def refund(self):
"""Processes a refund transaction."""
transaction = self.get_object()
refund = gateway.Refund({
'transaction_type': 'r',
'amount': transaction.amount,
'token': transaction.token,
'token_f4l4': transaction.token_f4l4,
'customer_code': transaction.customer_code,
})
try:
refund.process()
except exceptions.RefundError:
messages.error(self.request, 'Unable to refund transaction')
else:
messages.success(self.request, 'Transaction refunded')
return HttpResponseRedirect(
reverse(
'helcim_transaction_detail',
kwargs={'transaction_id': transaction.id}
)
)
def process(self):
"""Attempts to process Refund with transaction details.
Returns the values of ``gateway.Refund.process``.
Raises:
GatewayError: An Oscar error raised when there was an
error with the payment API.
PaymentError: An Oscar error raised when there was an
error processing the payment.
"""
refund_instance = gateway.Refund(save_token=self.save_token,
django_user=self.django_user,
**self.transaction_details)
try:
return refund_instance.process()
except helcim_exceptions.ProcessingError as error:
raise oscar_exceptions.GatewayError(str(error))
except helcim_exceptions.PaymentError as error:
raise oscar_exceptions.PaymentError(str(error))
except helcim_exceptions.DjangoError:
LOG.exception('Refund complete, but errors occured while saving '
'transaction to database')
except helcim_exceptions.HelcimError as error:
raise oscar_exceptions.GatewayError(str(error))
def test_process_error_response_refund():
refund_request = gateway.Refund()
try:
refund_request.process_error_response('')
except helcim_exceptions.RefundError:
assert True
else:
assert False
def test_refund_processing():
details = {
'amount': 100.00,
'customer_code': 'CST1000',
}
refund = gateway.Refund(api_details=API_DETAILS, **details)
transaction, _ = refund.process()
assert isinstance(transaction, MockDjangoModel)
def test_process_with_save_token_disabled():
details = {
'amount': 100.00,
'token': 'abcdefghijklmnopqrstuvw',
'token_f4l4': '11119999',
'customer_code': 'CST1000',
}
refund = gateway.Refund(api_details=API_DETAILS,
save_token=True,
**details)
_, token = refund.process()
assert token is None
def test_process_with_save_token_enabled(django_user_model):
details = {
'amount': 100.00,
'token': 'abcdefghijklmnopqrstuvw',
'token_f4l4': '11119999',
'customer_code': 'CST1000',
}
user = django_user_model.objects.create_user(username='******',
password='******')
refund = gateway.Refund(api_details=API_DETAILS,
save_token=True,
django_user=user,
**details)
_, token = refund.process()
assert isinstance(token, MockDjangoModel)