From 6d603d15782b00485245b2520da15da03e82b51d Mon Sep 17 00:00:00 2001
From: Eljas Roellin <eljas.roellin@ikmail.com>
Date: Wed, 13 Nov 2024 12:24:45 +0100
Subject: [PATCH] add a test to check the behavior is correct

---
 tests/test_backed_hdf5.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tests/test_backed_hdf5.py b/tests/test_backed_hdf5.py
index 19b4ca44d..2b584ad67 100644
--- a/tests/test_backed_hdf5.py
+++ b/tests/test_backed_hdf5.py
@@ -270,6 +270,8 @@ def test_return_to_memory_mode(adata, backing_h5ad):
     adata.filename = None
     assert not adata.isbacked
 
+    assert adata.X is not None
+
     # make sure the previous file had been properly closed
     # when setting `adata.filename = None`
     # if it hadn’t the following line would throw an error