pretix_original/src/tests/plugins/stripe/test_provider.py

#
# This file is part of pretix (Community Edition).
#
# Copyright (C) 2014-2020 Raphael Michel and contributors
# Copyright (C) 2020-2021 rami.io GmbH and contributors
#
# This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General
# Public License as published by the Free Software Foundation in version 3 of the License.
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# applicable granting you additional permissions and placing additional restrictions on your usage of this software.
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# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more
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# This file is based on an earlier version of pretix which was released under the Apache License 2.0. The full text of
# the Apache License 2.0 can be obtained at <http://www.apache.org/licenses/LICENSE-2.0>.
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# This file contains Apache-licensed contributions copyrighted by: Jakob Schnell
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# License for the specific language governing permissions and limitations under the License.

import json
from datetime import timedelta
from decimal import Decimal

import pytest
from django.test import RequestFactory
from django.utils.timezone import now
from django_scopes import scope
from stripe.error import APIConnectionError, CardError

from pretix.base.models import Event, Order, OrderRefund, Organizer
from pretix.base.payment import PaymentException
from pretix.plugins.stripe.payment import StripeCC


@pytest.fixture
def env():
    o = Organizer.objects.create(name='Dummy', slug='dummy')
    with scope(organizer=o):
        event = Event.objects.create(
            organizer=o, name='Dummy', slug='dummy',
            date_from=now(), live=True
        )
        o1 = Order.objects.create(
            code='FOOBAR', event=event, email='dummy@dummy.test',
            status=Order.STATUS_PENDING,
            datetime=now(), expires=now() + timedelta(days=10),
            total=Decimal('13.37')
        )
        yield event, o1


@pytest.fixture(autouse=True)
def no_messages(monkeypatch):
    # Patch out template rendering for performance improvements
    monkeypatch.setattr("django.contrib.messages.api.add_message", lambda *args, **kwargs: None)


@pytest.fixture
def factory():
    return RequestFactory()


class MockedRefunds():
    pass


class MockedCharge():
    status = ''
    paid = False
    id = 'ch_123345345'
    refunds = MockedRefunds()

    def refresh(self):
        pass


class Object():
    pass


class MockedPaymentintent():
    status = ''
    id = 'pi_1EUon12Tb35ankTnZyvC3SdE'
    charges = Object()
    charges.data = [MockedCharge()]
    last_payment_error = None


@pytest.mark.django_db
def test_perform_success(env, factory, monkeypatch):
    event, order = env

    def paymentintent_create(**kwargs):
        assert kwargs['amount'] == 1337
        assert kwargs['currency'] == 'eur'
        assert kwargs['payment_method'] == 'pm_189fTT2eZvKYlo2CvJKzEzeu'
        c = MockedPaymentintent()
        c.status = 'succeeded'
        c.charges.data[0].paid = True
        return c

    monkeypatch.setattr("stripe.PaymentIntent.create", paymentintent_create)

    prov = StripeCC(event)
    req = factory.post('/', {
        'stripe_payment_method_id': 'pm_189fTT2eZvKYlo2CvJKzEzeu',
        'stripe_last4': '4242',
        'stripe_brand': 'Visa'
    })
    req.session = {}
    prov.checkout_prepare(req, {})
    assert 'payment_stripe_payment_method_id' in req.session
    payment = order.payments.create(
        provider='stripe_cc', amount=order.total
    )
    prov.execute_payment(req, payment)
    order.refresh_from_db()
    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 paymentintent_create(**kwargs):
        assert kwargs['amount'] == 13
        assert kwargs['currency'] == 'jpy'
        assert kwargs['payment_method'] == 'pm_189fTT2eZvKYlo2CvJKzEzeu'
        c = MockedPaymentintent()
        c.status = 'succeeded'
        c.charges.data[0].paid = True
        return c

    monkeypatch.setattr("stripe.PaymentIntent.create", paymentintent_create)
    prov = StripeCC(event)
    req = factory.post('/', {
        'stripe_payment_method_id': 'pm_189fTT2eZvKYlo2CvJKzEzeu',
        'stripe_last4': '4242',
        'stripe_brand': 'Visa'
    })
    req.session = {}
    prov.checkout_prepare(req, {})
    assert 'payment_stripe_payment_method_id' in req.session
    payment = order.payments.create(
        provider='stripe_cc', amount=order.total
    )
    prov.execute_payment(req, payment)
    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

    def paymentintent_create(**kwargs):
        raise CardError(message='Foo', param='foo', code=100)

    monkeypatch.setattr("stripe.PaymentIntent.create", paymentintent_create)
    prov = StripeCC(event)
    req = factory.post('/', {
        'stripe_payment_method_id': 'pm_189fTT2eZvKYlo2CvJKzEzeu',
        'stripe_last4': '4242',
        'stripe_brand': 'Visa'
    })
    req.session = {}
    prov.checkout_prepare(req, {})
    assert 'payment_stripe_payment_method_id' in req.session
    with pytest.raises(PaymentException):
        payment = order.payments.create(
            provider='stripe_cc', amount=order.total
        )
        prov.execute_payment(req, payment)
    order.refresh_from_db()
    assert order.status == Order.STATUS_PENDING


