Debug swmm_get_version()

- add type map for swmm_getVersion
- add custom exception handling for swmm_getVersion
- add test for legacy version getter

Author: karosc

swmm-toolkit/src/swmm/toolkit/solver.i

@@ -39,6 +39,10 @@
     Py_INCREF($result);
 }
 
+%typemap(out) int swmm_getVersion {
+  $result = PyInt_FromLong($1);
+}
+
 
 %apply int *OUTPUT {
     int *index,
@@ -189,6 +193,11 @@
     $function
 }
 
+%exception swmm_getVersion
+{
+    $function
+}
+
 /* INSERTS CUSTOM EXCEPTION HANDLING IN WRAPPER */
 %exception
 {

swmm-toolkit/tests/test_solver.py

@@ -114,7 +114,12 @@ def test_version(handle):
     major, minor, patch = solver.swmm_version_info().split('.')
     print(major, minor, patch)
     assert major == '5'
-    
+
+def test_legacy_version(handle):
+    version = solver.swmm_get_version()
+    major = str(version)[0]
+    assert isinstance(version, int)
+    assert major == '5'
 
 def test_simulation_unit(handle):
     simulation_system_unit_option = solver.simulation_get_unit(shared_enum.UnitProperty.SYSTEM_UNIT)