API: Add write operations to taxrules resource

src/tests/api/test_taxrules.py

@@ -1,5 +1,9 @@
+from decimal import Decimal
+
 import pytest
 
+from pretix.base.models import TaxRule
+
 TEST_TAXRULE_RES = {
     'name': {'en': 'VAT'},
     'rate': '19.00',
@@ -26,3 +30,59 @@ def test_rule_detail(token_client, organizer, event, taxrule):
                                                                                   taxrule.pk))
     assert resp.status_code == 200
     assert res == resp.data
+
+
+@pytest.mark.django_db
+def test_rule_create(token_client, organizer, event):
+    resp = token_client.post(
+        '/api/v1/organizers/{}/events/{}/taxrules/'.format(organizer.slug, event.slug),
+        {
+            "name": {"en": "VAT", "de": "MwSt"},
+            "rate": "19.00",
+            "price_includes_tax": True,
+            "eu_reverse_charge": False,
+            "home_country": "DE"
+        },
+        format='json'
+    )
+    assert resp.status_code == 201
+    rule = TaxRule.objects.get(pk=resp.data['id'])
+    assert rule.name.data == {"en": "VAT", "de": "MwSt"}
+    assert rule.rate == Decimal("19.00")
+    assert rule.price_includes_tax is True
+    assert rule.eu_reverse_charge is False
+    assert str(rule.home_country) == "DE"
+
+
+@pytest.mark.django_db
+def test_rule_update(token_client, organizer, event, taxrule):
+    resp = token_client.patch(
+        '/api/v1/organizers/{}/events/{}/taxrules/{}/'.format(organizer.slug, event.slug, taxrule.pk),
+        {
+            "rate": "20.00",
+        },
+        format='json'
+    )
+    assert resp.status_code == 200
+    taxrule.refresh_from_db()
+    assert taxrule.rate == Decimal("20.00")
+    assert taxrule.all_logentries().last().action_type == 'pretix.event.taxrule.changed'
+
+
+@pytest.mark.django_db
+def test_rule_delete(token_client, organizer, event, taxrule):
+    resp = token_client.delete(
+        '/api/v1/organizers/{}/events/{}/taxrules/{}/'.format(organizer.slug, event.slug, taxrule.pk),
+    )
+    assert resp.status_code == 200
+    assert not event.taxrules.exists()
+
+
+@pytest.mark.django_db
+def test_rule_delete_forbidden(token_client, organizer, event, taxrule):
+    event.items.create(name="Budget Ticket", default_price=23, tax_rule=taxrule)
+    resp = token_client.delete(
+        '/api/v1/organizers/{}/events/{}/taxrules/{}/'.format(organizer.slug, event.slug, taxrule.pk),
+    )
+    assert resp.status_code == 403
+    assert event.taxrules.exists()