@pytest.mark.django_db
def test_perform_stripe_error(env, factory, monkeypatch):
    event, order = env

    def paymentintent_create(**kwargs):
        raise CardError(message='Foo', param='foo', code=100)

    monkeypatch.setattr("stripe.PaymentIntent.create", paymentintent_create)
    prov = StripeCC(event)
    req = factory.post('/', {
        'stripe_payment_method_id': 'pm_189fTT2eZvKYlo2CvJKzEzeu',
        'stripe_last4': '4242',
        'stripe_brand': 'Visa'
    })
    req.session = {}
    prov.checkout_prepare(req, {})
    assert 'payment_stripe_payment_method_id' in req.session
    with pytest.raises(PaymentException):
        payment = order.payments.create(
            provider='stripe_cc', amount=order.total
        )
        prov.execute_payment(req, payment)
    order.refresh_from_db()
    assert order.status == Order.STATUS_PENDING


@pytest.mark.django_db
def test_perform_failed(env, factory, monkeypatch):
    event, order = env

    def paymentintent_create(**kwargs):
        assert kwargs['amount'] == 1337
        assert kwargs['currency'] == 'eur'
        assert kwargs['payment_method'] == 'pm_189fTT2eZvKYlo2CvJKzEzeu'
        c = MockedPaymentintent()
        c.status = 'failed'
        c.failure_message = 'Foo'
        c.charges.data[0].paid = True
        c.last_payment_error = Object()
        c.last_payment_error.message = "Foo"
        return c

    monkeypatch.setattr("stripe.PaymentIntent.create", paymentintent_create)
    prov = StripeCC(event)
    req = factory.post('/', {
        'stripe_payment_method_id': 'pm_189fTT2eZvKYlo2CvJKzEzeu',
        'stripe_last4': '4242',
        'stripe_brand': 'Visa'
    })
    req.session = {}
    prov.checkout_prepare(req, {})
    assert 'payment_stripe_payment_method_id' in req.session
    with pytest.raises(PaymentException):
        payment = order.payments.create(
            provider='stripe_cc', amount=order.total
        )
        prov.execute_payment(req, payment)
    order.refresh_from_db()
    assert order.status == Order.STATUS_PENDING


@pytest.mark.django_db
def test_refund_success(env, factory, monkeypatch):
    event, order = env

    def charge_retr(*args, **kwargs):
        def refund_create(amount):
            r = MockedCharge()
            r.id = 'foo'
            r.status = 'succeeded'
            return r

        c = MockedCharge()
        c.refunds.create = refund_create
        return c

    monkeypatch.setattr("stripe.Charge.retrieve", charge_retr)
    order.status = Order.STATUS_PAID
    p = order.payments.create(provider='stripe_cc', amount=order.total, info=json.dumps({
        'id': 'ch_123345345'
    }))
    order.save()
    prov = StripeCC(event)
    refund = order.refunds.create(
        provider='stripe_cc', amount=order.total, payment=p,
    )
    prov.execute_refund(refund)
    refund.refresh_from_db()
    assert refund.state == OrderRefund.REFUND_STATE_DONE


@pytest.mark.django_db
def test_refund_unavailable(env, factory, monkeypatch):
    event, order = env

    def charge_retr(*args, **kwargs):
        def refund_create(amount):
            raise APIConnectionError(message='Foo')

        c = MockedCharge()
        c.refunds.create = refund_create
        return c

    monkeypatch.setattr("stripe.Charge.retrieve", charge_retr)
    order.status = Order.STATUS_PAID
    p = order.payments.create(provider='stripe_cc', amount=order.total, info=json.dumps({
        'id': 'ch_123345345'
    }))
    order.save()
    prov = StripeCC(event)
    refund = order.refunds.create(
        provider='stripe_cc', amount=order.total, payment=p
    )
    with pytest.raises(PaymentException):
        prov.execute_refund(refund)
    refund.refresh_from_db()
    assert refund.state != OrderRefund.REFUND_STATE_DONE