diff --git a/virtualizarr/tests/test_backend.py b/virtualizarr/tests/test_backend.py
index c604abc..3b0c031 100644
--- a/virtualizarr/tests/test_backend.py
+++ b/virtualizarr/tests/test_backend.py
@@ -104,6 +104,23 @@ def index_mappings_equal(indexes1: Mapping[str, Index], indexes2: Mapping[str, I
     return True
 
 
+class TestOpenVirtualDatasetAttrs:
+    def test_drop_array_dimensions(self, netcdf4_file):
+        # regression test for GH issue #150
+        vds = open_virtual_dataset(netcdf4_file, indexes={})
+        assert "_ARRAY_DIMENSIONS" not in vds["air"].attrs
+
+    def test_coordinate_variable_attrs_preserved(self, netcdf4_file):
+        # regression test for GH issue #155
+        vds = open_virtual_dataset(netcdf4_file, indexes={})
+        assert vds["lat"].attrs == {
+            "standard_name": "latitude",
+            "long_name": "Latitude",
+            "units": "degrees_north",
+            "axis": "Y",
+        }
+
+
 @network
 @requires_s3fs
 class TestReadFromS3:
diff --git a/virtualizarr/tests/test_xarray.py b/virtualizarr/tests/test_xarray.py
index 7534f26..9db6e3a 100644
--- a/virtualizarr/tests/test_xarray.py
+++ b/virtualizarr/tests/test_xarray.py
@@ -222,23 +222,6 @@ def test_concat_dim_coords_along_existing_dim(self):
         assert result.data.zarray.zarr_format == zarray.zarr_format
 
 
-class TestOpenVirtualDatasetAttrs:
-    def test_drop_array_dimensions(self, netcdf4_file):
-        # regression test for GH issue #150
-        vds = open_virtual_dataset(netcdf4_file, indexes={})
-        assert "_ARRAY_DIMENSIONS" not in vds["air"].attrs
-
-    def test_coordinate_variable_attrs_preserved(self, netcdf4_file):
-        # regression test for GH issue #155
-        vds = open_virtual_dataset(netcdf4_file, indexes={})
-        assert vds["lat"].attrs == {
-            "standard_name": "latitude",
-            "long_name": "Latitude",
-            "units": "degrees_north",
-            "axis": "Y",
-        }
-
-
 class TestCombineUsingIndexes:
     def test_combine_by_coords(self, netcdf4_files):
         filepath1, filepath2 = netcdf4_files