add check in tests to make sure env works

Author: zm711

neo/test/iotest/common_io_test.py

@@ -115,7 +115,7 @@ def setUpClass(cls, *args, **kwargs):
         cls.io_readandwrite = list(set(cls.ioclass.readable_objects) & set(cls.ioclass.writeable_objects))
         # these objects can be either written or read
         cls.io_readorwrite = list(set(cls.ioclass.readable_objects) | set(cls.ioclass.writeable_objects))
-        if HAVE_DATALAD:
+        if HAVE_DATALAD and can_use_network():
             for remote_path in cls.entities_to_download:
                 download_dataset(repo=repo_for_test, remote_path=remote_path)
 

neo/test/rawiotest/common_rawio_test.py

@@ -65,7 +65,7 @@ def setUp(self):
         """
         self.shortname = self.rawioclass.__name__.lower().replace("rawio", "")
 
-        if HAVE_DATALAD:
+        if HAVE_DATALAD and self.use_network:
             for remote_path in self.entities_to_download:
                 download_dataset(repo=repo_for_test, remote_path=remote_path)
         else: