From 7b9ef9ce01d61e01e748f2a064835ff8dc94d9e0 Mon Sep 17 00:00:00 2001
From: Amy Wang <aew227@cornell.edu>
Date: Mon, 4 Nov 2024 12:12:35 -0500
Subject: [PATCH] Handle cache_timeout = 0 in GCSFileSystem (#646)

* add is not none

* test
---
 gcsfs/core.py            | 2 +-
 gcsfs/tests/test_core.py | 2 ++
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/gcsfs/core.py b/gcsfs/core.py
index 6fd05eae..73dbcebd 100644
--- a/gcsfs/core.py
+++ b/gcsfs/core.py
@@ -285,7 +285,7 @@ def __init__(
         version_aware=False,
         **kwargs,
     ):
-        if cache_timeout:
+        if cache_timeout is not None:
             kwargs["listings_expiry_time"] = cache_timeout
         super().__init__(
             self,
diff --git a/gcsfs/tests/test_core.py b/gcsfs/tests/test_core.py
index 28f1a1d6..2a0b4c0c 100644
--- a/gcsfs/tests/test_core.py
+++ b/gcsfs/tests/test_core.py
@@ -1428,6 +1428,8 @@ def test_expiry_keyword():
     assert gcs.dircache.listings_expiry_time == 1
     gcs = GCSFileSystem(cache_timeout=1, token="anon")
     assert gcs.dircache.listings_expiry_time == 1
+    gcs = GCSFileSystem(cache_timeout=0, token="anon")
+    assert gcs.dircache.listings_expiry_time == 0
 
 
 def test_copy_cache_invalidated(gcs):