Port regression test 349 to Pytests

testsuite/pytests/sli2py_regressions/test_ticket_349.py

@@ -0,0 +1,65 @@
+# -*- coding: utf-8 -*-
+#
+# test_ticket_349.py
+#
+# This file is part of NEST.
+#
+# Copyright (C) 2004 The NEST Initiative
+#
+# NEST is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 2 of the License, or
+# (at your option) any later version.
+#
+# NEST is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with NEST.  If not, see <http://www.gnu.org/licenses/>.
+
+import nest
+import pytest
+
+"""
+Regression test for Ticket #349.
+
+Ensure that a multimeter handles illegal entries in the record_from list gracefully
+and that an empty record_from list does not cause the simulation to crash.
+
+Author: Hans Ekkehard Plesser, 2009-07-02
+"""
+
+
+def test_exception_on_bad_recordables():
+    nest.ResetKernel()
+
+    good_recordables = nest.GetDefaults("iaf_psc_alpha")["recordables"]
+    not_recordables = [f"{item}_foo" for item in good_recordables]
+
+    mm = nest.Create("multimeter")
+    nrn = nest.Create("iaf_psc_alpha")
+
+    with pytest.raises(nest.kernel.NESTErrors.IllegalConnection):
+        mm.record_from = not_recordables
+        nest.Connect(mm, nrn)
+
+    # If we get here, error was raised properly above, so we can test
+    # if trying again with good values will succeed.
+    mm.record_from = good_recordables
+    nest.Connect(mm, nrn)
+
+    # No assert require, we just check that Connect() succeeds
+
+
+def test_empty_recordables():
+    nest.ResetKernel()
+    mm = nest.Create("multimeter", params={"record_from": []})
+    nrn = nest.Create("iaf_psc_alpha")
+    nest.Connect(mm, nrn)
+
+    nest.Simulate(10.0)
+
+    assert len(mm.events["senders"]) == 0
+    assert len(mm.events["times"]) == 0