diff --git a/virtualizarr/tests/test_integration.py b/virtualizarr/tests/test_integration.py
index 05cd62e11..1ced398e6 100644
--- a/virtualizarr/tests/test_integration.py
+++ b/virtualizarr/tests/test_integration.py
@@ -29,6 +29,7 @@
     requires_zarr_python,
     slow_test,
 )
+from virtualizarr.tests.utils import PYTEST_TMP_DIRECTORY_URL_PREFIX
 
 icechunk = pytest.importorskip("icechunk")
 
@@ -143,19 +144,16 @@ def roundtrip_as_in_memory_icechunk(
 
     config = icechunk.RepositoryConfig.default()
 
-    url_prefixes = ["file:///private/var/folders/70", "file:///tmp/"]
-
-    for url_prefix in url_prefixes:
-        container = icechunk.VirtualChunkContainer(
-            url_prefix=url_prefix,
-            store=icechunk.local_filesystem_store(url_prefix),
-        )
-        config.set_virtual_chunk_container(container)
+    container = icechunk.VirtualChunkContainer(
+        url_prefix=PYTEST_TMP_DIRECTORY_URL_PREFIX,
+        store=icechunk.local_filesystem_store(PYTEST_TMP_DIRECTORY_URL_PREFIX),
+    )
+    config.set_virtual_chunk_container(container)
 
     repo = icechunk.Repository.create(
         storage=storage,
         config=config,
-        authorize_virtual_chunk_access={prefix: None for prefix in url_prefixes},
+        authorize_virtual_chunk_access={PYTEST_TMP_DIRECTORY_URL_PREFIX: None},
     )
     session = repo.writable_session("main")
 
diff --git a/virtualizarr/tests/test_writers/test_icechunk.py b/virtualizarr/tests/test_writers/test_icechunk.py
index d09966fc4..869954b0a 100644
--- a/virtualizarr/tests/test_writers/test_icechunk.py
+++ b/virtualizarr/tests/test_writers/test_icechunk.py
@@ -1,5 +1,3 @@
-import os
-import tempfile
 import time
 from datetime import datetime, timedelta, timezone
 from pathlib import Path
@@ -15,6 +13,7 @@
 from zarr.core.metadata import ArrayV3Metadata
 
 from virtualizarr.manifests import ChunkManifest, ManifestArray
+from virtualizarr.tests.utils import PYTEST_TMP_DIRECTORY_URL_PREFIX
 from virtualizarr.writers.icechunk import generate_chunk_key
 from virtualizarr.xarray import separate_coords
 
@@ -28,11 +27,6 @@
     )
 
 
-# Find location of pytest temporary data in what should be a cross-platform way. This should be the same as what pytest actually does - see https://docs.pytest.org/en/stable/how-to/tmp_path.html#temporary-directory-location-and-retention
-# The realpath call is there to resolve any symbolic links, such as from /var/ to /private/var/ on MacOS, as Icechunk needs the entire URL prefix without symlinks.
-PYTEST_TMP_DIRECTORY_URL_PREFIX = f"file://{os.path.realpath(tempfile.gettempdir())}"
-
-
 @pytest.fixture(scope="function")
 def icechunk_storage(tmp_path: Path) -> "Storage":
     from icechunk import Storage
diff --git a/virtualizarr/tests/utils.py b/virtualizarr/tests/utils.py
index 1336fb638..fa2935c0a 100644
--- a/virtualizarr/tests/utils.py
+++ b/virtualizarr/tests/utils.py
@@ -1,6 +1,7 @@
 from __future__ import annotations
 
 import os
+import tempfile
 from pathlib import Path
 from urllib.parse import urlparse
 
@@ -9,6 +10,10 @@
 from virtualizarr.parsers import HDFParser
 from virtualizarr.registry import ObjectStoreRegistry
 
+# Find location of pytest temporary data in what should be a cross-platform way. This should be the same as what pytest actually does - see https://docs.pytest.org/en/stable/how-to/tmp_path.html#temporary-directory-location-and-retention
+# The realpath call is there to resolve any symbolic links, such as from /var/ to /private/var/ on MacOS, as Icechunk needs the entire URL prefix without symlinks.
+PYTEST_TMP_DIRECTORY_URL_PREFIX = f"file://{os.path.realpath(tempfile.gettempdir())}"
+
 
 def obstore_local(url: str) -> ObjectStore:
     parsed = urlparse(url)