"""A custom backend for testing."""

from django.core.mail.backends.base import BaseEmailBackend

class EmailBackend(BaseEmailBackend):

    def __init__(self, *args, **kwargs):

        super().__init__(*args, **kwargs)

        self.test_outbox = []

    def send_messages(self, email_messages):

        # Messages are stored in an instance variable for testing.

        self.test_outbox.extend(email_messages)

        return len(email_messages)