def test_build_sg_email_w_substitutions(self):
msg = EmailMessage()
msg.substitutions = {}
with self.settings(SENDGRID_API_KEY='test_key'):
mail = SendGridBackend()._build_sg_mail(msg)
self.assertEqual(
mail,
{'content': [{'type': 'text/plain', 'value': ''}],
'from': {'email': 'webmaster@localhost'},
'personalizations': [{'subject': ''}],
'subject': ''}
)
