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test cases for memoisation

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This commit is contained in:
Christopher Neugebauer 2016-05-01 10:42:18 +10:00
parent ddedf54c42
commit 27ab44ec44
1 changed files with 39 additions and 0 deletions
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39
registrasion/tests/test_batch.py
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@ -81,3 +81,42 @@ class BatchTestCase(RegistrationCartTestCase):
self.assertIs(cache_2, cache_3)
self.assertIsNot(cache_1, cache_2)
def test_memoisation_happens_in_batch_context(self):
with BatchController.batch(self.USER_1):
output_1 = self._memoiseme(self.USER_1)
with BatchController.batch(self.USER_1):
output_2 = self._memoiseme(self.USER_1)
self.assertIs(output_1, output_2)
def test_memoisaion_does_not_happen_outside_batch_context(self):
output_1 = self._memoiseme(self.USER_1)
output_2 = self._memoiseme(self.USER_1)
self.assertIsNot(output_1, output_2)
def test_memoisation_is_user_independent(self):
with BatchController.batch(self.USER_1):
output_1 = self._memoiseme(self.USER_1)
with BatchController.batch(self.USER_2):
output_2 = self._memoiseme(self.USER_2)
output_3 = self._memoiseme(self.USER_1)
self.assertIsNot(output_1, output_2)
self.assertIs(output_1, output_3)
def test_memoisation_clears_outside_batches(self):
with BatchController.batch(self.USER_1):
output_1 = self._memoiseme(self.USER_1)
with BatchController.batch(self.USER_1):
output_2 = self._memoiseme(self.USER_1)
self.assertIsNot(output_1, output_2)
@classmethod
@BatchController.memoise
def _memoiseme(self, user):
return object()