API: Allow to simulate orders

src/tests/api/test_orders.py

@@ -19,7 +19,7 @@ from pretix.base.models import (
     InvoiceAddress, Order, OrderPosition, Question, SeatingPlan,
 )
 from pretix.base.models.orders import (
-    CartPosition, OrderFee, OrderPayment, OrderRefund,
+    CartPosition, OrderFee, OrderPayment, OrderRefund, QuestionAnswer,
 )
 from pretix.base.services.invoices import (
     generate_cancellation, generate_invoice,
@@ -1539,6 +1539,111 @@ def test_order_create(token_client, organizer, event, item, quota, question):
     assert answ.answer == "S"
 
 
+@pytest.mark.django_db
+def test_order_create_simulate(token_client, organizer, event, item, quota, question):
+    res = copy.deepcopy(ORDER_CREATE_PAYLOAD)
+    question.type = Question.TYPE_CHOICE_MULTIPLE
+    question.save()
+    with scopes_disabled():
+        opt = question.options.create(answer="L")
+    res['positions'][0]['item'] = item.pk
+    res['positions'][0]['answers'][0]['question'] = question.pk
+    res['positions'][0]['answers'][0]['options'] = [opt.pk]
+    res['simulate'] = True
+    resp = token_client.post(
+        '/api/v1/organizers/{}/events/{}/orders/'.format(
+            organizer.slug, event.slug
+        ), format='json', data=res
+    )
+    assert resp.status_code == 201
+    with scopes_disabled():
+        assert Order.objects.count() == 0
+        assert QuestionAnswer.objects.count() == 0
+        assert OrderPosition.objects.count() == 0
+        assert OrderFee.objects.count() == 0
+        assert InvoiceAddress.objects.count() == 0
+    d = resp.data
+    del d['last_modified']
+    del d['secret']
+    del d['url']
+    del d['expires']
+    del d['invoice_address']['last_modified']
+    del d['positions'][0]['secret']
+    assert d == {
+        'code': 'PREVIEW',
+        'status': 'n',
+        'testmode': False,
+        'email': 'dummy@dummy.test',
+        'locale': 'en',
+        'datetime': None,
+        'payment_date': None,
+        'payment_provider': None,
+        'fees': [
+            {
+                'fee_type': 'payment',
+                'value': '0.25',
+                'description': '',
+                'internal_type': '',
+                'tax_rate': '0.00',
+                'tax_value': '0.00',
+                'tax_rule': None,
+                'canceled': False
+            }
+        ],
+        'total': '23.25',
+        'comment': '',
+        'invoice_address': {
+            'is_business': False,
+            'company': 'Sample company',
+            'name': 'Fo',
+            'name_parts': {'full_name': 'Fo', '_scheme': 'full'},
+            'street': 'Bar',
+            'zipcode': '',
+            'city': 'Sample City',
+            'country': 'NZ',
+            'state': '',
+            'vat_id': '',
+            'vat_id_validated': False,
+            'internal_reference': ''
+        },
+        'positions': [
+            {
+                'id': 0,
+                'order': '',
+                'positionid': 1,
+                'item': 1,
+                'variation': None,
+                'price': '23.00',
+                'attendee_name': 'Peter',
+                'attendee_name_parts': {'full_name': 'Peter', '_scheme': 'full'},
+                'attendee_email': None,
+                'voucher': None,
+                'tax_rate': '0.00',
+                'tax_value': '0.00',
+                'addon_to': None,
+                'subevent': None,
+                'checkins': [],
+                'downloads': [],
+                'answers': [
+                    {'question': question.pk, 'answer': 'L', 'question_identifier': 'ABC',
+                     'options': [opt.pk],
+                     'option_identifiers': [opt.identifier]}
+                ],
+                'tax_rule': None,
+                'pseudonymization_id': 'PREVIEW',
+                'seat': None,
+                'canceled': False
+            }
+        ],
+        'downloads': [],
+        'checkin_attention': False,
+        'payments': [],
+        'refunds': [],
+        'require_approval': False,
+        'sales_channel': 'web',
+    }
+
+
 @pytest.mark.django_db
 def test_order_create_autocheckin(token_client, organizer, event, item, quota, question, clist_autocheckin):
     res = copy.deepcopy(ORDER_CREATE_PAYLOAD)