Adds test cases for basic batch cacheing behaviour

registrasion/tests/test_batch.py

@@ -0,0 +1,83 @@
+import datetime
+import pytz
+
+from django.core.exceptions import ValidationError
+
+from controller_helpers import TestingCartController
+from test_cart import RegistrationCartTestCase
+
+from registrasion.controllers.batch import BatchController
+from registrasion.controllers.discount import DiscountController
+from registrasion.controllers.product import ProductController
+from registrasion.models import commerce
+from registrasion.models import conditions
+
+UTC = pytz.timezone('UTC')
+
+
+class BatchTestCase(RegistrationCartTestCase):
+
+    def test_no_caches_outside_of_batches(self):
+        cache_1 = BatchController.get_cache(self.USER_1)
+        cache_2 = BatchController.get_cache(self.USER_2)
+
+        # Identity testing is important here
+        self.assertIsNot(cache_1, cache_2)
+
+    def test_cache_clears_at_batch_exit(self):
+        with BatchController.batch(self.USER_1):
+            cache_1 = BatchController.get_cache(self.USER_1)
+
+        cache_2 = BatchController.get_cache(self.USER_1)
+
+        self.assertIsNot(cache_1, cache_2)
+
+    def test_caches_identical_within_nestings(self):
+        with BatchController.batch(self.USER_1):
+            cache_1 = BatchController.get_cache(self.USER_1)
+
+            with BatchController.batch(self.USER_2):
+                cache_2 = BatchController.get_cache(self.USER_1)
+
+            cache_3 = BatchController.get_cache(self.USER_1)
+
+        self.assertIs(cache_1, cache_2)
+        self.assertIs(cache_2, cache_3)
+
+    def test_caches_are_independent_for_different_users(self):
+        with BatchController.batch(self.USER_1):
+            cache_1 = BatchController.get_cache(self.USER_1)
+
+            with BatchController.batch(self.USER_2):
+                cache_2 = BatchController.get_cache(self.USER_2)
+
+        self.assertIsNot(cache_1, cache_2)
+
+    def test_cache_clears_are_independent_for_different_users(self):
+        with BatchController.batch(self.USER_1):
+            cache_1 = BatchController.get_cache(self.USER_1)
+
+            with BatchController.batch(self.USER_2):
+                cache_2 = BatchController.get_cache(self.USER_2)
+
+            with BatchController.batch(self.USER_2):
+                cache_3 = BatchController.get_cache(self.USER_2)
+
+            cache_4 = BatchController.get_cache(self.USER_1)
+
+        self.assertIs(cache_1, cache_4)
+        self.assertIsNot(cache_1, cache_2)
+        self.assertIsNot(cache_2, cache_3)
+
+    def test_new_caches_for_new_batches(self):
+        with BatchController.batch(self.USER_1):
+            cache_1 = BatchController.get_cache(self.USER_1)
+
+        with BatchController.batch(self.USER_1):
+            cache_2 = BatchController.get_cache(self.USER_1)
+
+            with BatchController.batch(self.USER_1):
+                cache_3 = BatchController.get_cache(self.USER_1)
+
+        self.assertIs(cache_2, cache_3)
+        self.assertIsNot(cache_1, cache_2)