fixed cache test

tests/test_cache.py

@@ -1,3 +1,4 @@
+import pytest
 import scgenerator.cache as scc
 from scgenerator.cache import Cache, normalize_path
 
@@ -72,24 +73,29 @@ class Stuff:
         self.x = x
 
 
-def test_decorator():
+@pytest.fixture
+def cache_for_test():
     cache = Cache("Test")
+    yield cache
     cache.delete()
+
+
+def test_decorator(cache_for_test: Cache):
     call_count = 0
 
-    @cache()
+    @cache_for_test(lambda x: str(x))
     def func(x: str) -> str:
         nonlocal call_count
         call_count += 1
         return x + x
 
-    @cache(lambda li: f"{li[0]}-{li[-1]} {len(li)}")
+    @cache_for_test(lambda li: f"{li[0]}-{li[-1]} {len(li)}")
     def func2(some_list: list):
         nonlocal call_count
         call_count += 1
         return sum(some_list)
 
-    Stuff.from_other = cache(lambda _, *args: str(args))(Stuff.from_other)
+    Stuff.from_other = cache_for_test(lambda _, *args: str(args))(Stuff.from_other)
 
     assert func("hello") == "hellohello"
     assert func2([0, 1, 2, 80]) == 83
@@ -103,7 +109,6 @@ def test_decorator():
     assert Stuff.call_count == 1
 
     assert call_count == 2
-    cache.delete()
 
 
 def test_normalize():