Merge pull request saleor#1876 from elwoodxblues/api-products-ordering

Test sorting products by price

tests/test_graphql.py

@@ -3,8 +3,8 @@
 import graphene
 import pytest
 from django.shortcuts import reverse
-
 from saleor.product.models import Category, Product, ProductAttribute
+from prices import Money
 
 from .utils import get_graphql_content
 
@@ -234,6 +234,49 @@ def test_filter_product_by_attributes(client, product_in_stock):
     assert product_data['name'] == product_in_stock.name
 
 
+def test_sort_products(client, product_in_stock):
+    # set price of the first product
+    product_in_stock.price = Money('10.00', 'USD')
+    product_in_stock.save()
+
+    # create the second product with higher price
+    product_in_stock.pk = None
+    product_in_stock.price = Money('20.00', 'USD')
+    product_in_stock.save()
+
+    query = '''
+    query {
+        products(sortBy: "%(sort_by)s") {
+            edges {
+                node {
+                    price {
+                        amount
+                    }
+                }
+            }
+        }
+    }
+    '''
+
+    asc_price_query = query % {'sort_by': 'price'}
+    response = client.post(reverse('api'), {'query': asc_price_query})
+    content = get_graphql_content(response)
+    assert 'errors' not in content
+    product_data = content['data']['products']['edges'][0]['node']
+    price_0 = content['data']['products']['edges'][0]['node']['price']['amount']
+    price_1 = content['data']['products']['edges'][1]['node']['price']['amount']
+    assert price_0 < price_1
+
+    desc_price_query = query % {'sort_by': '-price'}
+    response = client.post(reverse('api'), {'query': desc_price_query})
+    content = get_graphql_content(response)
+    assert 'errors' not in content
+    product_data = content['data']['products']['edges'][0]['node']
+    price_0 = content['data']['products']['edges'][0]['node']['price']['amount']
+    price_1 = content['data']['products']['edges'][1]['node']['price']['amount']
+    assert price_0 > price_1
+
+
 def test_attributes_query(client, product_in_stock):
     attributes = ProductAttribute.objects.prefetch_related('values')
     query = '''