Update tests/test_declare.py

Co-authored-by: Dimitri Yatsenko <dimitri@datajoint.com>

Author: ethho

tests/test_declare.py

@@ -366,9 +366,5 @@ def test_hidden_attributes(schema_any):
     assert (
         list(Experiment().heading._attributes.keys())[-1].split("_")[2] == "timestamp"
     )
-    assert (
-        len([a for a in Experiment().heading._attributes.values() if a.is_hidden]) != 0
-    )
-    assert (
-        len([a for a in Experiment().heading.attributes.values() if a.is_hidden]) == 0
-    )
+    assert any(a.is_hidden for a in Experiment().heading._attributes.values())
+    assert not any(a.is_hidden for a in Experiment().heading.attributes.values())