def list(self, request, *args, **kwargs):
latest_submissions = Submission.fetch_last_10_submissions_for_unique_challenges_by_user(
user_id=request.user.id)
latest_challenges = [
submission.challenge for submission in latest_submissions
]
return Response(data=LimitedChallengeSerializer(
latest_challenges, many=True, context={
'request': request
}).data)
def test_fetch_last_10_submissions_for_unique_challenges_by_author(self):
""" The method should return the last 10 submissions for unique challenges by the author """
for _ in range(20):
# Create 20 submissions
SubmissionFactory(author=self.auth_user)
for _ in range(10):
# Create last 10 submissions for one challenge
SubmissionFactory(author=self.auth_user, challenge=self.challenge)
latest_unique_submissions = Submission.fetch_last_10_submissions_for_unique_challenges_by_user(user_id=self.auth_user.id)
# the first one should be for self.challenge, since we made it last
self.assertEqual(latest_unique_submissions[0].challenge, self.challenge)
# they should all be for unique challenges
unique_challenge_ids = set([s.challenge.id for s in latest_unique_submissions])
self.assertEqual(10, len(unique_challenge_ids))