Feat: Export Ventas Para Tryton

tienda_ilusion/don_confiao/tests/Fixtures/sales_fixture.json

@@ -11,7 +11,7 @@
     "model": "don_confiao.productcategory",
     "pk": 1,
     "fields": {
-      "name": "Unidad",
+      "name": "Unidad"
     }
   },
   {
@@ -20,7 +20,7 @@
     "fields": {
       "name": "Papaya",
       "price": 2500,
-      "measuring_unit": "Unidad",
+      "measuring_unit": "Unidad"
     }
   },
   {
@@ -32,5 +32,16 @@
       "phone": 312201103,
       "description": "Primera Venta"
     }
-  }
+  },
+    {
+        "model": "don_confiao.saleline",
+        "pk": 1,
+        "fields": {
+            "sale": 1,
+            "product": 1,
+            "quantity": 10,
+            "unit_price": 5000,
+            "description": "Primer Sale Line"
+        }
+    }
 ]

tienda_ilusion/don_confiao/tests/test_export_sales.py

@@ -1,16 +1,50 @@
 #!/usr/bin/env python3
-from django.test import TestCase
-from ..models import Sale
+from django.test import Client, TestCase
+from io import StringIO
+import csv
 
 
 class TestExportSales(TestCase):
+    fixtures = ['sales_fixture']
 
     def setUp(self):
-        pass
+        self.client = Client()
 
     def test_export_sales(self):
-        sales = self._export_sales_csv()
-        self.assertEqual(len(sales), 1)
+        sales_response = self._export_sales_csv()
+        filename = sales_response.headers[
+            'Content-Disposition'].split('; ')[1].strip('filename=').strip("'")
+        content = sales_response.content
+        content_str = content.decode('utf-8')
+        csv_file = StringIO(content_str)
+        header = next(csv.reader(csv_file))
+
+        self.assertGreater(len(content), 0)
+        self.assertEqual(filename, 'sales.csv')
+        self.assertEqual(sales_response.headers['Content-Type'], 'text/csv')
+        self.assertEqual(header, self._tryton_sale_header())
 
     def _export_sales_csv(self):
-        raise Exception(Sale.objects.all())
+        return self.client.get("/don_confiao/exportar_ventas_para_tryton")
+
+    def _tryton_sale_header(self):
+        return [
+            "Tercero",
+            "Dirección de facturación",
+            "Dirección de envío",
+            "Descripción",
+            "Referencia",
+            "Fecha venta",
+            "Plazo de pago",
+            "Almacén",
+            "Moneda",
+            "Líneas/Producto",
+            "Líneas/Cantidad",
+            "Líneas/Precio unitario",
+            "Líneas/Unidad",
+            "Empresa",
+            "Tienda",
+            "Terminal de venta",
+            "Autorecogida",
+            "Comentario"
+                ]