feat: avoid errors when retrieving invalid routine

doc/changelog.d/3606.miscellaneous.md

@@ -0,0 +1 @@
+feat: avoid errors when retrieving invalid routine

src/ansys/mapdl/core/parameters.py

@@ -171,7 +171,14 @@ def routine(self) -> str:
         >>> mapdl.parameters.routine
         'PREP7'
         """
-        value = self._mapdl.get_value("ACTIVE", item1="ROUT")
+        value = int(self._mapdl.get_value("ACTIVE", item1="ROUT"))
+        if value not in ROUTINE_MAP:
+            self._mapdl.logger.info(
+                f"Getting a valid routine number failed. Routine obtained is {value}. Executing 'FINISH'."
+            )
+            self._mapdl.finish()
+            value = 0
+
         return ROUTINE_MAP[int(value)]
 
     @property

tests/test_parameters.py

@@ -20,7 +20,9 @@
 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 # SOFTWARE.
 
+import logging
 import re
+from unittest.mock import patch
 
 import numpy as np
 import pytest
@@ -470,3 +472,25 @@ def test_non_interactive(mapdl, cleared):
         mapdl.parameters["qwer"] = 3
 
     assert mapdl.parameters["qwer"] == 3
+
+
+@pytest.mark.parametrize("value", [121, 299])
+def test_failing_get_routine(mapdl, caplog, value):
+    from ansys.mapdl.core.parameters import ROUTINE_MAP
+
+    prev_level = mapdl.logger.logger.level
+    mapdl.logger.setLevel(logging.INFO)
+
+    with patch("ansys.mapdl.core.mapdl_extended._MapdlExtended.get_value") as mck:
+        mck.return_value = value
+        with caplog.at_level(logging.INFO):
+            routine = mapdl.parameters.routine
+
+        mck.assert_called_once()
+
+    txt = str(caplog.text)
+    assert f"Getting a valid routine number failed." in txt
+    assert f"Routine obtained is {value}. Executing 'FINISH'." in txt
+    assert routine == ROUTINE_MAP[0]
+
+    mapdl.logger.setLevel(prev_level)