feat: backoffice setup

backoffice/tests/test_htmx.py

@@ -0,0 +1,134 @@
+import json
+from io import BytesIO
+
+from django.contrib.auth.models import User
+from django.core.files.base import ContentFile
+from django.test import TestCase
+from django.urls import reverse
+from PIL import Image
+
+from shop.models import Product, ProductImage, ProductVariant
+from shop.tests.mixins import CreateProductsMixin
+
+
+class TestBackofficeHtmxContract(TestCase, CreateProductsMixin):
+    def setUp(self):
+        self.superuser = User.objects.create_superuser('vader', 'vader@empire.com', 'ihatesand')
+        self.client.force_login(self.superuser)
+        self.product = self.create_product()
+
+    def test_htmx_get_create_form_returns_fragment_not_full_page(self):
+        response = self.client.get(reverse('backoffice:product_create'), HTTP_HX_REQUEST='true')
+        assert response.status_code == 200
+        body = response.content.decode()
+        assert '<html' not in body
+        assert 'Añadir producto' in body
+
+    def test_htmx_create_success_returns_204_and_triggers_modal_close_and_refresh(self):
+        response = self.client.post(
+            reverse('backoffice:product_create'),
+            {
+                'sku': 'HTMX-1',
+                'name': 'Producto htmx',
+                'description': '',
+                'stock': '0',
+                'categories': [],
+                'tags': [],
+            },
+            HTTP_HX_REQUEST='true',
+        )
+        assert response.status_code == 204
+        trigger = json.loads(response['HX-Trigger'])
+        assert trigger == {'backoffice:modal-close': True, 'backoffice:list-changed': True}
+        assert Product.objects.filter(sku='HTMX-1').exists()
+
+    def test_htmx_create_invalid_returns_200_with_errors_not_204(self):
+        response = self.client.post(
+            reverse('backoffice:product_create'),
+            {'sku': '', 'name': '', 'description': '', 'stock': '0', 'categories': [], 'tags': []},
+            HTTP_HX_REQUEST='true',
+        )
+        assert response.status_code == 200
+        assert 'HX-Trigger' not in response
+
+    def test_non_htmx_create_still_redirects(self):
+        response = self.client.post(
+            reverse('backoffice:product_create'),
+            {
+                'sku': 'PLAIN-1',
+                'name': 'Producto normal',
+                'description': '',
+                'stock': '0',
+                'categories': [],
+                'tags': [],
+            },
+        )
+        assert response.status_code == 302
+        assert 'HX-Trigger' not in response
+
+    def test_htmx_variant_create_triggers_refresh(self):
+        size_m = self.create_attribute_value('Talla', 'M')
+
+        response = self.client.post(
+            reverse('backoffice:product_variant_create', args=[self.product.pk]),
+            {'sku': 'HTMX-V1', 'stock': '5', 'attribute_values': [size_m.pk]},
+            HTTP_HX_REQUEST='true',
+        )
+        assert response.status_code == 204
+        trigger = json.loads(response['HX-Trigger'])
+        assert trigger['backoffice:modal-close'] is True
+        assert trigger['backoffice:list-changed'] is True
+        assert ProductVariant.objects.filter(sku='HTMX-V1').exists()
+
+    def test_htmx_variant_delete_stays_and_refreshes(self):
+        size_m = self.create_attribute_value('Talla', 'M')
+        variant = self.create_product_variant(self.product, sku='HTMX-V2', attribute_values=[size_m])
+
+        response = self.client.post(
+            reverse('backoffice:product_variant_delete', args=[variant.pk]), HTTP_HX_REQUEST='true'
+        )
+        assert response.status_code == 204
+        assert 'HX-Redirect' not in response
+        trigger = json.loads(response['HX-Trigger'])
+        assert trigger['backoffice:list-changed'] is True
+        assert not ProductVariant.objects.filter(pk=variant.pk).exists()
+
+    def test_htmx_image_upload_triggers_refresh(self):
+        image = Image.new('RGB', (64, 64), '#ACACAC')
+        buffer = BytesIO()
+        image.save(fp=buffer, format='WEBP')
+        file = ContentFile(buffer.getvalue(), name='test.webp')
+
+        response = self.client.post(
+            reverse('backoffice:product_image_create', args=[self.product.pk]),
+            {'original': file},
+            format='multipart',
+            HTTP_HX_REQUEST='true',
+        )
+        assert response.status_code == 204
+        trigger = json.loads(response['HX-Trigger'])
+        assert trigger == {'backoffice:modal-close': True, 'backoffice:list-changed': True}
+        assert ProductImage.objects.filter(product=self.product).exists()
+
+    def test_htmx_product_delete_uses_hx_redirect_instead_of_trigger(self):
+        product = self.create_product(sku='HTMX-DEL')
+
+        response = self.client.post(reverse('backoffice:product_delete', args=[product.pk]), HTTP_HX_REQUEST='true')
+        assert response.status_code == 200
+        assert response['HX-Redirect'] == reverse('backoffice:product_list')
+        assert 'HX-Trigger' not in response
+        assert not Product.objects.filter(pk=product.pk).exists()
+
+    def test_htmx_list_self_refresh_returns_fragment(self):
+        response = self.client.get(reverse('backoffice:product_list'), HTTP_HX_REQUEST='true')
+        assert response.status_code == 200
+        body = response.content.decode()
+        assert '<html' not in body
+        assert 'id="backoffice-list"' in body
+
+    def test_htmx_product_detail_self_refresh_returns_fragment(self):
+        response = self.client.get(reverse('backoffice:product_detail', args=[self.product.pk]), HTTP_HX_REQUEST='true')
+        assert response.status_code == 200
+        body = response.content.decode()
+        assert '<html' not in body
+        assert 'id="backoffice-detail"' in body