Testing Django signals

testing_django_signals.py

from unittest import TestCase
from my_app.signals import foo_bar


class SignalsTestCase(TestCase):

    def dummy_listener(self, sender, **kwargs):
        self.times += 1

    def test_deve_chamar_o_signal_foo_bar(self):
        self.times = 0
        foo_bar.connect(self.dummy_listener)
        metodo_que_deve_disparar_o_sinal()
        self.asserGreater(self.times, 0)