tests(storages): improve tests

add .cov config report ignores

.coveragerc

@@ -0,0 +1,5 @@
+[report]
+exclude_lines =
+    pragma: no cover
+    if TYPE_CHECKING:
+    raise NotImplementedError

tests/test_dispatcher/test_state/test_context.py

@@ -69,7 +69,7 @@ class TestCurrentUserContext:
             mocked.assert_awaited()
 
     @pytest.mark.asyncio
-    @pytest.mark.parametrize("getter_method", ("set_state", "set_data"))
+    @pytest.mark.parametrize("getter_method", ("get_state", "get_data"))
     async def test_getters(self, storage, getter_method):
         chat_id, user_id = 1, 2
         ctx = CurrentUserContext(storage, chat_id, user_id)
@@ -78,6 +78,10 @@ class TestCurrentUserContext:
             await getattr(ctx, getter_method)()
             mocked.assert_awaited()
 
+        assert await getattr(ctx, getter_method)() == await getattr(storage, getter_method)(
+            key=ctx.key
+        )
+
     @pytest.mark.asyncio
     @pytest.mark.parametrize("reseter_method", ("reset_data", "reset_state", "finish"))
     async def test_setters(self, storage, reseter_method):
@@ -116,3 +120,7 @@ class TestCurrentUserContext:
         new_data = LegitMapping()
         assert await ctx.update_data(data=new_data) is None
         assert await ctx.get_data() == new_data
+
+        await ctx.reset_data()
+        assert await ctx.update_data(data=None) is None
+        assert await ctx.get_data() == {}

tests/test_dispatcher/test_storage/test_dict.py

@@ -51,6 +51,11 @@ class TestDictStorage:
         assert await storage.reset_data(key=key) is None
         assert await storage.get_data(key=key) == {}  # reset_data makes data empty dict
 
+        new_data = {"abc": "abc"}
+        assert await storage.update_data(key=key, data=new_data) is None
+        assert await storage.update_data(key=key, data=None) is None
+        assert await storage.get_data(key=key) == new_data
+
     @pytest.mark.asyncio
     async def test_finish(self):
         # finish turns data into initial one