+    def test_add_things_box_not_exists(self):
+        """Adding things to non-existent box should return 404."""
+        response = self.client.get('/box/INVALID/add/')
+        self.assertEqual(response.status_code, 404)
+
+    def test_add_things_populates_box(self):
+        """Created things should be assigned to the correct box."""
+        self.thing_type_2 = ThingType.objects.create(name='Mechanical')
+        response = self.client.post(f'/box/{self.box.id}/add/', {
+            'form-TOTAL_FORMS': '3',
+            'form-0-name': 'Bolt',
+            'form-0-thing_type': self.thing_type_2.id,
+            'form-1-name': 'Nut',
+            'form-1-thing_type': self.thing_type_2.id,
+            'form-2-name': 'Washer',
+            'form-2-thing_type': self.thing_type_2.id,
+        })
+        self.assertRedirects(response, f'/box/{self.box.id}/')
+        things = Thing.objects.all()
+        for thing in things:
+            self.assertEqual(thing.box, self.box)