Fix chapter 8 - NoMethodError undefined method products (#59)

Author: notapatch

rails6/en/chapter08-improve-orders.adoc

@@ -148,7 +148,7 @@ First we update the `orders_controller_test` file:
 # ...
 class Api::V1::OrdersControllerTest < ActionDispatch::IntegrationTest
   setup do
-    @order = products(:one)
+    @order = orders(:one)
     @order_params = {
       order: {
         product_ids_and_quantities: [

rails6/es/chapter08-improve-orders.adoc

@@ -149,7 +149,7 @@ Primero actualizamos el archivo `orders_controller_test`:
 # ...
 class Api::V1::OrdersControllerTest < ActionDispatch::IntegrationTest
   setup do
-    @order = products(:one)
+    @order = orders(:one)
     @order_params = {
       order: {
         product_ids_and_quantities: [

rails6/fr/chapter08-improve-orders.adoc

@@ -144,7 +144,7 @@ Tout d'abord, nous mettons à jour le fichier `orders_controller_test`:
 # ...
 class Api::V1::OrdersControllerTest < ActionDispatch::IntegrationTest
   setup do
-    @order = products(:one)
+    @order = orders(:one)
     @order_params = {
       order: {
         product_ids_and_quantities: [