diff --git a/tests/grid_functions/batman.it00000000.bp4/data.0 b/tests/grid_functions/batman.it00000000.bp4/data.0
new file mode 100755
index 00000000..3f561b9b
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diff --git a/tests/grid_functions/batman.it00000000.bp4/md.0 b/tests/grid_functions/batman.it00000000.bp4/md.0
new file mode 100755
index 00000000..c009c9cd
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diff --git a/tests/grid_functions/batman.it00000000.bp4/md.idx b/tests/grid_functions/batman.it00000000.bp4/md.idx
new file mode 100755
index 00000000..603abb7e
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diff --git a/tests/grid_functions/batman.it00000000.bp4/profiling.json b/tests/grid_functions/batman.it00000000.bp4/profiling.json
new file mode 100755
index 00000000..d886f460
--- /dev/null
+++ b/tests/grid_functions/batman.it00000000.bp4/profiling.json
@@ -0,0 +1,3 @@
+[
+{ "rank": 0, "start": "Tue_Nov_14_12:09:49_2023", "threads": 1, "bytes": 8458128, "mkdir_mus": 409, "aggregation_mus": 0, "meta_sort_merge_mus": 156, "minmax_mus": 0, "memcpy_mus": 1047, "buffering_mus": 5984, "transport_0": { "type": "File_POSIX", "close_mus": 144, "write_mus": 4847, "open_mus": 8134}, "transport_1": { "type": "File_POSIX", "close_mus": 0, "write_mus": 216, "open_mus": 7255} }
+]
diff --git a/tests/test_cactus_grid_functions.py b/tests/test_cactus_grid_functions.py
index 80a12f10..8ce1bac1 100755
--- a/tests/test_cactus_grid_functions.py
+++ b/tests/test_cactus_grid_functions.py
@@ -61,7 +61,7 @@ def test_contains(self):
 
     def test_contains_OpenPMDVars(self):
         vars3D = self.gd.xyz
-        self.assertIn("admbasex_alp", vars3D)
+        self.assertIn('wavetoyx_u', vars3D)
 
     def test__getitem(self):
         self.assertIs(self.gd["xy"], self.gd._all_griddata[(0, 1)])
@@ -536,12 +536,8 @@ def test__init(self):
         # Here we can we find all the variables
         self.assertCountEqual(
             list(self.gf._vars_openpmd_files.keys()),
-            ['admbasex_alp', 'admbasex_kxx', 'admbasex_kxy', 'admbasex_kxz', 'admbasex_kyy', 
-             'admbasex_kyz', 'admbasex_kzz', 'admbasex_gxx', 'admbasex_gxy', 'admbasex_gxz',
-             'admbasex_gyy', 'admbasex_gyz', 'admbasex_gzz', 'admbasex_betax', 'admbasex_betay',
-             'admbasex_betaz', 'weyl_psi0im', 'weyl_psi0re', 'weyl_psi1im', 'weyl_psi1re',
-             'weyl_psi2im', 'weyl_psi2re', 'weyl_psi3im', 'weyl_psi3re', 'weyl_psi4im',
-             'weyl_psi4re', 'z4c_allc', 'carpetx_regrid_error'
+            ['wavetoyx_eps', 'wavetoyx_rho_err', 'wavetoyx_u_err', 'wavetoyx_rho_rhs', 
+             'wavetoyx_u_rhs', 'wavetoyx_rho', 'wavetoyx_u'
             ]
         )
 
@@ -570,6 +566,11 @@ def test_total_filesize(self):
         size_KB = size_B / 1024
         self.assertEqual(size_KB, self.gf.total_filesize("KB"))
 
+    def test_refinement_levels(self):
+        wavetoyx_u = self.gf.fields.wavetoyx_u
+        wavetoyx_u0=wavetoyx_u[0]
+        self.assertEquals(wavetoyx_u0.refinement_levels, [0,1])
+
     def test__str(self):
         self.assertIn("vz", str(self.gf))
         self.assertIn("Available grid data of dimension 3D (xyz)", str(self.gf))