137 lines
4.6 KiB
Python
137 lines
4.6 KiB
Python
import pytz
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from test_cart import RegistrationCartTestCase
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from registrasion.controllers.batch import BatchController
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UTC = pytz.timezone('UTC')
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class BatchTestCase(RegistrationCartTestCase):
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def test_no_caches_outside_of_batches(self):
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cache_1 = BatchController.get_cache(self.USER_1)
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cache_2 = BatchController.get_cache(self.USER_2)
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# Identity testing is important here
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self.assertIsNot(cache_1, cache_2)
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def test_cache_clears_at_batch_exit(self):
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with BatchController.batch(self.USER_1):
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cache_1 = BatchController.get_cache(self.USER_1)
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cache_2 = BatchController.get_cache(self.USER_1)
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self.assertIsNot(cache_1, cache_2)
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def test_caches_identical_within_nestings(self):
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with BatchController.batch(self.USER_1):
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cache_1 = BatchController.get_cache(self.USER_1)
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with BatchController.batch(self.USER_2):
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cache_2 = BatchController.get_cache(self.USER_1)
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cache_3 = BatchController.get_cache(self.USER_1)
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self.assertIs(cache_1, cache_2)
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self.assertIs(cache_2, cache_3)
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def test_caches_are_independent_for_different_users(self):
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with BatchController.batch(self.USER_1):
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cache_1 = BatchController.get_cache(self.USER_1)
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with BatchController.batch(self.USER_2):
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cache_2 = BatchController.get_cache(self.USER_2)
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self.assertIsNot(cache_1, cache_2)
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def test_cache_clears_are_independent_for_different_users(self):
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with BatchController.batch(self.USER_1):
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cache_1 = BatchController.get_cache(self.USER_1)
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with BatchController.batch(self.USER_2):
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cache_2 = BatchController.get_cache(self.USER_2)
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with BatchController.batch(self.USER_2):
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cache_3 = BatchController.get_cache(self.USER_2)
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cache_4 = BatchController.get_cache(self.USER_1)
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self.assertIs(cache_1, cache_4)
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self.assertIsNot(cache_1, cache_2)
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self.assertIsNot(cache_2, cache_3)
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def test_new_caches_for_new_batches(self):
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with BatchController.batch(self.USER_1):
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cache_1 = BatchController.get_cache(self.USER_1)
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with BatchController.batch(self.USER_1):
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cache_2 = BatchController.get_cache(self.USER_1)
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with BatchController.batch(self.USER_1):
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cache_3 = BatchController.get_cache(self.USER_1)
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self.assertIs(cache_2, cache_3)
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self.assertIsNot(cache_1, cache_2)
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def test_memoisation_happens_in_batch_context(self):
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with BatchController.batch(self.USER_1):
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output_1 = self._memoiseme(self.USER_1)
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with BatchController.batch(self.USER_1):
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output_2 = self._memoiseme(self.USER_1)
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self.assertIs(output_1, output_2)
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def test_memoisaion_does_not_happen_outside_batch_context(self):
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output_1 = self._memoiseme(self.USER_1)
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output_2 = self._memoiseme(self.USER_1)
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self.assertIsNot(output_1, output_2)
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def test_memoisation_is_user_independent(self):
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with BatchController.batch(self.USER_1):
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output_1 = self._memoiseme(self.USER_1)
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with BatchController.batch(self.USER_2):
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output_2 = self._memoiseme(self.USER_2)
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output_3 = self._memoiseme(self.USER_1)
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self.assertIsNot(output_1, output_2)
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self.assertIs(output_1, output_3)
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def test_memoisation_clears_outside_batches(self):
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with BatchController.batch(self.USER_1):
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output_1 = self._memoiseme(self.USER_1)
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with BatchController.batch(self.USER_1):
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output_2 = self._memoiseme(self.USER_1)
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self.assertIsNot(output_1, output_2)
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@classmethod
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@BatchController.memoise
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def _memoiseme(self, user):
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return object()
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def test_batch_end_functionality_is_called(self):
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class Ender(object):
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end_count = 0
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def end_batch(self):
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self.end_count += 1
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@BatchController.memoise
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def get_ender(user):
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return Ender()
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# end_batch should get called once on exiting the batch
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with BatchController.batch(self.USER_1):
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ender = get_ender(self.USER_1)
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self.assertEquals(1, ender.end_count)
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# end_batch should get called once on exiting the batch
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# no matter how deep the object gets cached
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with BatchController.batch(self.USER_1):
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with BatchController.batch(self.USER_1):
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ender = get_ender(self.USER_1)
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self.assertEquals(1, ender.end_count)
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