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# These are copied (and maybe modified) from django official unit tests
from __future__ import division
from django.test import override_settings
from django.core import mail
try:
from unittest import mock # noqa
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import mock # noqa
class BaseEmailBackendTestsMixin(object):
email_backend = None
def setUp(self): # noqa
self.settings_override = override_settings(EMAIL_BACKEND=self.email_backend)
self.settings_override.enable()
def tearDown(self): # noqa
self.settings_override.disable()
def assertStartsWith(self, first, second): # noqa
if not first.startswith(second):
self.longMessage = True
self.assertEqual(first[:len(second)], second,
"First string doesn't start with the second.")
def get_mailbox_content(self):
raise NotImplementedError(
'subclasses of BaseEmailBackendTests must provide '
'a get_mailbox_content() method')
def flush_mailbox(self):
raise NotImplementedError('subclasses of BaseEmailBackendTests may '
'require a flush_mailbox() method')
def get_the_email_message(self):
mailbox = self.get_mailbox_content()
self.assertEqual(
len(mailbox), 1,
"Expected exactly one message, got %d.\n%r"
% (len(mailbox), [m.as_string() for m in mailbox])
)
return mailbox[0]
def get_the_latest_message(self):
mailbox = self.get_mailbox_content()
self.assertGreater(
len(mailbox), 0,
"Expected at least one message, got %d.\n%r"
% (len(mailbox), [m.as_string() for m in mailbox])
)
return mailbox[-1]
def debug_print_email_messages(self, indices=None):
"""
For debugging print email contents with indices in outbox
"""
messages = self.get_mailbox_content()
if indices is not None:
if not isinstance(indices, list):
assert isinstance(indices, int)
indices = [indices]
else:
for i in indices:
assert isinstance(i, int)
else:
indices = list(range(len(messages)))
for i in indices:
try:
msg = messages[i]
print("\n-----------email (%i)-------------" % i)
print(msg)
except KeyError:
print("\n-------no email with index %i----------" % i)
finally:
print("\n------------------------")
class LocmemBackendTestsMixin(BaseEmailBackendTestsMixin):
email_backend = 'django.core.mail.backends.locmem.EmailBackend'
def get_mailbox_content(self):
return [m.message() for m in mail.outbox]
def flush_mailbox(self):
mail.outbox = []
def tearDown(self): # noqa
super(LocmemBackendTestsMixin, self).tearDown()
mail.outbox = []
class BaseEmailBackendTestsMixin(object):
email_backend = None
def setUp(self): # noqa
self.settings_override = override_settings(EMAIL_BACKEND=self.email_backend)
self.settings_override.enable()
def tearDown(self): # noqa
self.settings_override.disable()