Implemented SheerkaOntology

tests/cache/test_FastCache.py

@@ -1,4 +1,5 @@
 from cache.FastCache import FastCache
+from core.global_symbols import NotFound
 
 
 def test_i_can_put_an_retrieve_values():
@@ -47,7 +48,7 @@ def test_i_can_put_the_same_key_several_times():
 
 def test_none_is_returned_when_not_found():
     cache = FastCache()
-    assert cache.get("foo") is None
+    assert cache.get("foo") is NotFound
 
 
 def test_i_can_evict_by_key():
@@ -65,3 +66,14 @@ def test_i_can_evict_by_key():
                            "to_keep3": "to_keep_value3"}
 
     assert cache.lru == ["to_keep1", "to_keep2", "to_keep3"]
+
+
+def test_i_can_get_default_value():
+    cache = FastCache(max_size=3, default=lambda key: key + 1)
+
+    assert cache.get(1) == 2
+    assert cache.get(2) == 3
+    assert cache.get(3) == 4
+    assert cache.get(4) == 5
+
+    assert cache.cache == {2: 3, 3: 4, 4: 5}  # only 3 values