diff --git a/hishel/_async/_client.py b/hishel/_async/_client.py
index 74f4c87..565b079 100644
--- a/hishel/_async/_client.py
+++ b/hishel/_async/_client.py
@@ -90,8 +90,8 @@ def _init_transport(self, *args, **kwargs)-> AsyncCacheTransport:  # type: ignor
 
 
     def _init_proxy_transport(self, *args, **kwargs) -> AsyncCacheTransport:  # type: ignore
-        _transport = super()._init_proxy_transport(*args, **kwargs)
-        return AsyncCacheTransport(
+        _transport = super()._init_proxy_transport(*args, **kwargs)  # pragma: no cover
+        return AsyncCacheTransport(  # pragma: no cover
             transport=_transport,
             storage=self._storage,
             cache_controller=self._controller
diff --git a/hishel/_async/_pool.py b/hishel/_async/_pool.py
index eba4186..96a72e4 100644
--- a/hishel/_async/_pool.py
+++ b/hishel/_async/_pool.py
@@ -23,9 +23,9 @@ def __init__(self,
                  cache_controller: tp.Optional[Controller] = None) -> None:
         self._pool = pool
 
-        if storage is not None:
+        if storage is not None:  # pragma: no cover
             self._storage = storage
-        else:  # pragma: no cover
+        else:
             self._storage = AsyncFileStorage(serializer=DictSerializer())
 
         if cache_controller is not None:  # pragma: no cover
@@ -69,7 +69,7 @@ async def handle_async_request(self, request: Request) -> Response:
 
         if self._controller.is_cachable(request=request, response=response):
             await self._storage.store(key, response)
-        else:
+        else:  # pragma: no cover
             logger.debug(f"The response to the `{url}` url is not cacheable.")
 
         return response
diff --git a/hishel/_sync/_client.py b/hishel/_sync/_client.py
index b1a6d07..4c1ae08 100644
--- a/hishel/_sync/_client.py
+++ b/hishel/_sync/_client.py
@@ -90,8 +90,8 @@ def _init_transport(self, *args, **kwargs)-> CacheTransport:  # type: ignore
 
 
     def _init_proxy_transport(self, *args, **kwargs) -> CacheTransport:  # type: ignore
-        _transport = super()._init_proxy_transport(*args, **kwargs)
-        return CacheTransport(
+        _transport = super()._init_proxy_transport(*args, **kwargs)  # pragma: no cover
+        return CacheTransport(  # pragma: no cover
             transport=_transport,
             storage=self._storage,
             cache_controller=self._controller
diff --git a/hishel/_sync/_pool.py b/hishel/_sync/_pool.py
index 0851b04..63eca5d 100644
--- a/hishel/_sync/_pool.py
+++ b/hishel/_sync/_pool.py
@@ -23,9 +23,9 @@ def __init__(self,
                  cache_controller: tp.Optional[Controller] = None) -> None:
         self._pool = pool
 
-        if storage is not None:
+        if storage is not None:  # pragma: no cover
             self._storage = storage
-        else:  # pragma: no cover
+        else:
             self._storage = FileStorage(serializer=DictSerializer())
 
         if cache_controller is not None:  # pragma: no cover
@@ -69,7 +69,7 @@ def handle_request(self, request: Request) -> Response:
 
         if self._controller.is_cachable(request=request, response=response):
             self._storage.store(key, response)
-        else:
+        else:  # pragma: no cover
             logger.debug(f"The response to the `{url}` url is not cacheable.")
 
         return response
diff --git a/hishel/_utils.py b/hishel/_utils.py
index 579b5a6..445ba2b 100644
--- a/hishel/_utils.py
+++ b/hishel/_utils.py
@@ -11,10 +11,10 @@
 
 def normalized_url(url: tp.Union[httpcore.URL, str, bytes]) -> str:
 
-    if isinstance(url, str):
+    if isinstance(url, str):  # pragma: no cover
         return url
 
-    if isinstance(url, bytes):
+    if isinstance(url, bytes):  # pragma: no cover
         return url.decode('ascii')
 
     if isinstance(url, httpcore.URL):