Port issue-351.sli to Pytest

testsuite/pytests/sli2py_regressions/test_issue_351.py

@@ -0,0 +1,73 @@
+# -*- coding: utf-8 -*-
+#
+# test_issue_351.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/>.
+
+"""
+Regression test for Issue #351 (GitHub).
+
+This test ensures `Connect` raises exception if connecting to recording device with probabilistic connection rule.
+"""
+
+import pytest
+
+import nest
+
+
+@pytest.fixture(autouse=True)
+def reset():
+    nest.ResetKernel()
+
+
+ignore_model = [
+    "multimeter",  # inverse order
+    "voltmeter",  # inverse order
+    "weight_recorder",  # attaches to synapses
+    "correlation_detector",  # has proxies
+    "correlomatrix_detector",  # has proxies
+    "spin_detector",  # binary recorder
+    "correlospinmatrix_detector",  # binary recorder
+]
+
+models = [m for m in nest.node_models if nest.GetDefaults(m, "element_type") == "recorder" and m not in ignore_model]
+
+
+@pytest.mark.parametrize("model", models)
+@pytest.mark.parametrize(
+    "conn_spec",
+    [
+        {"rule": "fixed_indegree", "indegree": 1},
+        {"rule": "fixed_outdegree", "outdegree": 1},
+        {"rule": "fixed_total_number", "N": 1},
+        {"rule": "pairwise_bernoulli", "p": 1.0},
+    ],
+)
+def test_error_raised_for_illegal_connections_to_recording_device(model, conn_spec):
+    """
+    Test that an error is raised for prohibited connections to recording device.
+
+    This test ensures that connections to devices without proxies are prohibited
+    for probabilistic connection rules.
+    """
+
+    nrn = nest.Create("iaf_psc_alpha", 1)
+    rec = nest.Create(model, 2)
+
+    with pytest.raises(nest.kernel.NESTErrors.IllegalConnection):
+        nest.Connect(nrn, rec, conn_spec=conn_spec)