1 files changed, 18 insertions, 0 deletions
diff --git a/tests/cache/_fixtures.py b/tests/cache/_fixtures.py
index 9e71f8f..8b3aa77 100644
--- a/tests/cache/_fixtures.py
+++ b/tests/cache/_fixtures.py
@@ -14,6 +14,7 @@ from dogpile.cache import CacheRegion
 from dogpile.cache import register_backend
 from dogpile.cache.api import CacheBackend
 from dogpile.cache.api import CacheMutex
+from dogpile.cache.api import CantDeserializeException
 from dogpile.cache.api import NO_VALUE
 from dogpile.cache.region import _backend_loader
 from . import assert_raises_message
@@ -380,6 +381,10 @@ class _GenericBackendTest(_GenericBackendFixture, TestCase):
         )
 
 
+def raise_cant_deserialize_exception(v):
+    raise CantDeserializeException()
+
+
 class _GenericSerializerTest(TestCase):
     # Inheriting from this class will make test cases
     # use these serialization arguments
@@ -388,6 +393,19 @@ class _GenericSerializerTest(TestCase):
         "deserializer": json.loads,
     }
 
+    def test_serializer_cant_deserialize(self):
+        region = self._region(
+            region_args={
+                "serializer": self.region_args["serializer"],
+                "deserializer": raise_cant_deserialize_exception,
+            }
+        )
+
+        value = {"foo": ["bar", 1, False, None]}
+        region.set("k", value)
+        asserted = region.get("k")
+        eq_(asserted, NO_VALUE)
+
     def test_uses_serializer(self):
         region = self._region()