CORBA - Check if instances have been exited (#317)

* check if instance has already been exited

* check reference and not object

* update ansys order

Author: akaszynski

pyansys/mapdl_corba.py

@@ -19,12 +19,15 @@
 
 INSTANCES = []
 
-# Ensure all instances close on exit
+# Ensure all instances close on exit within Windows
 @atexit.register
 def cleanup():  # pragma: no cover
     if os.name == 'nt':
-        for instance in INSTANCES:
-            instance().exit()
+        for ref in INSTANCES:
+            # check if object has already been collected
+            instance = ref()
+            if instance is not None:
+                instance.exit()
 
 
 def tail(filename, nlines):

tests/conftest.py

@@ -12,11 +12,12 @@
 pyvista.OFF_SCREEN = True
 
 # check for a valid MAPDL install with CORBA
-valid_rver = ['182', '190', '191', '192', '193', '194', '195', '201']
+valid_rver = ['202', '201', '195', '194', '193', '192', '191', '190', '182']
 EXEC_FILE = None
 for rver in valid_rver:
     if os.path.isfile(get_ansys_bin(rver)):
         EXEC_FILE = get_ansys_bin(rver)
+        break
 
 if 'PYANSYS_IGNORE_ANSYS' in os.environ:
     HAS_ANSYS = False