Refs #99 -- Improve support for currencies with less than 2 decimal places (#783)

* Refs #99 -- Fix stripe support for zero-decimal currencies

* Add new money formatting method

* Force decimal places in many places

* Locale-aware currency rendering

* Fix currencies in more places

* More currency fixes

src/tests/plugins/stripe/test_provider.py

@@ -77,6 +77,36 @@ def test_perform_success(env, factory, monkeypatch):
     assert order.status == Order.STATUS_PAID
 
 
+@pytest.mark.django_db
+def test_perform_success_zero_decimal_currency(env, factory, monkeypatch):
+    event, order = env
+    event.currency = 'JPY'
+    event.save()
+
+    def charge_create(**kwargs):
+        assert kwargs['amount'] == 13
+        assert kwargs['currency'] == 'jpy'
+        assert kwargs['source'] == 'tok_189fTT2eZvKYlo2CvJKzEzeu'
+        c = MockedCharge()
+        c.status = 'succeeded'
+        c.paid = True
+        return c
+
+    monkeypatch.setattr("stripe.Charge.create", charge_create)
+    prov = StripeCC(event)
+    req = factory.post('/', {
+        'stripe_token': 'tok_189fTT2eZvKYlo2CvJKzEzeu',
+        'stripe_last4': '4242',
+        'stripe_brand': 'Visa'
+    })
+    req.session = {}
+    prov.checkout_prepare(req, {})
+    assert 'payment_stripe_token' in req.session
+    prov.payment_perform(req, order)
+    order.refresh_from_db()
+    assert order.status == Order.STATUS_PAID
+
+
 @pytest.mark.django_db
 def test_perform_card_error(env, factory, monkeypatch):
     event, order = env

src/tests/presale/test_checkout.py

@@ -1306,7 +1306,7 @@ class CheckoutTestCase(TestCase):
                              target_status_code=200)
         response = self.client.get('/%s/%s/checkout/addons/' % (self.orga.slug, self.event.slug))
         assert 'Workshop 1' in response.rendered_content
-        assert 'EUR 12.00' in response.rendered_content
+        assert '€12.00' in response.rendered_content
 
     def test_set_addons_included(self):
         ItemAddOn.objects.create(base_item=self.ticket, addon_category=self.workshopcat, min_count=1,
@@ -1320,7 +1320,7 @@ class CheckoutTestCase(TestCase):
         self.assertRedirects(response, '/%s/%s/checkout/addons/' % (self.orga.slug, self.event.slug),
                              target_status_code=200)
         assert 'Workshop 1' in response.rendered_content
-        assert 'EUR 12.00' not in response.rendered_content
+        assert '€12.00' not in response.rendered_content
 
     def test_set_addons_subevent(self):
         self.event.has_subevents = True
@@ -1340,7 +1340,7 @@ class CheckoutTestCase(TestCase):
         response = self.client.get('/%s/%s/checkout/questions/' % (self.orga.slug, self.event.slug), follow=True)
         self.assertRedirects(response, '/%s/%s/checkout/addons/' % (self.orga.slug, self.event.slug),
                              target_status_code=200)
-        assert 'Workshop 1 (+ EUR 42.00)' in response.rendered_content
+        assert 'Workshop 1 (+ €42.00)' in response.rendered_content
 
     def test_set_addons_subevent_net_prices(self):
         self.event.has_subevents = True
@@ -1365,8 +1365,8 @@ class CheckoutTestCase(TestCase):
         response = self.client.get('/%s/%s/checkout/questions/' % (self.orga.slug, self.event.slug), follow=True)
         self.assertRedirects(response, '/%s/%s/checkout/addons/' % (self.orga.slug, self.event.slug),
                              target_status_code=200)
-        assert 'Workshop 1 (+ EUR 35.29 plus 19.00% VAT)' in response.rendered_content
-        assert 'A (+ EUR 10.08 plus 19.00% VAT)' in response.rendered_content
+        assert 'Workshop 1 (+ €35.29 plus 19.00% VAT)' in response.rendered_content
+        assert 'A (+ €10.08 plus 19.00% VAT)' in response.rendered_content
 
     def test_confirm_subevent_presale_not_yet(self):
         self.event.has_subevents = True

src/tests/presale/test_orders.py

@@ -409,7 +409,7 @@ class OrdersTest(TestCase):
             '/%s/%s/order/%s/%s/pay/change' % (self.orga.slug, self.event.slug, self.order.code, self.order.secret),
         )
         assert 'Test dummy' in response.rendered_content
-        assert '+ 12.00' in response.rendered_content
+        assert '+ €12.00' in response.rendered_content
         response = self.client.post(
             '/%s/%s/order/%s/%s/pay/change' % (self.orga.slug, self.event.slug, self.order.code, self.order.secret),
             {