test send_downgrade_email.

normally called as a celery task, it is tested normally, synchronously.

formspree/users/helpers.py

@@ -5,9 +5,11 @@ from formspree import settings
 from formspree.stuff import celery
 from formspree.utils import send_email
 
+
 def hash_pwd(password):
     return generate_password_hash(password)
 
+
 def check_password(hashed, password):
     return check_password_hash(hashed, password)
 

tests/conftest.py

@@ -24,6 +24,7 @@ def msend():
         with \
               patch('formspree.users.models.send_email', side_effect=side_effect), \
               patch('formspree.users.views.send_email', side_effect=side_effect), \
+              patch('formspree.users.helpers.send_email', side_effect=side_effect), \
               patch('formspree.forms.models.send_email', side_effect=side_effect):
             yield msend
 

tests/test_standalone_functions.py

@@ -1,4 +1,5 @@
 from formspree.utils import next_url
+from formspree.users.helpers import send_downgrade_email
 
 def test_next_url(client):
     # thanks route should have the referrer as its 'next'
@@ -18,3 +19,9 @@ def test_next_url(client):
     # Referrer set and absolute next url should result in proper absolute next url.
     assert 'https://morefun.net/awesome.php' == next_url(referrer='https://fun.io', next='//morefun.net/awesome.php')
     assert 'http://morefun.net/awesome.php' == next_url(referrer='http://fun.io', next='//morefun.net/awesome.php')
+
+def test_send_downgrade_email(msend):
+    send_downgrade_email('whatever@example.com')
+    assert msend.called
+    assert msend.call_args[1]['to'] == 'whatever@example.com'
+    assert 'Successfully downgraded from' in msend.call_args[1]['subject']