diff --git a/tests/unit/class_info/test_chem_classes.py b/tests/unit/class_info/test_chem_classes.py
deleted file mode 100644
index 56063961..00000000
--- a/tests/unit/class_info/test_chem_classes.py
+++ /dev/null
@@ -1,53 +0,0 @@
-import unittest
-from nplinker.class_info.chem_classes import MolNetEnhancerResults
-from .. import DATA_DIR
-
-
-# TODO:  No such file or directory: 'canopus.tsv'
-# class TestCanopusResults(unittest.TestCase):
-#     def setUp(self):
-#         canopus_test_dir = os.path.join(Path(__file__).parent, "data")
-#         can_res = CanopusResults(canopus_test_dir, 'gnps_test_data')
-#         self._cr = can_res
-
-#     def test_running(self):
-#         for i, elem in enumerate([
-#                 self._cr.spectra_classes, self._cr.spectra_classes_names,
-#                 self._cr.spectra_classes_names_inds, self._cr.mf_classes,
-#                 self._cr.mf_classes_names,
-#                 self._cr.mf_classes_names_inds]):
-#             self.assertTrue(len(elem) != 0, f"Element {i} failed to load")
-
-#     def test_can_treemap(self):
-#         # todo
-#         pass
-
-
-class TestMolNetEnhancerResults(unittest.TestCase):
-    def setUp(self):
-        # ./data/ClassyFireResults_Network.txt is required
-        mne_res = MolNetEnhancerResults(DATA_DIR)
-        self._mr = mne_res
-
-    def test_running(self):
-        for i, elem in enumerate(
-            [
-                self._mr.spectra2mf,
-                self._mr.spectra_classes_names,
-                self._mr.spectra_classes_names_inds,
-                self._mr.mf_classes,
-            ]
-        ):
-            self.assertTrue(len(elem) != 0, f"Element {i} failed to load")
-
-        test_spec_classes = self._mr.spectra_classes("130522")
-        self.assertTrue(len(test_spec_classes) != 0, "func spectra_classes() not working")
-        self.assertTrue(
-            self._mr.spectra_classes("31") is None,
-            "handling 'no matches' goes wrong, MFs/spectra without"
-            " classes end up in mne results",
-        )
-
-
-if __name__ == "__main__":
-    unittest.main()